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+<table width="100%" border=0 cellpadding=0 cellspacing=2>
+<tr align="left" valign="top"><td width="33%" align="left"><a href="./EStateIndiciesFingerprints.html" title="EStateIndiciesFingerprints.html">Previous</a>&nbsp;&nbsp;<a href="./index.html" title="Table of Contents">TOC</a>&nbsp;&nbsp;<a href="./ExtractFromPDBFiles.html" title="ExtractFromPDBFiles.html">Next</a></td><td width="34%" align="middle"><strong>ExtendedConnectivityFingerprints.pl</strong></td><td width="33%" align="right"><a href="././code/ExtendedConnectivityFingerprints.html" title="View source code">Code</a>&nbsp;|&nbsp;<a href="./../pdf/ExtendedConnectivityFingerprints.pdf" title="PDF US Letter Size">PDF</a>&nbsp;|&nbsp;<a href="./../pdfgreen/ExtendedConnectivityFingerprints.pdf" title="PDF US Letter Size with narrow margins: www.changethemargins.com">PDFGreen</a>&nbsp;|&nbsp;<a href="./../pdfa4/ExtendedConnectivityFingerprints.pdf" title="PDF A4 Size">PDFA4</a>&nbsp;|&nbsp;<a href="./../pdfa4green/ExtendedConnectivityFingerprints.pdf" title="PDF A4 Size with narrow margins: www.changethemargins.com">PDFA4Green</a></td></tr>
+</table>
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+<p>
+</p>
+<h2>NAME</h2>
+<p>ExtendedConnectivityFingerprints.pl - Generate extended connectivity fingerprints for SD files</p>
+<p>
+</p>
+<h2>SYNOPSIS</h2>
+<p>ExtendedConnectivityFingerprints.pl SDFile(s)...</p>
+<p>ExtendedConnectivityFingerprints.pl [<strong>--AromaticityModel</strong> <em>AromaticityModelType</em>]
+[<strong>-a, --AtomIdentifierType</strong> <em>AtomicInvariantsAtomTypes</em>]
+[<strong>--AtomicInvariantsToUse</strong> <em>&quot;AtomicInvariant,AtomicInvariant...&quot;</em>]
+[<strong>--FunctionalClassesToUse</strong> <em>&quot;FunctionalClass1,FunctionalClass2...&quot;</em>]
+[<strong>--BitsOrder</strong> <em>Ascending | Descending</em>] [<strong>-b, --BitStringFormat</strong> <em>BinaryString | HexadecimalString</em>]
+[<strong>--CompoundID</strong> <em>DataFieldName or LabelPrefixString</em>] [<strong>--CompoundIDLabel</strong> <em>text</em>]
+[<strong>--CompoundIDMode</strong>] [<strong>--DataFields</strong> <em>&quot;FieldLabel1,FieldLabel2,...&quot;</em>]
+[<strong>-d, --DataFieldsMode</strong> <em>All | Common | Specify | CompoundID</em>]  [<strong>-f, --Filter</strong> <em>Yes | No</em>]
+[<strong>--FingerprintsLabel</strong> <em>text</em>] [<strong>-h, --help</strong>] [<strong>-k, --KeepLargestComponent</strong> <em>Yes | No</em>]
+[<strong>-m, --mode</strong> <em>ExtendedConnectivity | ExtendedConnecticityCount | ExtendedConnecticityBits</em>]
+[<strong>-n, --NeighborhoodRadius</strong> <em>number</em>] [<strong>--OutDelim</strong> <em>comma | tab | semicolon</em>] [<strong>--output</strong> <em>SD | FP | text | all</em>]
+[<strong>-o, --overwrite</strong>] [<strong>-q, --quote</strong> <em>Yes | No</em>] [<strong>-r, --root</strong> <em>RootName</em>] [<strong>-s, --size</strong> <em>number</em>]
+[<strong>--UsePerlCoreRandom</strong> <em>Yes | No</em>]
+[<strong>-v, --VectorStringFormat</strong> <em>IDsAndValuesString | IDsAndValuesPairsString | ValuesAndIDsString | ValuesAndIDsPairsString</em>]
+[<strong>-w, --WorkingDir</strong> dirname] SDFile(s)...</p>
+<p>
+</p>
+<h2>DESCRIPTION</h2>
+<p>Generate extended connectivity fingerprints [ Ref 48, Ref 52 ] for <em>SDFile(s)</em> and create appropriate
+SD, FP or CSV/TSV text file(s) containing fingerprints vector strings corresponding to molecular fingerprints.</p>
+<p>Multiple SDFile names are separated by spaces. The valid file extensions are <em>.sdf</em>
+and <em>.sd</em>. All other file names are ignored. All the SD files in a current directory
+can be specified either by <em>*.sdf</em> or the current directory name.</p>
+<p>The current release of MayaChemTools supports generation of extended connectivity fingerprints
+corresponding to following <strong>-a, --AtomIdentifierTypes</strong>:</p>
+<div class="OptionsBox">
+    AtomicInvariantsAtomTypes, DREIDINGAtomTypes, EStateAtomTypes,
+<br/>    FunctionalClassAtomTypes, MMFF94AtomTypes, SLogPAtomTypes,
+<br/>    SYBYLAtomTypes, TPSAAtomTypes, UFFAtomTypes</div>
+<p>Based on values specified for <strong>-a, --AtomIdentifierType</strong>, <strong>--AtomicInvariantsToUse</strong>
+and <strong>--FunctionalClassesToUse</strong>, initial atom types are assigned to all non-hydrogen atoms in
+a molecule and these atom types strings are converted into initial atom identifier integers using
+<strong>TextUtil::HashCode</strong> function. The duplicate atom identifiers are removed.</p>
+<p>For <strong>-n, --NeighborhoodRadius</strong> value of <em>0</em>, the initial set of unique atom identifiers comprises
+the molecule fingerprints. Otherwise, atom neighborhoods are generated for each non-hydrogen
+atom up to specified <strong>-n, --NeighborhoodRadius</strong> value. For each non-hydrogen central atom
+at a specific radius, its neighbors at next radius level along with their bond orders and previously
+calculated atom identifiers are collected which in turn are used to generate a new integer
+atom identifier; the bond orders and atom identifier pairs list is first sorted by bond order
+followed by atom identifiers to make these values graph invariant.</p>
+<p>After integer atom identifiers have been generated for all non-hydrogen atoms at all specified
+neighborhood radii, the duplicate integer atom identifiers corresponding to same hash code
+value generated using <strong>TextUtil::HashCode</strong> are tracked by keeping the atom identifiers at
+lower radius. Additionally, all structurally duplicate integer atom identifiers at each specified
+radius are also tracked by identifying equivalent atoms and bonds corresponding to substructures
+used for generating atom identifier and keeping integer atom identifier with lowest value.</p>
+<p>For <em>ExtendedConnnectivity</em> value of fingerprints <strong>-m, --mode</strong>, the duplicate identifiers are
+removed from the list and the unique atom identifiers constitute the extended connectivity
+fingerprints of a molecule.</p>
+<p>For <em>ExtendedConnnectivityCount</em> value of fingerprints <strong>-m, --mode</strong>, the occurrence of each
+unique atom identifiers appears is counted and the unique atom identifiers along with their
+count constitute the extended connectivity fingerprints of a molecule.</p>
+<p>For <em>ExtendedConnectivityBits</em> value of fingerprints <strong>-m, --mode</strong>, the unique atom identifiers
+are used as a random number seed to generate a random integer value between 0 and <strong>--Size</strong> which
+in turn is used to set corresponding bits in the fingerprint bit-vector string.</p>
+<p>Example of <em>SD</em> file containing extended connectivity fingerprints string data:</p>
+<div class="OptionsBox">
+    ... ...
