diff docs/scripts/man1/ExtendedConnectivityFingerprints.1 @ 0:4816e4a8ae95 draft default tip

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author deepakjadmin
date Wed, 20 Jan 2016 09:23:18 -0500
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+.rm #[ #] #H #V #F C
+.\" ========================================================================
+.\"
+.IX Title "EXTENDEDCONNECTIVITYFINGERPRINTS 1"
+.TH EXTENDEDCONNECTIVITYFINGERPRINTS 1 "2015-03-29" "perl v5.14.2" "MayaChemTools"
+.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
+.\" way too many mistakes in technical documents.
+.if n .ad l
+.nh
+.SH "NAME"
+ExtendedConnectivityFingerprints.pl \- Generate extended connectivity fingerprints for SD files
+.SH "SYNOPSIS"
+.IX Header "SYNOPSIS"
+ExtendedConnectivityFingerprints.pl SDFile(s)...
+.PP
+ExtendedConnectivityFingerprints.pl [\fB\-\-AromaticityModel\fR \fIAromaticityModelType\fR]
+[\fB\-a, \-\-AtomIdentifierType\fR \fIAtomicInvariantsAtomTypes\fR]
+[\fB\-\-AtomicInvariantsToUse\fR \fI\*(L"AtomicInvariant,AtomicInvariant...\*(R"\fR]
+[\fB\-\-FunctionalClassesToUse\fR \fI\*(L"FunctionalClass1,FunctionalClass2...\*(R"\fR]
+[\fB\-\-BitsOrder\fR \fIAscending | Descending\fR] [\fB\-b, \-\-BitStringFormat\fR \fIBinaryString | HexadecimalString\fR]
+[\fB\-\-CompoundID\fR \fIDataFieldName or LabelPrefixString\fR] [\fB\-\-CompoundIDLabel\fR \fItext\fR]
+[\fB\-\-CompoundIDMode\fR] [\fB\-\-DataFields\fR \fI\*(L"FieldLabel1,FieldLabel2,...\*(R"\fR]
+[\fB\-d, \-\-DataFieldsMode\fR \fIAll | Common | Specify | CompoundID\fR]  [\fB\-f, \-\-Filter\fR \fIYes | No\fR]
+[\fB\-\-FingerprintsLabel\fR \fItext\fR] [\fB\-h, \-\-help\fR] [\fB\-k, \-\-KeepLargestComponent\fR \fIYes | No\fR]
+[\fB\-m, \-\-mode\fR \fIExtendedConnectivity | ExtendedConnecticityCount | ExtendedConnecticityBits\fR]
+[\fB\-n, \-\-NeighborhoodRadius\fR \fInumber\fR] [\fB\-\-OutDelim\fR \fIcomma | tab | semicolon\fR] [\fB\-\-output\fR \fI\s-1SD\s0 | \s-1FP\s0 | text | all\fR]
+[\fB\-o, \-\-overwrite\fR] [\fB\-q, \-\-quote\fR \fIYes | No\fR] [\fB\-r, \-\-root\fR \fIRootName\fR] [\fB\-s, \-\-size\fR \fInumber\fR]
+[\fB\-\-UsePerlCoreRandom\fR \fIYes | No\fR]
+[\fB\-v, \-\-VectorStringFormat\fR \fIIDsAndValuesString | IDsAndValuesPairsString | ValuesAndIDsString | ValuesAndIDsPairsString\fR]
+[\fB\-w, \-\-WorkingDir\fR dirname] SDFile(s)...
+.SH "DESCRIPTION"
+.IX Header "DESCRIPTION"
+Generate extended connectivity fingerprints [ Ref 48, Ref 52 ] for \fISDFile(s)\fR and create appropriate
+\&\s-1SD\s0, \s-1FP\s0 or \s-1CSV/TSV\s0 text file(s) containing fingerprints vector strings corresponding to molecular fingerprints.
+.PP
+Multiple SDFile names are separated by spaces. The valid file extensions are \fI.sdf\fR
+and \fI.sd\fR. All other file names are ignored. All the \s-1SD\s0 files in a current directory
+can be specified either by \fI*.sdf\fR or the current directory name.
+.PP
+The current release of MayaChemTools supports generation of extended connectivity fingerprints
+corresponding to following \fB\-a, \-\-AtomIdentifierTypes\fR:
+.PP
+.Vb 3
+\&    AtomicInvariantsAtomTypes, DREIDINGAtomTypes, EStateAtomTypes,
+\&    FunctionalClassAtomTypes, MMFF94AtomTypes, SLogPAtomTypes,
+\&    SYBYLAtomTypes, TPSAAtomTypes, UFFAtomTypes
+.Ve
+.PP
+Based on values specified for \fB\-a, \-\-AtomIdentifierType\fR, \fB\-\-AtomicInvariantsToUse\fR
+and \fB\-\-FunctionalClassesToUse\fR, 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
+\&\fBTextUtil::HashCode\fR function. The duplicate atom identifiers are removed.
+.PP
+For \fB\-n, \-\-NeighborhoodRadius\fR value of \fI0\fR, the initial set of unique atom identifiers comprises
+the molecule fingerprints. Otherwise, atom neighborhoods are generated for each non-hydrogen
+atom up to specified \fB\-n, \-\-NeighborhoodRadius\fR 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.
+.PP
+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 \fBTextUtil::HashCode\fR 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.
+.PP
+For \fIExtendedConnnectivity\fR value of fingerprints \fB\-m, \-\-mode\fR, the duplicate identifiers are
+removed from the list and the unique atom identifiers constitute the extended connectivity
+fingerprints of a molecule.
+.PP
+For \fIExtendedConnnectivityCount\fR value of fingerprints \fB\-m, \-\-mode\fR, 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.
+.PP
+For \fIExtendedConnectivityBits\fR value of fingerprints \fB\-m, \-\-mode\fR, the unique atom identifiers
+are used as a random number seed to generate a random integer value between 0 and \fB\-\-Size\fR which
+in turn is used to set corresponding bits in the fingerprint bit-vector string.
+.PP
+Example of \fI\s-1SD\s0\fR file containing extended connectivity fingerprints string data:
+.PP
+.Vb 10
+\&    ... ...
+\&    ... ...
