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NAME
    AnalyzeSDFilesData.pl - Analyze numerical data field values in SDFile(s)

SYNOPSIS
    AnalyzeSDFilesData.pl SDFile(s)...

    AnalyzeSDFilesData.pl [--datafields "fieldlabel,[fieldlabel,...]" | All]
    [--datafieldpairs "fieldlabel,fieldlabel,[fieldlabel,fieldlabel,...]" |
    AllPairs] [-d, --detail infolevel] [-f, --fast] [--frequencybins number
    | "number,number,[number,...]"] [-h, --help] [--klargest number]
    [--ksmallest number] [-m, --mode DescriptiveStatisticsBasic |
    DescriptiveStatisticsAll | All | "function1, [function2,...]"]
    [--trimfraction number] [-w, --workingdir dirname] SDFiles(s)...

DESCRIPTION
    Analyze numerical data field values in *SDFile(s)* using a combination
    of various statistical functions; Non-numerical values are simply
    ignored. For *Correlation, RSquare, and Covariance* analysis, the count
    of valid values in specified data field pairs must be same; otherwise,
    column data field pair is ignored. The file names are separated by
    space.The valid file extensions are *.sdf* and *.sd*. All other file
    names are ignored. All the SD files in a current directory can be
    specified either by **.sdf* or the current directory name.

OPTIONS
    --datafields *"fieldlabel,[fieldlabel,...]" | Common | All*
        Data fields to use for analysis. Possible values: list of comma
        separated data field labels, data fields common to all records, or
        all data fields. Default value: *Common*. Examples:

            ALogP,MolWeight,EC50
            "MolWeight,PSA"

    --datafieldpairs *"fieldlabel,fieldlabel,[fieldlabel,fieldlabel,...]" |
    CommonPairs | AllPairs*
        This value is mode specific and is only used for *Correlation,
        PearsonCorrelation, or Covariance* value of -m, --mode option. It
        specifies data field label pairs to use for data analysis during
        *Correlation* and *Covariance* calculations. Possible values: comma
        delimited list of data field label pairs, data field label pairs
        common to all records, or all data field pairs. Default
        value:*CommonPairs*. Example:

            MolWeight,EC50,NumN+O,PSA

        For *AllPairs* value of --datafieldpairs option, all data field
        label pairs are used for *Correlation* and *Covariance*
        calculations.

    -d, --detail *infolevel*
        Level of information to print about column values being ignored.
        Default: *0*. Possible values: 0, 1, 2, 3, or 4.

    -f, --fast
        In this mode, all the data field values specified for analysis are
        assumed to contain numerical data and no checking is performed
        before analysis. By default, only numerical data is used for
        analysis; other types of column data is ignored.

    --frequencybins *number | "number,number,[number,...]"*
        Specify number of bins or bin range to use for frequency analysis.
        Default value: *10*

        Number of bins value along with the smallest and largest value for a
        column is used to group the column values into different groups.

        The bin range list is used to group values for a column into
        different groups; It must contain values in ascending order.
        Examples:

            10,20,30
            0.1,0.2,0.3,0.4,0.5

        The frequency value calculated for a specific bin corresponds to all
        the column values which are greater than the previous bin value and
        less than or equal to the current bin value.

    -h, --help
        Print this help message.

    --klargest *number*
        Kth largest value to find by *KLargest* function. Default value:
        *2*. Valid values: positive integers.

    --ksmallest *number*
        Kth smallest value to find by *KSmallest* function. Default values:
        *2*. Valid values: positive integers.

    -m, --mode *DescriptiveStatisticsBasic | DescriptiveStatisticsAll | All
    | "function1, [function2,...]"*
        Specify how to analyze data in SDFile(s): calculate basic or all
        descriptive statistics; or use a comma delimited list of supported
        statistical functions. Possible values: *DescriptiveStatisticsBasic
        | DescriptiveStatisticsAll | "function1,[function2]..."*. Default
        value: *DescriptiveStatisticsBasic*

        *DescriptiveStatisticsBasic* includes these functions: *Count,
        Maximum, Minimum, Mean, Median, Sum, StandardDeviation,
        StandardError, Variance*.

        *DescriptiveStatisticsAll*, in addition to
        *DescriptiveStatisticsBasic* functions, includes: *GeometricMean,
        Frequency, HarmonicMean, KLargest, KSmallest, Kurtosis, Mode,
        RSquare, Skewness, TrimMean*.

        *All* uses complete list of supported functions: *Average,
        AverageDeviation, Correlation, Count, Covariance, GeometricMean,
        Frequency, HarmonicMean, KLargest, KSmallest, Kurtosis, Maximum,
        Minimum, Mean, Median, Mode, RSquare, Skewness, Sum, SumOfSquares,
        StandardDeviation, StandardDeviationN, StandardError,
        StandardScores, StandardScoresN, TrimMean, Variance, VarianceN*. The
        function names ending with N calculate corresponding values assuming
        an entire population instead of a population sample. Here are the
        formulas for these functions:

        Average: See Mean

        AverageDeviation: SUM( ABS(x[i] - Xmean) ) / n

        Correlation: See Pearson Correlation

        Covariance: SUM( (x[i] - Xmean)(y[i] - Ymean) ) / n

        GeometricMean: NthROOT( PRODUCT(x[i]) )

        HarmonicMean: 1 / ( SUM(1/x[i]) / n )

        Mean: SUM( x[i] ) / n

        Median: Xsorted[(n - 1)/2 + 1] for even values of n; (Xsorted[n/2] +
        Xsorted[n/2 + 1])/2 for odd values of n.