+<br/>    ... ...
+<br/>    $$$$
+<br/>    ... ...
+<br/>    ... ...
+<br/>    ... ...
+<br/>    41 44  0  0  0  0  0  0  0  0999 V2000
+     -3.3652    1.4499    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
+<br/>    ... ...
+<br/>    2  3  1  0  0  0  0
+<br/>    ... ...
+<br/>    M  END
+<br/>    &gt;  &lt;CmpdID&gt;
+<br/>    Cmpd1</div>
+<div class="OptionsBox">
+    &gt;  &lt;ExtendedConnectivityFingerprints&gt;
+<br/>    FingerprintsVector;ExtendedConnectivity:AtomicInvariantsAtomTypes:Radiu
+<br/>    s2;60;AlphaNumericalValues;ValuesString;73555770 333564680 352413391 66
+<br/>    6191900 1001270906 1371674323 1481469939 1977749791 2006158649 21414087
+<br/>    99 49532520 64643108 79385615 96062769 273726379 564565671 855141035 90
+<br/>    6706094 988546669 1018231313 1032696425 1197507444 1331250018 133853...</div>
+<div class="OptionsBox">
+    $$$$
+<br/>    ... ...
+<br/>    ... ...</div>
+<p>Example of <em>FP</em> file containing extended connectivity fingerprints string data:</p>
+<div class="OptionsBox">
+    #
+<br/>    # Package = MayaChemTools 7.4
+<br/>    # Release Date = Oct 21, 2010
+<br/>    #
+<br/>    # TimeStamp = Fri Mar 11 14:43:57 2011
+<br/>    #
+<br/>    # FingerprintsStringType = FingerprintsVector
+<br/>    #
+<br/>    # Description = ExtendedConnectivity:AtomicInvariantsAtomTypes:Radius2
+<br/>    # VectorStringFormat = ValuesString
+<br/>    # VectorValuesType = AlphaNumericalValues
+<br/>    #
+<br/>    Cmpd1 60;73555770 333564680 352413391 666191900 1001270906 137167432...
+<br/>    Cmpd2 41;73555770 333564680 666191900 1142173602 1363635752 14814699...
+<br/>    ... ...
+<br/>    ... ..</div>
+<p>Example of CSV <em>Text</em> file containing extended connectivity fingerprints string data:</p>
+<div class="OptionsBox">
+    &quot;CompoundID&quot;,&quot;ExtendedConnectivityFingerprints&quot;
+<br/>    &quot;Cmpd1&quot;,&quot;FingerprintsVector;ExtendedConnectivity:AtomicInvariantsAtomTy
+<br/>    pes:Radius2;60;AlphaNumericalValues;ValuesString;73555770 333564680 352
+<br/>    413391 666191900 1001270906 1371674323 1481469939 1977749791 2006158649
+<br/>    2141408799 49532520 64643108 79385615 96062769 273726379 564565671 8551
+<br/>    41035 906706094 988546669 1018231313 1032696425 1197507444 13312500...&quot;
+<br/>    ... ...
+<br/>    ... ...</div>
+<p>The current release of MayaChemTools generates the following types of extended connectivity
+fingerprints vector strings:</p>
+<div class="OptionsBox">
+    FingerprintsVector;ExtendedConnectivity:AtomicInvariantsAtomTypes:Radi
+<br/>    us2;60;AlphaNumericalValues;ValuesString;73555770 333564680 352413391
+<br/>    666191900 1001270906 1371674323 1481469939 1977749791 2006158649 21414
+<br/>    08799 49532520 64643108 79385615 96062769 273726379 564565671 85514103
+<br/>    5 906706094 988546669 1018231313 1032696425 1197507444 1331250018 1338
+<br/>    532734 1455473691 1607485225 1609687129 1631614296 1670251330 17303...</div>
+<div class="OptionsBox">
+    FingerprintsVector;ExtendedConnectivityCount:AtomicInvariantsAtomTypes
+<br/>    :Radius2;60;NumericalValues;IDsAndValuesString;73555770 333564680 3524
+<br/>    13391 666191900 1001270906 1371674323 1481469939 1977749791 2006158649
+<br/>    2141408799 49532520 64643108 79385615 96062769 273726379 564565671...;
+<br/>    3 2 1 1 14 1 2 10 4 3 1 1 1 1 2 1 2 1 1 1 2 3 1 1 2 1 3 3 8 2 2 2 6 2
+<br/>    1 2 1 1 2 1 1 1 2 1 1 2 1 2 1 1 1 1 1 1 1 1 1 2 1 1</div>
+<div class="OptionsBox">
+    FingerprintsBitVector;ExtendedConnectivityBits:AtomicInvariantsAtomTyp
+<br/>    es:Radius2;1024;BinaryString;Ascending;0000000000000000000000000000100
+<br/>    0000000001010000000110000011000000000000100000000000000000000000100001
+<br/>    1000000110000000000000000000000000010011000000000000000000000000010000
+<br/>    0000000000000000000000000010000000000000000001000000000000000000000000
+<br/>    0000000000010000100001000000000000101000000000000000100000000000000...</div>
+<div class="OptionsBox">
+    FingerprintsBitVector;ExtendedConnectivityBits:AtomicInvariantsAtomTyp
+<br/>    es:Radius2;1024;HexadecimalString;Ascending;000000010050c0600800000803
+<br/>    0300000091000004000000020000100000000124008200020000000040020000000000
+<br/>    2080000000820040010020000000008040000000000080001000000000400000000000
+<br/>    4040000090000061010000000800200000000000001400000000020080000000000020
+<br/>    00008020200000408000</div>
+<div class="OptionsBox">
+    FingerprintsVector;ExtendedConnectivity:FunctionalClassAtomTypes:Radiu
+<br/>    s2;57;AlphaNumericalValues;ValuesString;24769214 508787397 850393286 8
+<br/>    62102353 981185303 1231636850 1649386610 1941540674 263599683 32920567
+<br/>    1 571109041 639579325 683993318 723853089 810600886 885767127 90326012
+<br/>    7 958841485 981022393 1126908698 1152248391 1317567065 1421489994 1455
+<br/>    632544 1557272891 1826413669 1983319256 2015750777 2029559552 20404...</div>
+<div class="OptionsBox">
+    FingerprintsVector;ExtendedConnectivityCount:FunctionalClassAtomTypes:
+<br/>    Radius2;57;NumericalValues;IDsAndValuesString;24769214 508787397 85039
+<br/>    3286 862102353 981185303 1231636850 1649386610 1941540674 263599683 32
+<br/>    9205671 571109041 639579325 683993318 723853089 810600886 885767127...;
+<br/>    1 1 1 10 2 22 3 1 3 3 1 1 1 3 2 2 1 2 2 2 3 1 1 1 1 1 14 1 1 1 1 1 1 2
+<br/>    1 2 1 1 2 2 1 1 2 1 1 1 2 1 1 2 1 1 1 1 1 1 1</div>
+<div class="OptionsBox">
+    FingerprintsBitVector;ExtendedConnectivityBits:FunctionalClassAtomType
+<br/>    s:Radius2;1024;BinaryString;Ascending;00000000000000000000100000000000
+<br/>    0000000001000100000000001000000000000000000000000000000000101000000010
+<br/>    0000001000000000010000000000000000000000000000000000000000000000000100