+\&    $$$$
+\&    ... ...
+\&    ... ...
+\&    ... ...
+\&    41 44  0  0  0  0  0  0  0  0999 V2000
+\&     \-3.3652    1.4499    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
+\&    ... ...
+\&    2  3  1  0  0  0  0
+\&    ... ...
+\&    M  END
+\&    >  <CmpdID>
+\&    Cmpd1
+\&
+\&    >  <ExtendedConnectivityFingerprints>
+\&    FingerprintsVector;ExtendedConnectivity:AtomicInvariantsAtomTypes:Radiu
+\&    s2;60;AlphaNumericalValues;ValuesString;73555770 333564680 352413391 66
+\&    6191900 1001270906 1371674323 1481469939 1977749791 2006158649 21414087
+\&    99 49532520 64643108 79385615 96062769 273726379 564565671 855141035 90
+\&    6706094 988546669 1018231313 1032696425 1197507444 1331250018 133853...
+\&
+\&    $$$$
+\&    ... ...
+\&    ... ...
+.Ve
+.PP
+Example of \fI\s-1FP\s0\fR file containing extended connectivity fingerprints string data:
+.PP
+.Vb 10
+\&    #
+\&    # Package = MayaChemTools 7.4
+\&    # Release Date = Oct 21, 2010
+\&    #
+\&    # TimeStamp = Fri Mar 11 14:43:57 2011
+\&    #
+\&    # FingerprintsStringType = FingerprintsVector
+\&    #
+\&    # Description = ExtendedConnectivity:AtomicInvariantsAtomTypes:Radius2
+\&    # VectorStringFormat = ValuesString
+\&    # VectorValuesType = AlphaNumericalValues
+\&    #
+\&    Cmpd1 60;73555770 333564680 352413391 666191900 1001270906 137167432...
+\&    Cmpd2 41;73555770 333564680 666191900 1142173602 1363635752 14814699...
+\&    ... ...
+\&    ... ..
+.Ve
+.PP
+Example of \s-1CSV\s0 \fIText\fR file containing extended connectivity fingerprints string data:
+.PP
+.Vb 8
+\&    "CompoundID","ExtendedConnectivityFingerprints"
+\&    "Cmpd1","FingerprintsVector;ExtendedConnectivity:AtomicInvariantsAtomTy
+\&    pes:Radius2;60;AlphaNumericalValues;ValuesString;73555770 333564680 352
+\&    413391 666191900 1001270906 1371674323 1481469939 1977749791 2006158649
+\&    2141408799 49532520 64643108 79385615 96062769 273726379 564565671 8551
+\&    41035 906706094 988546669 1018231313 1032696425 1197507444 13312500..."
+\&    ... ...
+\&    ... ...
+.Ve
+.PP
+The current release of MayaChemTools generates the following types of extended connectivity
+fingerprints vector strings:
+.PP
+.Vb 6
+\&    FingerprintsVector;ExtendedConnectivity:AtomicInvariantsAtomTypes:Radi
+\&    us2;60;AlphaNumericalValues;ValuesString;73555770 333564680 352413391
+\&    666191900 1001270906 1371674323 1481469939 1977749791 2006158649 21414
+\&    08799 49532520 64643108 79385615 96062769 273726379 564565671 85514103
+\&    5 906706094 988546669 1018231313 1032696425 1197507444 1331250018 1338
+\&    532734 1455473691 1607485225 1609687129 1631614296 1670251330 17303...
+\&
+\&    FingerprintsVector;ExtendedConnectivityCount:AtomicInvariantsAtomTypes
+\&    :Radius2;60;NumericalValues;IDsAndValuesString;73555770 333564680 3524
+\&    13391 666191900 1001270906 1371674323 1481469939 1977749791 2006158649
+\&    2141408799 49532520 64643108 79385615 96062769 273726379 564565671...;
+\&    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
+\&    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
+\&
+\&    FingerprintsBitVector;ExtendedConnectivityBits:AtomicInvariantsAtomTyp
+\&    es:Radius2;1024;BinaryString;Ascending;0000000000000000000000000000100
+\&    0000000001010000000110000011000000000000100000000000000000000000100001
+\&    1000000110000000000000000000000000010011000000000000000000000000010000
+\&    0000000000000000000000000010000000000000000001000000000000000000000000
+\&    0000000000010000100001000000000000101000000000000000100000000000000...
+\&
+\&    FingerprintsBitVector;ExtendedConnectivityBits:AtomicInvariantsAtomTyp
+\&    es:Radius2;1024;HexadecimalString;Ascending;000000010050c0600800000803
+\&    0300000091000004000000020000100000000124008200020000000040020000000000
+\&    2080000000820040010020000000008040000000000080001000000000400000000000
+\&    4040000090000061010000000800200000000000001400000000020080000000000020
+\&    00008020200000408000
+\&
+\&    FingerprintsVector;ExtendedConnectivity:FunctionalClassAtomTypes:Radiu
+\&    s2;57;AlphaNumericalValues;ValuesString;24769214 508787397 850393286 8
+\&    62102353 981185303 1231636850 1649386610 1941540674 263599683 32920567
+\&    1 571109041 639579325 683993318 723853089 810600886 885767127 90326012
+\&    7 958841485 981022393 1126908698 1152248391 1317567065 1421489994 1455
+\&    632544 1557272891 1826413669 1983319256 2015750777 2029559552 20404...
+\&
+\&    FingerprintsVector;ExtendedConnectivityCount:FunctionalClassAtomTypes:
+\&    Radius2;57;NumericalValues;IDsAndValuesString;24769214 508787397 85039
+\&    3286 862102353 981185303 1231636850 1649386610 1941540674 263599683 32
+\&    9205671 571109041 639579325 683993318 723853089 810600886 885767127...;
+\&    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
+\&    1 2 1 1 2 2 1 1 2 1 1 1 2 1 1 2 1 1 1 1 1 1 1
+\&
+\&    FingerprintsBitVector;ExtendedConnectivityBits:FunctionalClassAtomType
+\&    s:Radius2;1024;BinaryString;Ascending;00000000000000000000100000000000
+\&    0000000001000100000000001000000000000000000000000000000000101000000010
+\&    0000001000000000010000000000000000000000000000000000000000000000000100
+\&    0000000000001000000000000001000000000001001000000000000000000000000000
+\&    0000000000000000100000000000001000000000000000000000000000000000000...