        Kurtosis: [ {n(n + 1)/(n - 1)(n - 2)(n - 3)} SUM{ ((x[i] -
        Xmean)/STDDEV)^4 } ] - {3((n - 1)^2)}/{(n - 2)(n-3)}

        PearsonCorrelation: SUM( (x[i] - Xmean)(y[i] - Ymean) ) / SQRT( SUM(
        (x[i] - Xmean)^2 ) (SUM( (y[i] - Ymean)^2 )) )

        RSquare: PearsonCorrelation^2

        Skewness: {n/(n - 1)(n - 2)} SUM{ ((x[i] - Xmean)/STDDEV)^3 }

        StandardDeviation: SQRT ( SUM( (x[i] - Mean)^2 ) / (n - 1) )

        StandardDeviationN: SQRT ( SUM( (x[i] - Mean)^2 ) / n )

        StandardError: StandardDeviation / SQRT( n )

        StandardScore: (x[i] - Mean) / (n - 1)

        StandardScoreN: (x[i] - Mean) / n

        Variance: SUM( (x[i] - Xmean)^2 / (n - 1) )

        VarianceN: SUM( (x[i] - Xmean)^2 / n )

    -o, --overwrite
        Overwrite existing files.

    --outdelim *comma | tab | semicolon*
        Output text file delimiter. Possible values: *comma, tab, or
        semicolon* Default value: *comma*.

    -p, --precision *number*
        Precision of calculated values in the output file. Default: up to
        *2* decimal places. Valid values: positive integers.

    -q, --quote *yes | no*
        Put quotes around column values in output text file. Possible
        values: *yes or no*. Default value: *yes*.

    -r, --root *rootname*
        New text file name is generated using the root: <Root>.<Ext>.
        Default new file name: <InitialSDFileName><Mode>.<Ext>. Based on the
        specified analysis, <Mode> corresponds to one of these values:
        DescriptiveStatisticsBasic, DescriptiveStatisticsAll, AllStatistics,
        SpecifiedStatistics, Covariance, Correlation, Frequency, or
        StandardScores. The csv, and tsv <Ext> values are used for
        comma/semicolon, and tab delimited text files respectively. This
        option is ignored for multiple input files.

    --trimfraction *number*
        Fraction of data to exclude from the top and bottom of the data set
        during *TrimMean* calculation. Default value: *0.1* Valid values: >
        0 and < 1.

    -w --workingdir *text*
        Location of working directory. Default: current directory.

EXAMPLES
    To calculate basic statistics for data in all common data fields and
    generate a NewSample1DescriptiveStatisticsBasic.csv file, type:

        % AnalyzeSDFilesData.pl -o -r NewSample1 Sample1.sdf

    To calculate basic statistics for MolWeight data field and generate a
    NewSample1DescriptiveStatisticsBasic.csv file, type:

        % AnalyzeSDFilesData.pl --datafields MolWeight -o -r NewSample1
        Sample1.sdf

    To calculate all available statistics for MolWeight data field and all
    data field pairs, and generate NewSample1DescriptiveStatisticsAll.csv,
    NewSample1CorrelationMatrix.csv, NewSample1CorrelationMatrix.csv, and
    NewSample1MolWeightFrequencyAnalysis.csv files, type:

        % AnalyzeSDFilesData.pl -m DescriptiveStatisticsAll --datafields
        MolWeight -o --datafieldpairs AllPairs -r NewSample1 Sample1.sdf

    To compute frequency distribution of MolWeight data field into five bins
    and generate NewSample1MolWeightFrequencyAnalysis.csv, type:

        % AnalyzeSDFilesData.pl -m Frequency --frequencybins 5 --datafields
        MolWeight -o -r NewSample1 Sample1.sdf

    To compute frequency distribution of data in MolWeight data field into
    specified bin range values, and generate
    NewSample1MolWeightFrequencyAnalysis.csv, type:

        % AnalyzeSDFilesData.pl -m Frequency --frequencybins "100,200,400"
        --datafields MolWeight -o -r NewSample1 Sample1.sdf

    To calculate all available statistics for data in all data fields and
    pairs, type:

        % AnalyzeSDFilesData.pl -m All --datafields  All --datafieldpairs
        AllPairs -o -r NewSample1 Sample1.sdf

AUTHOR
    Manish Sud <[e-mail]>

SEE ALSO
    FilterSDFiles.pl, InfoSDFiles.pl, SplitSDFiles.pl,
    MergeTextFilesWithSD.pl

COPYRIGHT
    Copyright (C) 2015 Manish Sud. All rights reserved.

    This file is part of MayaChemTools.

    MayaChemTools is free software; you can redistribute it and/or modify it
    under the terms of the GNU Lesser General Public License as published by
    the Free Software Foundation; either version 3 of the License, or (at
    your option) any later version.