+<br/>    0000000000001000000000000001000000000001001000000000000000000000000000
+<br/>    0000000000000000100000000000001000000000000000000000000000000000000...</div>
+<div class="OptionsBox">
+    FingerprintsVector;ExtendedConnectivity:DREIDINGAtomTypes:Radius2;56;A
+<br/>    lphaNumericalValues;ValuesString;280305427 357928343 721790579 1151822
+<br/>    898 1207111054 1380963747 1568213839 1603445250 4559268 55012922 18094
+<br/>    0813 335715751 534801009 684609658 829361048 972945982 999881534 10076
+<br/>    55741 1213692591 1222032501 1224517934 1235687794 1244268533 152812070
+<br/>    0 1629595024 1856308891 1978806036 2001865095 2096549435 172675415 ...</div>
+<div class="OptionsBox">
+    FingerprintsVector;ExtendedConnectivity:EStateAtomTypes:Radius2;62;Alp
+<br/>    haNumericalValues;ValuesString;25189973 528584866 662581668 671034184
+<br/>    926543080 1347067490 1738510057 1759600920 2034425745 2097234755 21450
+<br/>    44754 96779665 180364292 341712110 345278822 386540408 387387308 50430
+<br/>    1706 617094135 771528807 957666640 997798220 1158349170 1291258082 134
+<br/>    1138533 1395329837 1420277211 1479584608 1486476397 1487556246 1566...</div>
+<div class="OptionsBox">
+    FingerprintsVector;ExtendedConnectivity:MMFF94AtomTypes:Radius2;64;Alp
+<br/>    haNumericalValues;ValuesString;224051550 746527773 998750766 103704190
+<br/>    2 1239701709 1248384926 1259447756 1521678386 1631549126 1909437580 20
+<br/>    37095052 2104274756 2117729376 8770364 31445800 81450228 314289324 344
+<br/>    041929 581773587 638555787 692022098 811840536 929651561 936421792 988
+<br/>    636432 1048624296 1054288509 1369487579 1454058929 1519352190 17271...</div>
+<div class="OptionsBox">
+    FingerprintsVector;ExtendedConnectivity:SLogPAtomTypes:Radius2;71;Alph
+<br/>    aNumericalValues;ValuesString;78989290 116507218 489454042 888737940 1
+<br/>    162561799 1241797255 1251494264 1263717127 1471206899 1538061784 17654
+<br/>    07295 1795036542 1809833874 2020454493 2055310842 2117729376 11868981
+<br/>    56731842 149505242 184525155 196984339 288181334 481409282 556716568 6
+<br/>    41915747 679881756 721736571 794256218 908276640 992898760 10987549...</div>
+<div class="OptionsBox">
+    FingerprintsVector;ExtendedConnectivity:SYBYLAtomTypes:Radius2;58;Alph
+<br/>    aNumericalValues;ValuesString;199957044 313356892 455463968 465982819
+<br/>    1225318176 1678585943 1883366064 1963811677 2117729376 113784599 19153
+<br/>    8837 196629033 263865277 416380653 477036669 681527491 730724924 90906
+<br/>    5537 1021959189 1133014972 1174311016 1359441203 1573452838 1661585138
+<br/>    1668649038 1684198062 1812312554 1859266290 1891651106 2072549404 ...</div>
+<div class="OptionsBox">
+    FingerprintsVector;ExtendedConnectivity:TPSAAtomTypes:Radius2;47;Alpha
+<br/>    NumericalValues;ValuesString;20818206 259344053 862102353 1331904542 1
+<br/>    700688206 265614156 363161397 681332588 810600886 885767127 950172500
+<br/>    951454814 1059668746 1247054493 1382302230 1399502637 1805025917 19189
+<br/>    39561 2114677228 2126402271 8130483 17645742 32278373 149975755 160327
+<br/>    654 256360355 279492740 291251259 317592700 333763396 972105960 101...</div>
+<div class="OptionsBox">
+    FingerprintsVector;ExtendedConnectivity:UFFAtomTypes:Radius2;56;AlphaN
+<br/>    umericalValues;ValuesString;280305427 357928343 721790579 1151822898 1
+<br/>    207111054 1380963747 1568213839 1603445250 4559268 55012922 180940813
+<br/>    335715751 534801009 684609658 829361048 972945982 999881534 1007655741
+<br/>    1213692591 1222032501 1224517934 1235687794 1244268533 1528120700 162
+<br/>    9595024 1856308891 1978806036 2001865095 2096549435 172675415 18344...</div>
+<p>
+</p>
+<h2>OPTIONS</h2>
+<dl>
+<dt><strong><strong>--AromaticityModel</strong> <em>MDLAromaticityModel | TriposAromaticityModel | MMFFAromaticityModel | ChemAxonBasicAromaticityModel | ChemAxonGeneralAromaticityModel | DaylightAromaticityModel | MayaChemToolsAromaticityModel</em></strong></dt>
+<dd>
+<p>Specify aromaticity model to use during detection of aromaticity. Possible values in the current
+release are: <em>MDLAromaticityModel, TriposAromaticityModel, MMFFAromaticityModel,
+ChemAxonBasicAromaticityModel, ChemAxonGeneralAromaticityModel, DaylightAromaticityModel
+or MayaChemToolsAromaticityModel</em>. Default value: <em>MayaChemToolsAromaticityModel</em>.</p>
+<p>The supported aromaticity model names along with model specific control parameters
+are defined in <strong>AromaticityModelsData.csv</strong>, which is distributed with the current release
+and is available under <strong>lib/data</strong> directory. <strong>Molecule.pm</strong> module retrieves data from
+this file during class instantiation and makes it available to method <strong>DetectAromaticity</strong>
+for detecting aromaticity corresponding to a specific model.</p>
+</dd>
+<dt><strong><strong>-a, --AtomIdentifierType</strong> <em>AtomicInvariantsAtomTypes | FunctionalClassAtomTypes | DREIDINGAtomTypes | EStateAtomTypes | MMFF94AtomTypes | SLogPAtomTypes | SYBYLAtomTypes | TPSAAtomTypes | UFFAtomTypes</em></strong></dt>
+<dd>
+<p>Specify atom identifier type to use for assignment of initial atom identifier to non-hydrogen
+atoms during calculation of extended connectivity fingerprints [ Ref 48, Ref 52]. Possible values
+in the current release are: <em>AtomicInvariantsAtomTypes, FunctionalClassAtomTypes,
+DREIDINGAtomTypes, EStateAtomTypes, MMFF94AtomTypes, SLogPAtomTypes, SYBYLAtomTypes,
+TPSAAtomTypes, UFFAtomTypes</em>. Default value: <em>AtomicInvariantsAtomTypes</em>.</p>
+</dd>
+<dt><strong><strong>--AtomicInvariantsToUse</strong> <em>&quot;AtomicInvariant,AtomicInvariant...&quot;</em></strong></dt>
+<dd>