+\&
+\&    FingerprintsVector;ExtendedConnectivity:DREIDINGAtomTypes:Radius2;56;A
+\&    lphaNumericalValues;ValuesString;280305427 357928343 721790579 1151822
+\&    898 1207111054 1380963747 1568213839 1603445250 4559268 55012922 18094
+\&    0813 335715751 534801009 684609658 829361048 972945982 999881534 10076
+\&    55741 1213692591 1222032501 1224517934 1235687794 1244268533 152812070
+\&    0 1629595024 1856308891 1978806036 2001865095 2096549435 172675415 ...
+\&
+\&    FingerprintsVector;ExtendedConnectivity:EStateAtomTypes:Radius2;62;Alp
+\&    haNumericalValues;ValuesString;25189973 528584866 662581668 671034184
+\&    926543080 1347067490 1738510057 1759600920 2034425745 2097234755 21450
+\&    44754 96779665 180364292 341712110 345278822 386540408 387387308 50430
+\&    1706 617094135 771528807 957666640 997798220 1158349170 1291258082 134
+\&    1138533 1395329837 1420277211 1479584608 1486476397 1487556246 1566...
+\&
+\&    FingerprintsVector;ExtendedConnectivity:MMFF94AtomTypes:Radius2;64;Alp
+\&    haNumericalValues;ValuesString;224051550 746527773 998750766 103704190
+\&    2 1239701709 1248384926 1259447756 1521678386 1631549126 1909437580 20
+\&    37095052 2104274756 2117729376 8770364 31445800 81450228 314289324 344
+\&    041929 581773587 638555787 692022098 811840536 929651561 936421792 988
+\&    636432 1048624296 1054288509 1369487579 1454058929 1519352190 17271...
+\&
+\&    FingerprintsVector;ExtendedConnectivity:SLogPAtomTypes:Radius2;71;Alph
+\&    aNumericalValues;ValuesString;78989290 116507218 489454042 888737940 1
+\&    162561799 1241797255 1251494264 1263717127 1471206899 1538061784 17654
+\&    07295 1795036542 1809833874 2020454493 2055310842 2117729376 11868981
+\&    56731842 149505242 184525155 196984339 288181334 481409282 556716568 6
+\&    41915747 679881756 721736571 794256218 908276640 992898760 10987549...
+\&
+\&    FingerprintsVector;ExtendedConnectivity:SYBYLAtomTypes:Radius2;58;Alph
+\&    aNumericalValues;ValuesString;199957044 313356892 455463968 465982819
+\&    1225318176 1678585943 1883366064 1963811677 2117729376 113784599 19153
+\&    8837 196629033 263865277 416380653 477036669 681527491 730724924 90906
+\&    5537 1021959189 1133014972 1174311016 1359441203 1573452838 1661585138
+\&    1668649038 1684198062 1812312554 1859266290 1891651106 2072549404 ...
+\&
+\&    FingerprintsVector;ExtendedConnectivity:TPSAAtomTypes:Radius2;47;Alpha
+\&    NumericalValues;ValuesString;20818206 259344053 862102353 1331904542 1
+\&    700688206 265614156 363161397 681332588 810600886 885767127 950172500
+\&    951454814 1059668746 1247054493 1382302230 1399502637 1805025917 19189
+\&    39561 2114677228 2126402271 8130483 17645742 32278373 149975755 160327
+\&    654 256360355 279492740 291251259 317592700 333763396 972105960 101...
+\&
+\&    FingerprintsVector;ExtendedConnectivity:UFFAtomTypes:Radius2;56;AlphaN
+\&    umericalValues;ValuesString;280305427 357928343 721790579 1151822898 1
+\&    207111054 1380963747 1568213839 1603445250 4559268 55012922 180940813
+\&    335715751 534801009 684609658 829361048 972945982 999881534 1007655741
+\&    1213692591 1222032501 1224517934 1235687794 1244268533 1528120700 162
+\&    9595024 1856308891 1978806036 2001865095 2096549435 172675415 18344...
+.Ve
+.SH "OPTIONS"
+.IX Header "OPTIONS"
+.IP "\fB\-\-AromaticityModel\fR \fIMDLAromaticityModel | TriposAromaticityModel | MMFFAromaticityModel | ChemAxonBasicAromaticityModel | ChemAxonGeneralAromaticityModel | DaylightAromaticityModel | MayaChemToolsAromaticityModel\fR" 4
+.IX Item "--AromaticityModel MDLAromaticityModel | TriposAromaticityModel | MMFFAromaticityModel | ChemAxonBasicAromaticityModel | ChemAxonGeneralAromaticityModel | DaylightAromaticityModel | MayaChemToolsAromaticityModel"
+Specify aromaticity model to use during detection of aromaticity. Possible values in the current
+release are: \fIMDLAromaticityModel, TriposAromaticityModel, MMFFAromaticityModel,
+ChemAxonBasicAromaticityModel, ChemAxonGeneralAromaticityModel, DaylightAromaticityModel
+or MayaChemToolsAromaticityModel\fR. Default value: \fIMayaChemToolsAromaticityModel\fR.
+.Sp
+The supported aromaticity model names along with model specific control parameters
+are defined in \fBAromaticityModelsData.csv\fR, which is distributed with the current release
+and is available under \fBlib/data\fR directory. \fBMolecule.pm\fR module retrieves data from
+this file during class instantiation and makes it available to method \fBDetectAromaticity\fR
+for detecting aromaticity corresponding to a specific model.
+.IP "\fB\-a, \-\-AtomIdentifierType\fR \fIAtomicInvariantsAtomTypes | FunctionalClassAtomTypes | DREIDINGAtomTypes | EStateAtomTypes | MMFF94AtomTypes | SLogPAtomTypes | SYBYLAtomTypes | TPSAAtomTypes | UFFAtomTypes\fR" 4
+.IX Item "-a, --AtomIdentifierType AtomicInvariantsAtomTypes | FunctionalClassAtomTypes | DREIDINGAtomTypes | EStateAtomTypes | MMFF94AtomTypes | SLogPAtomTypes | SYBYLAtomTypes | TPSAAtomTypes | UFFAtomTypes"
+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: \fIAtomicInvariantsAtomTypes, FunctionalClassAtomTypes,
+DREIDINGAtomTypes, EStateAtomTypes, MMFF94AtomTypes, SLogPAtomTypes, SYBYLAtomTypes,
+TPSAAtomTypes, UFFAtomTypes\fR. Default value: \fIAtomicInvariantsAtomTypes\fR.
+.ie n .IP "\fB\-\-AtomicInvariantsToUse\fR \fI""AtomicInvariant,AtomicInvariant...""\fR" 4
+.el .IP "\fB\-\-AtomicInvariantsToUse\fR \fI``AtomicInvariant,AtomicInvariant...''\fR" 4
+.IX Item "--AtomicInvariantsToUse AtomicInvariant,AtomicInvariant..."
+This value is used during \fIAtomicInvariantsAtomTypes\fR value of \fBa, \-\-AtomIdentifierType\fR
+option. It's a list of comma separated valid atomic invariant atom types.
+.Sp
+Possible values for atomic invarians are: \fI\s-1AS\s0, X, \s-1BO\s0,  \s-1LBO\s0, \s-1SB\s0, \s-1DB\s0, \s-1TB\s0,
+H, Ar, \s-1RA\s0, \s-1FC\s0, \s-1MN\s0, \s-1SM\s0\fR. Default value [ Ref 24 ]: \fI\s-1AS\s0,X,BO,H,FC,MN\fR.
+.Sp
+The atomic invariants abbreviations correspond to:
+.Sp
+.Vb 1
+\&    AS = Atom symbol corresponding to element symbol
+\&
+\&    X<n>   = Number of non\-hydrogen atom neighbors or heavy atoms
+\&    BO<n> = Sum of bond orders to non\-hydrogen atom neighbors or heavy atoms
+\&    LBO<n> = Largest bond order of non\-hydrogen atom neighbors or heavy atoms
+\&    SB<n> = Number of single bonds to non\-hydrogen atom neighbors or heavy atoms
+\&    DB<n> = Number of double bonds to non\-hydrogen atom neighbors or heavy atoms
+\&    TB<n> = Number of triple bonds to non\-hydrogen atom neighbors or heavy atoms
+\&    H<n>   = Number of implicit and explicit hydrogens for atom
+\&    Ar     = Aromatic annotation indicating whether atom is aromatic
+\&    RA     = Ring atom annotation indicating whether atom is a ring
+\&    FC<+n/\-n> = Formal charge assigned to atom
+\&    MN<n> = Mass number indicating isotope other than most abundant isotope
+\&    SM<n> = Spin multiplicity of atom. Possible values: 1 (singlet), 2 (doublet) or
+\&            3 (triplet)
+.Ve
+.Sp
+Atom type generated by AtomTypes::AtomicInvariantsAtomTypes class corresponds to:
+.Sp
+.Vb 1
+\&    AS.X<n>.BO<n>.LBO<n>.<SB><n>.<DB><n>.<TB><n>.H<n>.Ar.RA.FC<+n/\-n>.MN<n>.SM<n>
+.Ve
+.Sp
+Except for \s-1AS\s0 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.
+.Sp
+In addition to usage of abbreviations for specifying atomic invariants, the following descriptive words
+are also allowed:
+.Sp
+.Vb 12
+\&    X : NumOfNonHydrogenAtomNeighbors or NumOfHeavyAtomNeighbors
+\&    BO : SumOfBondOrdersToNonHydrogenAtoms or SumOfBondOrdersToHeavyAtoms
+\&    LBO : LargestBondOrderToNonHydrogenAtoms or LargestBondOrderToHeavyAtoms
+\&    SB :  NumOfSingleBondsToNonHydrogenAtoms or NumOfSingleBondsToHeavyAtoms
+\&    DB : NumOfDoubleBondsToNonHydrogenAtoms or NumOfDoubleBondsToHeavyAtoms
+\&    TB : NumOfTripleBondsToNonHydrogenAtoms or NumOfTripleBondsToHeavyAtoms
+\&    H :  NumOfImplicitAndExplicitHydrogens
+\&    Ar : Aromatic
+\&    RA : RingAtom
+\&    FC : FormalCharge
+\&    MN : MassNumber
+\&    SM : SpinMultiplicity
+.Ve
+.Sp
+\&\fIAtomTypes::AtomicInvariantsAtomTypes\fR module is used to assign atomic invariant
+atom types.
+.IP "\fB\-\-BitsOrder\fR \fIAscending | Descending\fR" 4
+.IX Item "--BitsOrder Ascending | Descending"
+Bits order to use during generation of fingerprints bit-vector string for \fIExtendedConnectivityBits\fR
+value of \fB\-m, \-\-mode\fR option. Possible values: \fIAscending, Descending\fR. Default: \fIAscending\fR.
+.Sp
+\&\fIAscending\fR bit order which corresponds to first bit in each byte as the lowest bit as
+opposed to the highest bit.
+.Sp
+Internally, bits are stored in \fIAscending\fR 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.
+.IP "\fB\-b, \-\-BitStringFormat\fR \fIBinaryString | HexadecimalString\fR" 4
+.IX Item "-b, --BitStringFormat BinaryString | HexadecimalString"
+Format of fingerprints bit-vector string data in output \s-1SD\s0, \s-1FP\s0 or \s-1CSV/TSV\s0 text file(s) specified by
+\&\fB\-\-output\fR used during \fIExtendedConnectivityBits\fR value of \fB\-m, \-\-mode\fR option. Possible
+values: \fIBinaryString, HexadecimalString\fR. Default value: \fIBinaryString\fR.
+.Sp
+\&\fIBinaryString\fR corresponds to an \s-1ASCII\s0 string containing 1s and 0s. \fIHexadecimalString\fR
+contains bit values in \s-1ASCII\s0 hexadecimal format.
+.Sp
+Examples:
+.Sp
+.Vb 6
+\&    FingerprintsBitVector;ExtendedConnectivityBits:AtomicInvariantsAtomTyp
+\&    es:Radius2;1024;BinaryString;Ascending;0000000000000000000000000000100
+\&    0000000001010000000110000011000000000000100000000000000000000000100001
+\&    1000000110000000000000000000000000010011000000000000000000000000010000
+\&    0000000000000000000000000010000000000000000001000000000000000000000000
+\&    0000000000010000100001000000000000101000000000000000100000000000000...