+<p>This value is used during <em>AtomicInvariantsAtomTypes</em> value of <strong>a, --AtomIdentifierType</strong>
+option. It's a list of comma separated valid atomic invariant atom types.</p>
+<p>Possible values for atomic invarians are: <em>AS, X, BO,  LBO, SB, DB, TB,
+H, Ar, RA, FC, MN, SM</em>. Default value [ Ref 24 ]: <em>AS,X,BO,H,FC,MN</em>.</p>
+<p>The atomic invariants abbreviations correspond to:</p>
+<div class="OptionsBox">
+    AS = Atom symbol corresponding to element symbol</div>
+<div class="OptionsBox">
+    X&lt;n&gt;   = Number of non-hydrogen atom neighbors or heavy atoms
+<br/>    BO&lt;n&gt; = Sum of bond orders to non-hydrogen atom neighbors or heavy atoms
+<br/>    LBO&lt;n&gt; = Largest bond order of non-hydrogen atom neighbors or heavy atoms
+<br/>    SB&lt;n&gt; = Number of single bonds to non-hydrogen atom neighbors or heavy atoms
+<br/>    DB&lt;n&gt; = Number of double bonds to non-hydrogen atom neighbors or heavy atoms
+<br/>    TB&lt;n&gt; = Number of triple bonds to non-hydrogen atom neighbors or heavy atoms
+<br/>    H&lt;n&gt;   = Number of implicit and explicit hydrogens for atom
+<br/>    Ar     = Aromatic annotation indicating whether atom is aromatic
+<br/>    RA     = Ring atom annotation indicating whether atom is a ring
+<br/>    FC&lt;+n/-n&gt; = Formal charge assigned to atom
+<br/>    MN&lt;n&gt; = Mass number indicating isotope other than most abundant isotope
+<br/>    SM&lt;n&gt; = Spin multiplicity of atom. Possible values: 1 (singlet), 2 (doublet) or
+            3 (triplet)</div>
+<p>Atom type generated by AtomTypes::AtomicInvariantsAtomTypes class corresponds to:</p>
+<div class="OptionsBox">
+    AS.X&lt;n&gt;.BO&lt;n&gt;.LBO&lt;n&gt;.&lt;SB&gt;&lt;n&gt;.&lt;DB&gt;&lt;n&gt;.&lt;TB&gt;&lt;n&gt;.H&lt;n&gt;.Ar.RA.FC&lt;+n/-n&gt;.MN&lt;n&gt;.SM&lt;n&gt;</div>
+<p>Except for AS which is a required atomic invariant in atom types, all other atomic invariants are
+optional. Atom type specification doesn't include atomic invariants with zero or undefined values.</p>
+<p>In addition to usage of abbreviations for specifying atomic invariants, the following descriptive words
+are also allowed:</p>
+<div class="OptionsBox">
+    X : NumOfNonHydrogenAtomNeighbors or NumOfHeavyAtomNeighbors
+<br/>    BO : SumOfBondOrdersToNonHydrogenAtoms or SumOfBondOrdersToHeavyAtoms
+<br/>    LBO : LargestBondOrderToNonHydrogenAtoms or LargestBondOrderToHeavyAtoms
+<br/>    SB :  NumOfSingleBondsToNonHydrogenAtoms or NumOfSingleBondsToHeavyAtoms
+<br/>    DB : NumOfDoubleBondsToNonHydrogenAtoms or NumOfDoubleBondsToHeavyAtoms
+<br/>    TB : NumOfTripleBondsToNonHydrogenAtoms or NumOfTripleBondsToHeavyAtoms
+<br/>    H :  NumOfImplicitAndExplicitHydrogens
+<br/>    Ar : Aromatic
+<br/>    RA : RingAtom
+<br/>    FC : FormalCharge
+<br/>    MN : MassNumber
+<br/>    SM : SpinMultiplicity</div>
+<p><em>AtomTypes::AtomicInvariantsAtomTypes</em> module is used to assign atomic invariant
+atom types.</p>
+</dd>
+<dt><strong><strong>--BitsOrder</strong> <em>Ascending | Descending</em></strong></dt>
+<dd>
+<p>Bits order to use during generation of fingerprints bit-vector string for <em>ExtendedConnectivityBits</em>
+value of <strong>-m, --mode</strong> option. Possible values: <em>Ascending, Descending</em>. Default: <em>Ascending</em>.</p>
+<p><em>Ascending</em> bit order which corresponds to first bit in each byte as the lowest bit as
+opposed to the highest bit.</p>
+<p>Internally, bits are stored in <em>Ascending</em> order using Perl vec function. Regardless
+of machine order, big-endian or little-endian, vec function always considers first
+string byte as the lowest byte and first bit within each byte as the lowest bit.</p>
+</dd>
+<dt><strong><strong>-b, --BitStringFormat</strong> <em>BinaryString | HexadecimalString</em></strong></dt>
+<dd>
+<p>Format of fingerprints bit-vector string data in output SD, FP or CSV/TSV text file(s) specified by
+<strong>--output</strong> used during <em>ExtendedConnectivityBits</em> value of <strong>-m, --mode</strong> option. Possible
+values: <em>BinaryString, HexadecimalString</em>. Default value: <em>BinaryString</em>.</p>
+<p><em>BinaryString</em> corresponds to an ASCII string containing 1s and 0s. <em>HexadecimalString</em>
+contains bit values in ASCII hexadecimal format.</p>
+<p>Examples:</p>
+<div class="OptionsBox">
+    FingerprintsBitVector;ExtendedConnectivityBits:AtomicInvariantsAtomTyp
+<br/>    es:Radius2;1024;BinaryString;Ascending;0000000000000000000000000000100
+<br/>    0000000001010000000110000011000000000000100000000000000000000000100001
+<br/>    1000000110000000000000000000000000010011000000000000000000000000010000
+<br/>    0000000000000000000000000010000000000000000001000000000000000000000000
+<br/>    0000000000010000100001000000000000101000000000000000100000000000000...</div>
+<div class="OptionsBox">
+    FingerprintsBitVector;ExtendedConnectivityBits:FunctionalClassAtomType
+<br/>    s:Radius2;1024;BinaryString;Ascending;00000000000000000000100000000000
+<br/>    0000000001000100000000001000000000000000000000000000000000101000000010
+<br/>    0000001000000000010000000000000000000000000000000000000000000000000100
+<br/>    0000000000001000000000000001000000000001001000000000000000000000000000
+<br/>    0000000000000000100000000000001000000000000000000000000000000000000...</div>
+</dd>
+<dt><strong><strong>--FunctionalClassesToUse</strong> <em>&quot;FunctionalClass1,FunctionalClass2...&quot;</em></strong></dt>
+<dd>
+<p>This value is used during <em>FunctionalClassAtomTypes</em> value of <strong>a, --AtomIdentifierType</strong>
+option. It's a list of comma separated valid functional classes.</p>
+<p>Possible values for atom functional classes are: <em>Ar, CA, H, HBA, HBD, Hal, NI, PI, RA</em>.