+\&
+\&    FingerprintsBitVector;ExtendedConnectivityBits:FunctionalClassAtomType
+\&    s:Radius2;1024;BinaryString;Ascending;00000000000000000000100000000000
+\&    0000000001000100000000001000000000000000000000000000000000101000000010
+\&    0000001000000000010000000000000000000000000000000000000000000000000100
+\&    0000000000001000000000000001000000000001001000000000000000000000000000
+\&    0000000000000000100000000000001000000000000000000000000000000000000...
+.Ve
+.ie n .IP "\fB\-\-FunctionalClassesToUse\fR \fI""FunctionalClass1,FunctionalClass2...""\fR" 4
+.el .IP "\fB\-\-FunctionalClassesToUse\fR \fI``FunctionalClass1,FunctionalClass2...''\fR" 4
+.IX Item "--FunctionalClassesToUse FunctionalClass1,FunctionalClass2..."
+This value is used during \fIFunctionalClassAtomTypes\fR value of \fBa, \-\-AtomIdentifierType\fR
+option. It's a list of comma separated valid functional classes.
+.Sp
+Possible values for atom functional classes are: \fIAr, \s-1CA\s0, H, \s-1HBA\s0, \s-1HBD\s0, Hal, \s-1NI\s0, \s-1PI\s0, \s-1RA\s0\fR.
+Default value [ Ref 24 ]: \fI\s-1HBD\s0,HBA,PI,NI,Ar,Hal\fR.
+.Sp
+The functional class abbreviations correspond to:
+.Sp
+.Vb 9
+\&    HBD: HydrogenBondDonor
+\&    HBA: HydrogenBondAcceptor
+\&    PI :  PositivelyIonizable
+\&    NI : NegativelyIonizable
+\&    Ar : Aromatic
+\&    Hal : Halogen
+\&    H : Hydrophobic
+\&    RA : RingAtom
+\&    CA : ChainAtom
+\&
+\& Functional class atom type specification for an atom corresponds to:
+\&
+\&    Ar.CA.H.HBA.HBD.Hal.NI.PI.RA
+.Ve
+.Sp
+\&\fIAtomTypes::FunctionalClassAtomTypes\fR module is used to assign functional class atom
+types. It uses following definitions [ Ref 60\-61, Ref 65\-66 ]:
+.Sp
+.Vb 4
+\&    HydrogenBondDonor: NH, NH2, OH
+\&    HydrogenBondAcceptor: N[!H], O
+\&    PositivelyIonizable: +, NH2
+\&    NegativelyIonizable: \-, C(=O)OH, S(=O)OH, P(=O)OH
+.Ve
+.IP "\fB\-\-CompoundID\fR \fIDataFieldName or LabelPrefixString\fR" 4
+.IX Item "--CompoundID DataFieldName or LabelPrefixString"
+This value is \fB\-\-CompoundIDMode\fR specific and indicates how compound \s-1ID\s0 is generated.
+.Sp
+For \fIDataField\fR value of \fB\-\-CompoundIDMode\fR option, it corresponds to datafield label name
+whose value is used as compound \s-1ID\s0; otherwise, it's a prefix string used for generating compound
+IDs like LabelPrefixString<Number>. Default value, \fICmpd\fR, generates compound IDs which
+look like Cmpd<Number>.
+.Sp
+Examples for \fIDataField\fR value of \fB\-\-CompoundIDMode\fR:
+.Sp
+.Vb 2
+\&    MolID
+\&    ExtReg
+.Ve
+.Sp
+Examples for \fILabelPrefix\fR or \fIMolNameOrLabelPrefix\fR value of \fB\-\-CompoundIDMode\fR:
+.Sp
+.Vb 1
+\&    Compound
+.Ve
+.Sp
+The value specified above generates compound IDs which correspond to Compound<Number>
+instead of default value of Cmpd<Number>.
+.IP "\fB\-\-CompoundIDLabel\fR \fItext\fR" 4
+.IX Item "--CompoundIDLabel text"
+Specify compound \s-1ID\s0 column label for \s-1FP\s0 or \s-1CSV/TSV\s0 text file(s) used during \fICompoundID\fR value
+of \fB\-\-DataFieldsMode\fR option. Default: \fICompoundID\fR.
+.IP "\fB\-\-CompoundIDMode\fR \fIDataField | MolName | LabelPrefix | MolNameOrLabelPrefix\fR" 4
+.IX Item "--CompoundIDMode DataField | MolName | LabelPrefix | MolNameOrLabelPrefix"
+Specify how to generate compound IDs and write to \s-1FP\s0 or \s-1CSV/TSV\s0 text file(s) along with generated
+fingerprints for \fI\s-1FP\s0 | text | all\fR values of \fB\-\-output\fR option: use a \fISDFile(s)\fR datafield value;
+use molname line from \fISDFile(s)\fR; generate a sequential \s-1ID\s0 with specific prefix; use combination
+of both MolName and LabelPrefix with usage of LabelPrefix values for empty molname lines.
+.Sp
+Possible values: \fIDataField | MolName | LabelPrefix | MolNameOrLabelPrefix\fR.
+Default: \fILabelPrefix\fR.
+.Sp
+For \fIMolNameAndLabelPrefix\fR value of \fB\-\-CompoundIDMode\fR, molname line in \fISDFile(s)\fR takes
+precedence over sequential compound IDs generated using \fILabelPrefix\fR and only empty molname
+values are replaced with sequential compound IDs.
+.Sp
+This is only used for \fICompoundID\fR value of \fB\-\-DataFieldsMode\fR option.
+.ie n .IP "\fB\-\-DataFields\fR \fI""FieldLabel1,FieldLabel2,...""\fR" 4
+.el .IP "\fB\-\-DataFields\fR \fI``FieldLabel1,FieldLabel2,...''\fR" 4
+.IX Item "--DataFields FieldLabel1,FieldLabel2,..."
+Comma delimited list of \fISDFiles(s)\fR data fields to extract and write to \s-1CSV/TSV\s0 text file(s) along
+with generated fingerprints for \fItext | all\fR values of \fB\-\-output\fR option.
+.Sp
+This is only used for \fISpecify\fR value of \fB\-\-DataFieldsMode\fR option.
+.Sp
+Examples:
+.Sp
+.Vb 2
+\&    Extreg
+\&    MolID,CompoundName
+.Ve
+.IP "\fB\-d, \-\-DataFieldsMode\fR \fIAll | Common | Specify | CompoundID\fR" 4
+.IX Item "-d, --DataFieldsMode All | Common | Specify | CompoundID"
+Specify how data fields in \fISDFile(s)\fR are transferred to output \s-1CSV/TSV\s0 text file(s) along
+with generated fingerprints for \fItext | all\fR values of \fB\-\-output\fR option: transfer all \s-1SD\s0
+data field; transfer \s-1SD\s0 data files common to all compounds; extract specified data fields;
+generate a compound \s-1ID\s0 using molname line, a compound prefix, or a combination of both.
+Possible values: \fIAll | Common | specify | CompoundID\fR. Default value: \fICompoundID\fR.
+.IP "\fB\-f, \-\-Filter\fR \fIYes | No\fR" 4
+.IX Item "-f, --Filter Yes | No"
+Specify whether to check and filter compound data in SDFile(s). Possible values: \fIYes or No\fR.
+Default value: \fIYes\fR.
+.Sp
+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.
+.IP "\fB\-\-FingerprintsLabel\fR \fItext\fR" 4
+.IX Item "--FingerprintsLabel text"
+\&\s-1SD\s0 data label or text file column label to use for fingerprints string in output \s-1SD\s0 or
+\&\s-1CSV/TSV\s0 text file(s) specified by \fB\-\-output\fR. Default value: \fIExtendedConnectivityFingerprints\fR.
+.IP "\fB\-h, \-\-help\fR" 4
+.IX Item "-h, --help"
+Print this help message.
+.IP "\fB\-k, \-\-KeepLargestComponent\fR \fIYes | No\fR" 4
+.IX Item "-k, --KeepLargestComponent Yes | No"
+Generate fingerprints for only the largest component in molecule. Possible values:
+\&\fIYes or No\fR. Default value: \fIYes\fR.
+.Sp
+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.
+.IP "\fB\-m, \-\-mode\fR \fIExtendedConnectivity | ExtendedConnectivityCount | ExtendedConnectivityBits\fR" 4
+.IX Item "-m, --mode ExtendedConnectivity | ExtendedConnectivityCount | ExtendedConnectivityBits"
+Specify type of extended connectivity fingerprints to generate for molecules in \fISDFile(s)\fR.
+Possible values: \fIExtendedConnectivity, ExtendedConnecticityCount or
+ExtendedConnectivityBits\fR. Default value: \fIExtendedConnectivity\fR.
+.Sp
+For \fIExtendedConnnectivity\fR value of fingerprints \fB\-m, \-\-mode\fR, a fingerprint vector
+containing unique atom identifiers constitute the extended connectivity fingerprints
+of a molecule.
+.Sp
+For \fIExtendedConnnectivityCount\fR value of fingerprints \fB\-m, \-\-mode\fR, a fingerprint vector
+containing unique atom identifiers along with their count constitute the extended connectivity
+fingerprints of a molecule.
+.Sp
+For \fIExtendedConnnectivityBits\fR value of fingerprints \fB\-m, \-\-mode\fR, a fingerprint bit vector
+indicating presence/absence of structurally unique atom identifiers constitute the extended
+connectivity fingerprints of a molecule.
+.IP "\fB\-n, \-\-NeighborhoodRadius\fR \fInumber\fR" 4
+.IX Item "-n, --NeighborhoodRadius number"
+Atomic neighborhood radius for generating extended connectivity neighborhoods. Default
+value: \fI2\fR.  Valid values: >= 0. Neighborhood radius of zero correspond to just the list
+of non-hydrogen atoms.
+.Sp
+Default value of \fI2\fR for atomic neighborhood radius generates extended connectivity
+fingerprints corresponding to path length or diameter value of \fI4\fR [ Ref 52b ].
+.IP "\fB\-\-OutDelim\fR \fIcomma | tab | semicolon\fR" 4
+.IX Item "--OutDelim comma | tab | semicolon"
+Delimiter for output \s-1CSV/TSV\s0 text file(s). Possible values: \fIcomma, tab, or semicolon\fR
+Default value: \fIcomma\fR.
+.IP "\fB\-\-output\fR \fI\s-1SD\s0 | \s-1FP\s0 | text | all\fR" 4
+.IX Item "--output SD | FP | text | all"
+Type of output files to generate. Possible values: \fI\s-1SD\s0, \s-1FP\s0, text, or all\fR. Default value: \fItext\fR.
+.IP "\fB\-o, \-\-overwrite\fR" 4
+.IX Item "-o, --overwrite"
+Overwrite existing files.
+.IP "\fB\-q, \-\-quote\fR \fIYes | No\fR" 4
+.IX Item "-q, --quote Yes | No"
+Put quote around column values in output \s-1CSV/TSV\s0 text file(s). Possible values:
+\&\fIYes or No\fR. Default value: \fIYes\fR.
+.IP "\fB\-r, \-\-root\fR \fIRootName\fR" 4
+.IX Item "-r, --root RootName"
+New file name is generated using the root: <Root>.<Ext>. Default for new file names:
+<SDFileName><ExtendedConnectivityFP>.<Ext>. The file type determines <Ext>
+value. The sdf, fpf, csv, and tsv <Ext> values are used for \s-1SD\s0, \s-1FP\s0, comma/semicolon, and tab
+delimited text files, respectively.This option is ignored for multiple input files.
+.IP "\fB\-s, \-\-size\fR \fInumber\fR" 4
+.IX Item "-s, --size number"
+Size of bit-vector to use during generation of fingerprints bit-vector string for
+\&\fIExtendedConnectivityBits\fR value of \fB\-m, \-\-mode\fR. Default value: \fI1024\fR.
+Valid values correspond to any positive integer which satisfies the following criteria:
+power of 2, >= 32 and <= 2 ** 32.