+Default value [ Ref 24 ]: <em>HBD,HBA,PI,NI,Ar,Hal</em>.</p>
+<p>The functional class abbreviations correspond to:</p>
+<div class="OptionsBox">
+    HBD: HydrogenBondDonor
+<br/>    HBA: HydrogenBondAcceptor
+<br/>    PI :  PositivelyIonizable
+<br/>    NI : NegativelyIonizable
+<br/>    Ar : Aromatic
+<br/>    Hal : Halogen
+<br/>    H : Hydrophobic
+<br/>    RA : RingAtom
+<br/>    CA : ChainAtom</div>
+<div class="OptionsBox">
+ Functional class atom type specification for an atom corresponds to:</div>
+<div class="OptionsBox">
+    Ar.CA.H.HBA.HBD.Hal.NI.PI.RA</div>
+<p><em>AtomTypes::FunctionalClassAtomTypes</em> module is used to assign functional class atom
+types. It uses following definitions [ Ref 60-61, Ref 65-66 ]:</p>
+<div class="OptionsBox">
+    HydrogenBondDonor: NH, NH2, OH
+<br/>    HydrogenBondAcceptor: N[!H], O
+<br/>    PositivelyIonizable: +, NH2
+<br/>    NegativelyIonizable: -, C(=O)OH, S(=O)OH, P(=O)OH</div>
+</dd>
+<dt><strong><strong>--CompoundID</strong> <em>DataFieldName or LabelPrefixString</em></strong></dt>
+<dd>
+<p>This value is <strong>--CompoundIDMode</strong> specific and indicates how compound ID is generated.</p>
+<p>For <em>DataField</em> value of <strong>--CompoundIDMode</strong> option, it corresponds to datafield label name
+whose value is used as compound ID; otherwise, it's a prefix string used for generating compound
+IDs like LabelPrefixString&lt;Number&gt;. Default value, <em>Cmpd</em>, generates compound IDs which
+look like Cmpd&lt;Number&gt;.</p>
+<p>Examples for <em>DataField</em> value of <strong>--CompoundIDMode</strong>:</p>
+<div class="OptionsBox">
+    MolID
+<br/>    ExtReg</div>
+<p>Examples for <em>LabelPrefix</em> or <em>MolNameOrLabelPrefix</em> value of <strong>--CompoundIDMode</strong>:</p>
+<div class="OptionsBox">
+    Compound</div>
+<p>The value specified above generates compound IDs which correspond to Compound&lt;Number&gt;
+instead of default value of Cmpd&lt;Number&gt;.</p>
+</dd>
+<dt><strong><strong>--CompoundIDLabel</strong> <em>text</em></strong></dt>
+<dd>
+<p>Specify compound ID column label for FP or CSV/TSV text file(s) used during <em>CompoundID</em> value
+of <strong>--DataFieldsMode</strong> option. Default: <em>CompoundID</em>.</p>
+</dd>
+<dt><strong><strong>--CompoundIDMode</strong> <em>DataField | MolName | LabelPrefix | MolNameOrLabelPrefix</em></strong></dt>
+<dd>
+<p>Specify how to generate compound IDs and write to FP or CSV/TSV text file(s) along with generated
+fingerprints for <em>FP | text | all</em> values of <strong>--output</strong> option: use a <em>SDFile(s)</em> datafield value;
+use molname line from <em>SDFile(s)</em>; generate a sequential ID with specific prefix; use combination
+of both MolName and LabelPrefix with usage of LabelPrefix values for empty molname lines.</p>
+<p>Possible values: <em>DataField | MolName | LabelPrefix | MolNameOrLabelPrefix</em>.
+Default: <em>LabelPrefix</em>.</p>
+<p>For <em>MolNameAndLabelPrefix</em> value of <strong>--CompoundIDMode</strong>, molname line in <em>SDFile(s)</em> takes
+precedence over sequential compound IDs generated using <em>LabelPrefix</em> and only empty molname
+values are replaced with sequential compound IDs.</p>
+<p>This is only used for <em>CompoundID</em> value of <strong>--DataFieldsMode</strong> option.</p>
+</dd>
+<dt><strong><strong>--DataFields</strong> <em>&quot;FieldLabel1,FieldLabel2,...&quot;</em></strong></dt>
+<dd>
+<p>Comma delimited list of <em>SDFiles(s)</em> data fields to extract and write to CSV/TSV text file(s) along
+with generated fingerprints for <em>text | all</em> values of <strong>--output</strong> option.</p>
+<p>This is only used for <em>Specify</em> value of <strong>--DataFieldsMode</strong> option.</p>
+<p>Examples:</p>
+<div class="OptionsBox">
+    Extreg
+<br/>    MolID,CompoundName</div>
+</dd>
+<dt><strong><strong>-d, --DataFieldsMode</strong> <em>All | Common | Specify | CompoundID</em></strong></dt>
+<dd>
+<p>Specify how data fields in <em>SDFile(s)</em> are transferred to output CSV/TSV text file(s) along
+with generated fingerprints for <em>text | all</em> values of <strong>--output</strong> option: transfer all SD
+data field; transfer SD data files common to all compounds; extract specified data fields;
+generate a compound ID using molname line, a compound prefix, or a combination of both.
+Possible values: <em>All | Common | specify | CompoundID</em>. Default value: <em>CompoundID</em>.</p>
+</dd>
+<dt><strong><strong>-f, --Filter</strong> <em>Yes | No</em></strong></dt>
+<dd>
+<p>Specify whether to check and filter compound data in SDFile(s). Possible values: <em>Yes or No</em>.