+.Sp
+Examples:
+.Sp
+.Vb 3
+\&   512
+\&   1024
+\&   2048
+.Ve
+.IP "\fB\-\-UsePerlCoreRandom\fR \fIYes | No\fR" 4
+.IX Item "--UsePerlCoreRandom Yes | No"
+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: \fIYes or No\fR. Default value: \fIYes\fR.
+.Sp
+\&\fINo\fR value option for \fB\-\-UsePerlCoreRandom\fR allows the generation of fingerprints
+bit-vector strings which are same across different platforms.
+.Sp
+The random number generator implemented in MayaChemTools is a variant of
+linear congruential generator (\s-1LCG\s0) as described by Miller et al. [ Ref 120 ].
+It is also referred to as Lehmer random number generator or Park-Miller
+random number generator.
+.Sp
+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.
+.IP "\fB\-v, \-\-VectorStringFormat\fR \fIValuesString | IDsAndValuesString | IDsAndValuesPairsString | ValuesAndIDsString | ValuesAndIDsPairsString\fR" 4
+.IX Item "-v, --VectorStringFormat ValuesString | IDsAndValuesString | IDsAndValuesPairsString | ValuesAndIDsString | ValuesAndIDsPairsString"
+Format of fingerprints vector string data in output \s-1SD\s0, \s-1FP\s0 or \s-1CSV/TSV\s0 text file(s) specified by
+\&\fB\-\-output\fR used during <ExtendedConnectivityCount> value of \fB\-m, \-\-mode\fR option. Possible
+values: \fIValuesString, IDsAndValuesString | IDsAndValuesPairsString | ValuesAndIDsString |
+ValuesAndIDsPairsString\fR.
+.Sp
+Default value during <ExtendedConnectivityCount> value of \fB\-m, \-\-mode\fR option:
+\&\fIIDsAndValuesString\fR.
+.Sp
+Default value during <ExtendedConnectivity> value of \fB\-m, \-\-mode\fR option: \fIValuesString\fR.
+.Sp
+Examples:
+.Sp
+.Vb 6
+\&    FingerprintsVector;ExtendedConnectivity:AtomicInvariantsAtomTypes:Radi
+\&    us2;60;AlphaNumericalValues;ValuesString;73555770 333564680 352413391
+\&    666191900 1001270906 1371674323 1481469939 1977749791 2006158649 21414
+\&    08799 49532520 64643108 79385615 96062769 273726379 564565671 85514103
+\&    5 906706094 988546669 1018231313 1032696425 1197507444 1331250018 1338
+\&    532734 1455473691 1607485225 1609687129 1631614296 1670251330 17303...
+\&
+\&    FingerprintsVector;ExtendedConnectivityCount:AtomicInvariantsAtomTypes
+\&    :Radius2;60;NumericalValues;IDsAndValuesString;73555770 333564680 3524
+\&    13391 666191900 1001270906 1371674323 1481469939 1977749791 2006158649
+\&    2141408799 49532520 64643108 79385615 96062769 273726379 564565671...;
+\&    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
+\&    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
+.Ve
+.IP "\fB\-w, \-\-WorkingDir\fR \fIDirName\fR" 4
+.IX Item "-w, --WorkingDir DirName"
+Location of working directory. Default: current directory.
+.SH "EXAMPLES"
+.IX Header "EXAMPLES"
+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:
+.PP
+.Vb 1
+\&    % ExtendedConnectivityFingerprints.pl \-r SampleECAIFP \-o Sample.sdf
+.Ve
+.PP
+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:
+.PP
+.Vb 2
+\&    % ExtendedConnectivityFingerprints.pl \-m ExtendedConnectivityCount
+\&      \-r SampleECAIFP \-o Sample.sdf
+.Ve
+.PP
+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:
+.PP
+.Vb 2
+\&    % ExtendedConnectivityFingerprints.pl \-m ExtendedConnectivityBits
+\&      \-r SampleECAIFP \-o Sample.sdf
+.Ve
+.PP
+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:
+.PP
+.Vb 2
+\&    % ExtendedConnectivityFingerprints.pl \-m ExtendedConnectivityBits
+\&      \-\-BitStringFormat BinaryString \-r SampleECAIFP \-o Sample.sdf
+.Ve
+.PP
+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 \s-1CSV\s0 file along with fingerprints
+vector strings data, type:
+.PP
+.Vb 2
+\&    % ExtendedConnectivityFingerprints.pl \-\-output all \-r SampleECAIFP
+\&      \-o Sample.sdf
+.Ve
+.PP
+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 \s-1CSV\s0 file along with fingerprints
+vector strings data, type:
+.PP
+.Vb 2
+\&    % ExtendedConnectivityFingerprints.pl \-m ExtendedConnectivityCount
+\&      \-\-output all \-r SampleECAIFP \-o Sample.sdf
+.Ve
+.PP
+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:
+.PP
+.Vb 2
+\&    % ExtendedConnectivityFingerprints.pl \-a FunctionalClassAtomTypes
+\&      \-r SampleECFCFP \-o Sample.sdf
+.Ve
+.PP
+To generate extended connectivity fingerprints corresponding to neighborhood radius up to
+2 using \s-1DREIDING\s0 atom types in vector string format and create a SampleECFP.csv file
+containing sequential compound IDs along with fingerprints vector strings data, type:
+.PP
+.Vb 2
+\&    % ExtendedConnectivityFingerprints.pl \-a DREIDINGAtomTypes
+\&      \-r SampleECFP \-o Sample.sdf
+.Ve
+.PP
+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:
+.PP
+.Vb 2
+\&    % ExtendedConnectivityFingerprints.pl \-a EStateAtomTypes
+\&      \-r SampleECFP \-o Sample.sdf
+.Ve
+.PP
+To generate extended connectivity fingerprints corresponding to neighborhood radius up to
+2 using \s-1MMFF94\s0 atom types in vector string format and create a SampleECFP.csv file
+containing sequential compound IDs along with fingerprints vector strings data, type:
+.PP
+.Vb 2
+\&    % ExtendedConnectivityFingerprints.pl \-a MMFF94AtomTypes