+Default value: <em>Yes</em>.</p>
+<p>By default, compound data is checked before calculating fingerprints and compounds containing
+atom data corresponding to non-element symbols or no atom data are ignored.</p>
+</dd>
+<dt><strong><strong>--FingerprintsLabel</strong> <em>text</em></strong></dt>
+<dd>
+<p>SD data label or text file column label to use for fingerprints string in output SD or
+CSV/TSV text file(s) specified by <strong>--output</strong>. Default value: <em>ExtendedConnectivityFingerprints</em>.</p>
+</dd>
+<dt><strong><strong>-h, --help</strong></strong></dt>
+<dd>
+<p>Print this help message.</p>
+</dd>
+<dt><strong><strong>-k, --KeepLargestComponent</strong> <em>Yes | No</em></strong></dt>
+<dd>
+<p>Generate fingerprints for only the largest component in molecule. Possible values:
+<em>Yes or No</em>. Default value: <em>Yes</em>.</p>
+<p>For molecules containing multiple connected components, fingerprints can be generated
+in two different ways: use all connected components or just the largest connected
+component. By default, all atoms except for the largest connected component are
+deleted before generation of fingerprints.</p>
+</dd>
+<dt><strong><strong>-m, --mode</strong> <em>ExtendedConnectivity | ExtendedConnectivityCount | ExtendedConnectivityBits</em></strong></dt>
+<dd>
+<p>Specify type of extended connectivity fingerprints to generate for molecules in <em>SDFile(s)</em>.
+Possible values: <em>ExtendedConnectivity, ExtendedConnecticityCount or
+ExtendedConnectivityBits</em>. Default value: <em>ExtendedConnectivity</em>.</p>
+<p>For <em>ExtendedConnnectivity</em> value of fingerprints <strong>-m, --mode</strong>, a fingerprint vector
+containing unique atom identifiers constitute the extended connectivity fingerprints
+of a molecule.</p>
+<p>For <em>ExtendedConnnectivityCount</em> value of fingerprints <strong>-m, --mode</strong>, a fingerprint vector
+containing unique atom identifiers along with their count constitute the extended connectivity
+fingerprints of a molecule.</p>
+<p>For <em>ExtendedConnnectivityBits</em> value of fingerprints <strong>-m, --mode</strong>, a fingerprint bit vector
+indicating presence/absence of structurally unique atom identifiers constitute the extended
+connectivity fingerprints of a molecule.</p>
+</dd>
+<dt><strong><strong>-n, --NeighborhoodRadius</strong> <em>number</em></strong></dt>
+<dd>
+<p>Atomic neighborhood radius for generating extended connectivity neighborhoods. Default
+value: <em>2</em>.  Valid values: &gt;= 0. Neighborhood radius of zero correspond to just the list
+of non-hydrogen atoms.</p>
+<p>Default value of <em>2</em> for atomic neighborhood radius generates extended connectivity
+fingerprints corresponding to path length or diameter value of <em>4</em> [ Ref 52b ].</p>
+</dd>
+<dt><strong><strong>--OutDelim</strong> <em>comma | tab | semicolon</em></strong></dt>
+<dd>
+<p>Delimiter for output CSV/TSV text file(s). Possible values: <em>comma, tab, or semicolon</em>
+Default value: <em>comma</em>.</p>
+</dd>
+<dt><strong><strong>--output</strong> <em>SD | FP | text | all</em></strong></dt>
+<dd>
+<p>Type of output files to generate. Possible values: <em>SD, FP, text, or all</em>. Default value: <em>text</em>.</p>
+</dd>
+<dt><strong><strong>-o, --overwrite</strong></strong></dt>
+<dd>
+<p>Overwrite existing files.</p>
+</dd>
+<dt><strong><strong>-q, --quote</strong> <em>Yes | No</em></strong></dt>
+<dd>
+<p>Put quote around column values in output CSV/TSV text file(s). Possible values:
+<em>Yes or No</em>. Default value: <em>Yes</em>.</p>
+</dd>
+<dt><strong><strong>-r, --root</strong> <em>RootName</em></strong></dt>
+<dd>
+<p>New file name is generated using the root: &lt;Root&gt;.&lt;Ext&gt;. Default for new file names:
+&lt;SDFileName&gt;&lt;ExtendedConnectivityFP&gt;.&lt;Ext&gt;. The file type determines &lt;Ext&gt;
+value. The sdf, fpf, csv, and tsv &lt;Ext&gt; values are used for SD, FP, comma/semicolon, and tab
+delimited text files, respectively.This option is ignored for multiple input files.</p>
+</dd>
+<dt><strong><strong>-s, --size</strong> <em>number</em></strong></dt>
+<dd>
+<p>Size of bit-vector to use during generation of fingerprints bit-vector string for
+<em>ExtendedConnectivityBits</em> value of <strong>-m, --mode</strong>. Default value: <em>1024</em>.
+Valid values correspond to any positive integer which satisfies the following criteria:
+power of 2, &gt;= 32 and &lt;= 2 ** 32.</p>
+<p>Examples:</p>
+<div class="OptionsBox">
+   512
+   1024
+   2048</div>
+</dd>
+<dt><strong><strong>--UsePerlCoreRandom</strong> <em>Yes | No</em></strong></dt>
+<dd>
+<p>Specify whether to use Perl CORE::rand or MayaChemTools MathUtil::random function
+during random number generation for setting bits in fingerprints bit-vector strings. Possible
+values: <em>Yes or No</em>. Default value: <em>Yes</em>.</p>
+<p><em>No</em> value option for <strong>--UsePerlCoreRandom</strong> allows the generation of fingerprints
+bit-vector strings which are same across different platforms.</p>
+<p>The random number generator implemented in MayaChemTools is a variant of
+linear congruential generator (LCG) as described by Miller et al. [ Ref 120 ].
+It is also referred to as Lehmer random number generator or Park-Miller
+random number generator.</p>
+<p>Unlike Perl's core random number generator function rand, the random number
+generator implemented in MayaChemTools, MathUtil::random,  generates consistent
+random values across different platforms for a specific random seed and leads
+to generation of portable fingerprints bit-vector strings.</p>
+</dd>
+<dt><strong><strong>-v, --VectorStringFormat</strong> <em>ValuesString | IDsAndValuesString | IDsAndValuesPairsString | ValuesAndIDsString | ValuesAndIDsPairsString</em></strong></dt>
+<dd>
+<p>Format of fingerprints vector string data in output SD, FP or CSV/TSV text file(s) specified by
+<strong>--output</strong> used during &lt;ExtendedConnectivityCount&gt; value of <strong>-m, --mode</strong> option. Possible
+values: <em>ValuesString, IDsAndValuesString | IDsAndValuesPairsString | ValuesAndIDsString |
+ValuesAndIDsPairsString</em>.</p>
+<p>Default value during &lt;ExtendedConnectivityCount&gt; value of <strong>-m, --mode</strong> option:
+<em>IDsAndValuesString</em>.</p>
+<p>Default value during &lt;ExtendedConnectivity&gt; value of <strong>-m, --mode</strong> option: <em>ValuesString</em>.</p>
+<p>Examples:</p>
+<div class="OptionsBox">
+    FingerprintsVector;ExtendedConnectivity:AtomicInvariantsAtomTypes:Radi
+<br/>    us2;60;AlphaNumericalValues;ValuesString;73555770 333564680 352413391
+<br/>    666191900 1001270906 1371674323 1481469939 1977749791 2006158649 21414
+<br/>    08799 49532520 64643108 79385615 96062769 273726379 564565671 85514103
+<br/>    5 906706094 988546669 1018231313 1032696425 1197507444 1331250018 1338
+<br/>    532734 1455473691 1607485225 1609687129 1631614296 1670251330 17303...</div>
+<div class="OptionsBox">
+    FingerprintsVector;ExtendedConnectivityCount:AtomicInvariantsAtomTypes
+<br/>    :Radius2;60;NumericalValues;IDsAndValuesString;73555770 333564680 3524
+<br/>    13391 666191900 1001270906 1371674323 1481469939 1977749791 2006158649
+<br/>    2141408799 49532520 64643108 79385615 96062769 273726379 564565671...;
+<br/>    3 2 1 1 14 1 2 10 4 3 1 1 1 1 2 1 2 1 1 1 2 3 1 1 2 1 3 3 8 2 2 2 6 2
+<br/>    1 2 1 1 2 1 1 1 2 1 1 2 1 2 1 1 1 1 1 1 1 1 1 2 1 1</div>
+</dd>
+<dt><strong><strong>-w, --WorkingDir</strong> <em>DirName</em></strong></dt>
+<dd>
+<p>Location of working directory. Default: current directory.</p>
+</dd>
+</dl>
+<p>
+</p>
+<h2>EXAMPLES</h2>
+<p>To generate extended connectivity fingerprints corresponding to neighborhood radius up to
+2 using atomic invariants atom types in vector string format and create a SampleECAIFP.csv
+file containing sequential compound IDs along with fingerprints vector strings data, type:</p>
+<div class="ExampleBox">
+    % ExtendedConnectivityFingerprints.pl -r SampleECAIFP -o Sample.sdf</div>
+<p>To generate extended connectivity count fingerprints corresponding to neighborhood radius up to
+2 using atomic invariants atom types in vector string format and create a SampleECAIFP.csv
+file containing sequential compound IDs along with fingerprints vector strings data, type:</p>
+<div class="ExampleBox">
+    % ExtendedConnectivityFingerprints.pl -m ExtendedConnectivityCount
+      -r SampleECAIFP -o Sample.sdf</div>
+<p>To generate extended connectivity bits fingerprints as hexadecimal bit-string corresponding to
+neighborhood radius up to 2 using atomic invariants atom types in vector string format and
+create a SampleECAIFP.csv file containing sequential compound IDs along with fingerprints
+vector strings data, type:</p>
+<div class="ExampleBox">
+    % ExtendedConnectivityFingerprints.pl -m ExtendedConnectivityBits
+      -r SampleECAIFP -o Sample.sdf</div>
+<p>To generate extended connectivity bits fingerprints as binary bit-string corresponding to
+neighborhood radius up to 2 using atomic invariants atom types in vector string format and
+create a SampleECAIFP.csv file containing sequential compound IDs along with fingerprints
+vector strings data, type:</p>
+<div class="ExampleBox">
+    % ExtendedConnectivityFingerprints.pl -m ExtendedConnectivityBits
+      --BitStringFormat BinaryString -r SampleECAIFP -o Sample.sdf</div>
+<p>To generate extended connectivity fingerprints corresponding to neighborhood radius up to
+2 using atomic invariants atom types in vector string format and create SampleECAIFP.sdf, SampleECAIFP.fpf
+and SampleECAIFP.csv files containing sequential compound IDs in CSV file along with fingerprints
+vector strings data, type:</p>
+<div class="ExampleBox">
+    % ExtendedConnectivityFingerprints.pl --output all -r SampleECAIFP
+      -o Sample.sdf</div>
+<p>To generate extended connectivity count fingerprints corresponding to neighborhood radius up to
+2 using atomic invariants atom types in vector string format and create SampleECAIFP.sdf, SampleECAIFP.fpf
+and SampleECAIFP.csv files containing sequential compound IDs in CSV file along with fingerprints
+vector strings data, type:</p>
+<div class="ExampleBox">
+    % ExtendedConnectivityFingerprints.pl -m ExtendedConnectivityCount
+      --output all -r SampleECAIFP -o Sample.sdf</div>
+<p>To generate extended connectivity fingerprints corresponding to neighborhood radius up to
+2 using functional class atom types in vector string format and create a SampleECFCFP.csv file
+containing sequential compound IDs along with fingerprints vector strings data, type:</p>
+<div class="ExampleBox">
+    % ExtendedConnectivityFingerprints.pl -a FunctionalClassAtomTypes
+      -r SampleECFCFP -o Sample.sdf</div>
+<p>To generate extended connectivity fingerprints corresponding to neighborhood radius up to
+2 using DREIDING atom types in vector string format and create a SampleECFP.csv file
+containing sequential compound IDs along with fingerprints vector strings data, type:</p>
+<div class="ExampleBox">
+    % ExtendedConnectivityFingerprints.pl -a DREIDINGAtomTypes
+      -r SampleECFP -o Sample.sdf</div>
+<p>To generate extended connectivity fingerprints corresponding to neighborhood radius up to
+2 using E-state atom types in vector string format and create a SampleECFP.csv file
+containing sequential compound IDs along with fingerprints vector strings data, type:</p>
+<div class="ExampleBox">
+    % ExtendedConnectivityFingerprints.pl -a EStateAtomTypes
+      -r SampleECFP -o Sample.sdf</div>
+<p>To generate extended connectivity fingerprints corresponding to neighborhood radius up to
+2 using MMFF94 atom types in vector string format and create a SampleECFP.csv file
+containing sequential compound IDs along with fingerprints vector strings data, type:</p>
+<div class="ExampleBox">
+    % ExtendedConnectivityFingerprints.pl -a MMFF94AtomTypes
+      -r SampleECFP -o Sample.sdf</div>
+<p>To generate extended connectivity fingerprints corresponding to neighborhood radius up to
+2 using SLogP atom types in vector string format and create a SampleECFP.csv file
+containing sequential compound IDs along with fingerprints vector strings data, type:</p>
+<div class="ExampleBox">
+    % ExtendedConnectivityFingerprints.pl -a SLogPAtomTypes
+      -r SampleECFP -o Sample.sdf</div>
+<p>To generate extended connectivity fingerprints corresponding to neighborhood radius up to