+\&      \-r SampleECFP \-o Sample.sdf
+.Ve
+.PP
+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:
+.PP
+.Vb 2
+\&    % ExtendedConnectivityFingerprints.pl \-a SLogPAtomTypes
+\&      \-r SampleECFP \-o Sample.sdf
+.Ve
+.PP
+To generate extended connectivity fingerprints corresponding to neighborhood radius up to
+2 using \s-1SYBYL\s0 atom types in vector string format and create a SampleECFP.csv file
+containing sequential compound IDs along with fingerprints vector strings data, type:
+.PP
+.Vb 2
+\&    % ExtendedConnectivityFingerprints.pl \-a SYBYLAtomTypes
+\&      \-r SampleECFP \-o Sample.sdf
+.Ve
+.PP
+To generate extended connectivity fingerprints corresponding to neighborhood radius up to
+2 using \s-1TPSA\s0 atom types in vector string format and create a SampleECFP.csv file
+containing sequential compound IDs along with fingerprints vector strings data, type:
+.PP
+.Vb 2
+\&    % ExtendedConnectivityFingerprints.pl \-a TPSAAtomTypes
+\&      \-r SampleECFP \-o Sample.sdf
+.Ve
+.PP
+To generate extended connectivity fingerprints corresponding to neighborhood radius up to
+2 using \s-1UFF\s0 atom types in vector string format and create a SampleECFP.csv file
+containing sequential compound IDs along with fingerprints vector strings data, type:
+.PP
+.Vb 2
+\&    % ExtendedConnectivityFingerprints.pl \-a UFFAtomTypes
+\&      \-r SampleECFP \-o Sample.sdf
+.Ve
+.PP
+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:
+.PP
+.Vb 2
+\&    % ExtendedConnectivityFingerprints.pl \-a AtomicInvariantsAtomTypes \-n 3
+\&      \-r SampleECAIFP \-o Sample.sdf
+.Ve
+.PP
+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:
+.PP
+.Vb 2
+\&    % ExtendedConnectivityFingerprints.pl \-a FunctionalClassAtomTypes \-n 3
+\&      \-r SampleECFCFP \-o Sample.sdf
+.Ve
+.PP
+To generate extended connectivity fingerprints corresponding to neighborhood radius up to
+2 using only \s-1AS\s0,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:
+.PP
+.Vb 2
+\&    % ExtendedConnectivityFingerprints.pl \-a AtomicInvariantsAtomTypes
+\&      \-\-AtomicInvariantsToUse "AS,X" \-r SampleECAIFP \-o Sample.sdf
+.Ve
+.PP
+To generate extended connectivity fingerprints corresponding to neighborhood radius up to
+2 using only \s-1HBD\s0,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:
+.PP
+.Vb 2
+\&    % ExtendedConnectivityFingerprints.pl \-a FunctionalClassAtomTypes
+\&      \-\-FunctionalClassesToUse "HBD,HBA" \-r SampleECFCFP \-o Sample.sdf
+.Ve
+.PP
+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 \s-1ID\s0 from molecule name line along with fingerprints vector strings
+data, type:
+.PP
+.Vb 3
+\&    % ExtendedConnectivityFingerprints.pl \-a AtomicInvariantsAtomTypes
+\&      \-\-DataFieldsMode CompoundID \-CompoundIDMode MolName
+\&      \-r SampleECAIFP \-o Sample.sdf
+.Ve
+.PP
+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:
+.PP
+.Vb 3
+\&    % ExtendedConnectivityFingerprints.pl \-a FunctionalClassAtomTypes
+\&      \-\-DataFieldsMode CompoundID \-CompoundIDMode DataField \-\-CompoundID Mol_ID
+\&      \-r SampleECFCFP \-o Sample.sdf
+.Ve
+.PP
+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 \s-1ID\s0 using combination of molecule name line and an explicit compound
+prefix along with fingerprints vector strings data, type:
+.PP
+.Vb 3
+\&    % ExtendedConnectivityFingerprints.pl \-a AtomicInvariantsAtomTypes
+\&      \-\-DataFieldsMode CompoundID \-CompoundIDMode MolnameOrLabelPrefix
+\&      \-\-CompoundID Cmpd \-\-CompoundIDLabel MolID \-r SampleECAIFP \-o Sample.sdf
+.Ve
+.PP
+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:
+.PP
+.Vb 3
+\&    % ExtendedConnectivityFingerprints.pl \-a FunctionalClassAtomTypes
+\&      \-\-DataFieldsMode  Specify \-\-DataFields Mol_ID \-r SampleECFCFP
+\&      \-o Sample.sdf
+.Ve
+.PP
+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:
+.PP
+.Vb 2
+\&    % ExtendedConnectivityFingerprints.pl \-a AtomicInvariantsAtomTypes
+\&      \-\-DataFieldsMode Common \-r SampleECAIFP \-o Sample.sdf
+.Ve
+.PP
+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 \s-1CSV\s0 file along with fingerprints
+vector strings data, type:
+.PP
+.Vb 3
+\&    % ExtendedConnectivityFingerprints.pl \-a FunctionalClassAtomTypes
+\&      \-\-DataFieldsMode All  \-\-output all \-r SampleECFCFP
+\&      \-o Sample.sdf
+.Ve
+.SH "AUTHOR"
+.IX Header "AUTHOR"
+Manish Sud <msud@san.rr.com>
+.SH "SEE ALSO"
+.IX Header "SEE ALSO"
+InfoFingerprintsFiles.pl, SimilarityMatricesFingerprints.pl, AtomNeighborhoodsFingerprints.pl,
+MACCSKeysFingerprints.pl, PathLengthFingerprints.pl,
+TopologicalAtomPairsFingerprints.pl, TopologicalAtomTorsionsFingerprints.pl,
+TopologicalPharmacophoreAtomPairsFingerprints.pl, TopologicalPharmacophoreAtomTripletsFingerprints.pl
+.SH "COPYRIGHT"
+.IX Header "COPYRIGHT"
+Copyright (C) 2015 Manish Sud. All rights reserved.
+.PP
+This file is part of MayaChemTools.
+.PP
+MayaChemTools is free software; you can redistribute it and/or modify it under
+the terms of the \s-1GNU\s0 Lesser General Public License as published by the Free
+Software Foundation; either version 3 of the License, or (at your option)
+any later version.