+2 using SYBYL atom types in vector string format and create a SampleECFP.csv file
+containing sequential compound IDs along with fingerprints vector strings data, type:</p>
+<div class="ExampleBox">
+    % ExtendedConnectivityFingerprints.pl -a SYBYLAtomTypes
+      -r SampleECFP -o Sample.sdf</div>
+<p>To generate extended connectivity fingerprints corresponding to neighborhood radius up to
+2 using TPSA atom types in vector string format and create a SampleECFP.csv file
+containing sequential compound IDs along with fingerprints vector strings data, type:</p>
+<div class="ExampleBox">
+    % ExtendedConnectivityFingerprints.pl -a TPSAAtomTypes
+      -r SampleECFP -o Sample.sdf</div>
+<p>To generate extended connectivity fingerprints corresponding to neighborhood radius up to
+2 using UFF atom types in vector string format and create a SampleECFP.csv file
+containing sequential compound IDs along with fingerprints vector strings data, type:</p>
+<div class="ExampleBox">
+    % ExtendedConnectivityFingerprints.pl -a UFFAtomTypes
+      -r SampleECFP -o Sample.sdf</div>
+<p>To generate extended connectivity fingerprints corresponding to neighborhood radius up to
+3 using atomic invariants atom types in vector string format and create a SampleECAIFP.csv
+file containing sequential compound IDs along with fingerprints vector strings data, type:</p>
+<div class="ExampleBox">
+    % ExtendedConnectivityFingerprints.pl -a AtomicInvariantsAtomTypes -n 3
+      -r SampleECAIFP -o Sample.sdf</div>
+<p>To generate extended connectivity fingerprints corresponding to neighborhood radius up to
+3 using functional class atom types in vector string format and create a SampleECFCFP.csv file
+containing sequential compound IDs along with fingerprints vector strings data, type:</p>
+<div class="ExampleBox">
+    % ExtendedConnectivityFingerprints.pl -a FunctionalClassAtomTypes -n 3
+      -r SampleECFCFP -o Sample.sdf</div>
+<p>To generate extended connectivity fingerprints corresponding to neighborhood radius up to
+2 using only AS,X atomic invariants atom types in vector string format and create a
+SampleECAIFP.csv file containing sequential compound IDs along with fingerprints vector
+strings data, type:</p>
+<div class="ExampleBox">
+    % ExtendedConnectivityFingerprints.pl -a AtomicInvariantsAtomTypes
+      --AtomicInvariantsToUse &quot;AS,X&quot; -r SampleECAIFP -o Sample.sdf</div>
+<p>To generate extended connectivity fingerprints corresponding to neighborhood radius up to
+2 using only HBD,HBA functional class atom types in vector string format and create a
+SampleECFCFP.csv file containing sequential compound IDs along with fingerprints vector
+strings data, type:</p>
+<div class="ExampleBox">
+    % ExtendedConnectivityFingerprints.pl -a FunctionalClassAtomTypes
+      --FunctionalClassesToUse &quot;HBD,HBA&quot; -r SampleECFCFP -o Sample.sdf</div>
+<p>To generate extended connectivity fingerprints corresponding to neighborhood radius up to
+2 using atomic invariants atom types in vector string format and create a SampleECAIFP.csv
+file containing compound ID from molecule name line along with fingerprints vector strings
+data, type:</p>
+<div class="ExampleBox">
+    % ExtendedConnectivityFingerprints.pl -a AtomicInvariantsAtomTypes
+      --DataFieldsMode CompoundID -CompoundIDMode MolName
+      -r SampleECAIFP -o Sample.sdf</div>
+<p>To generate extended connectivity fingerprints corresponding to neighborhood radius up to
+2 using functional class atom types in vector string format and create a SampleECFCFP.csv
+file containing compound IDs using specified data field along with fingerprints vector strings
+data, type:</p>
+<div class="ExampleBox">
+    % ExtendedConnectivityFingerprints.pl -a FunctionalClassAtomTypes
+      --DataFieldsMode CompoundID -CompoundIDMode DataField --CompoundID Mol_ID
+      -r SampleECFCFP -o Sample.sdf</div>
+<p>To generate extended connectivity fingerprints corresponding to neighborhood radius up to
+2 using atomic invariants atom types in vector string format and create a SampleECAIFP.tsv
+file containing compound ID using combination of molecule name line and an explicit compound
+prefix along with fingerprints vector strings data, type:</p>
+<div class="ExampleBox">
+    % ExtendedConnectivityFingerprints.pl -a AtomicInvariantsAtomTypes
+      --DataFieldsMode CompoundID -CompoundIDMode MolnameOrLabelPrefix
+      --CompoundID Cmpd --CompoundIDLabel MolID -r SampleECAIFP -o Sample.sdf</div>
+<p>To generate extended connectivity fingerprints corresponding to neighborhood radius up to
+2 using functional class atom types in vector string format and create a SampleECFCFP.csv
+file containing specific data fields columns along with fingerprints vector strings
+data, type:</p>
+<div class="ExampleBox">
+    % ExtendedConnectivityFingerprints.pl -a FunctionalClassAtomTypes
+      --DataFieldsMode  Specify --DataFields Mol_ID -r SampleECFCFP
+      -o Sample.sdf</div>
+<p>To generate extended connectivity fingerprints corresponding to neighborhood radius up to
+2 using atomic invariants atom types in vector string format and create a SampleECAIFP.tsv
+file containing common data fields columns along with fingerprints vector strings data, type:</p>
+<div class="ExampleBox">
+    % ExtendedConnectivityFingerprints.pl -a AtomicInvariantsAtomTypes
+      --DataFieldsMode Common -r SampleECAIFP -o Sample.sdf</div>
+<p>To generate extended connectivity fingerprints corresponding to neighborhood radius up to
+2 using functional class atom types in vector string format and create SampleECFCFP.sdf, SampleECFCFP.fpf
+and SampleECFCFP.csv files containing all data fields columns in CSV file along with fingerprints
+vector strings data, type:</p>
+<div class="ExampleBox">
+    % ExtendedConnectivityFingerprints.pl -a FunctionalClassAtomTypes
+      --DataFieldsMode All  --output all -r SampleECFCFP
+      -o Sample.sdf</div>
+<p>
+</p>
+<h2>AUTHOR</h2>
+<p><a href="mailto:msud@san.rr.com">Manish Sud</a></p>
+<p>
+</p>
+<h2>SEE ALSO</h2>
+<p><a href="./InfoFingerprintsFiles.html">InfoFingerprintsFiles.pl</a>,&nbsp<a href="./SimilarityMatricesFingerprints.html">SimilarityMatricesFingerprints.pl</a>,&nbsp<a href="./AtomNeighborhoodsFingerprints.html">AtomNeighborhoodsFingerprints.pl</a>,&nbsp
+<a href="./MACCSKeysFingerprints.html">MACCSKeysFingerprints.pl</a>,&nbsp<a href="./PathLengthFingerprints.html">PathLengthFingerprints.pl</a>,&nbsp
+<a href="./TopologicalAtomPairsFingerprints.html">TopologicalAtomPairsFingerprints.pl</a>,&nbsp<a href="./TopologicalAtomTorsionsFingerprints.html">TopologicalAtomTorsionsFingerprints.pl</a>,&nbsp
+<a href="./TopologicalPharmacophoreAtomPairsFingerprints.html">TopologicalPharmacophoreAtomPairsFingerprints.pl</a>,&nbsp<a href="./TopologicalPharmacophoreAtomTripletsFingerprints.html">TopologicalPharmacophoreAtomTripletsFingerprints.pl</a>
+</p>
+<p>
+</p>
+<h2>COPYRIGHT</h2>
+<p>Copyright (C) 2015 Manish Sud. All rights reserved.</p>
+<p>This file is part of MayaChemTools.</p>
+<p>MayaChemTools is free software; you can redistribute it and/or modify it under
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