Math_Stats
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Element index for package Math_Stats

[ a ] [ c ] [ f ] [ g ] [ k ] [ m ] [ s ] [ v ] [ _ ]

_

$_data
in file stats.class.php, variable Math_Stats::$_data
    The simple or cummulative data set.
$_dataOption
in file stats.class.php, variable Math_Stats::$_dataOption
    Flag for data type, one of STATS_DATA_SIMPLE or STATS_DATA_CUMMULATIVE.
$_nullOption
in file stats.class.php, variable Math_Stats::$_nullOption
    Flag for null handling options.
_validate
in file stats.class.php, method Math_Stats::_validate()
    Utility function to validate the data and modify it according to the current null handling option
__sumabsdev
in file stats.class.php, method Math_Stats::__sumabsdev()
    Utility function to calculate: SUM { | xi - mean | }
__sumdiff
in file stats.class.php, method Math_Stats::__sumdiff()
    Utility function to calculate: SUM { (xi - mean)^n }
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a

absDev
in file stats.class.php, method Math_Stats::absDev()
    Calculates the absolute deviation of the data points in the set Handles cummulative data sets correctly
absDevWithMean
in file stats.class.php, method Math_Stats::absDevWithMean()
    Calculates the absolute deviation of the data points in the set given a fixed mean (average) value.
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c

calc
in file stats.class.php, method Math_Stats::calc()
    Calculates the basic or full statistics for the data set
calcBasic
in file stats.class.php, method Math_Stats::calcBasic()
    Calculates a basic set of statistics
calcFull
in file stats.class.php, method Math_Stats::calcFull()
    Calculates a full set of statistics
coeffOfVariation
in file stats.class.php, method Math_Stats::coeffOfVariation()
    Calculates the coefficient of variation of a data set. The coefficient of variation measures the spread of a set of data as a proportion of its mean.
count
in file stats.class.php, method Math_Stats::count()
    Calculates the number of data points in the set Handles cummulative data sets correctly
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f

frequency
in file stats.class.php, method Math_Stats::frequency()
    Calculates the value frequency table of a data set.
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g

getData
in file stats.class.php, method Math_Stats::getData()
    Returns the data which might have been modified according to the current null handling options.
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k

kurtosis
in file stats.class.php, method Math_Stats::kurtosis()
    Calculates the kurtosis of the data distribution in the set The kurtosis measures the degrees of peakedness of a distribution.
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m

Math_Stats
in file stats.class.php, class Math_Stats
    A class to calculate descriptive statistics from a data set.
Math_Stats
in file stats.class.php, method Math_Stats::Math_Stats()
    Constructor for the class
max
in file stats.class.php, method Math_Stats::max()
    Calculates the maximum of a data set.
mean
in file stats.class.php, method Math_Stats::mean()
    Calculates the mean (average) of the data points in the set Handles cummulative data sets correctly
median
in file stats.class.php, method Math_Stats::median()
    Calculates the median of a data set.
midrange
in file stats.class.php, method Math_Stats::midrange()
    Calculates the midrange of a data set.
min
in file stats.class.php, method Math_Stats::min()
    Calculates the minimum of a data set.
mode
in file stats.class.php, method Math_Stats::mode()
    Calculates the mode of a data set.
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s

stats.class.php
procedural page stats.class.php
setData
in file stats.class.php, method Math_Stats::setData()
    Sets and verifies the data, checking for nulls and using the current null handling option
setNullOption
in file stats.class.php, method Math_Stats::setNullOption()
    Sets the null handling option.
skewness
in file stats.class.php, method Math_Stats::skewness()
    Calculates the skewness of the data distribution in the set The skewness measures the degree of asymmetry of a distribution, and is related to the third central moment of a distribution.
stats
in file stats.class.php, function stats()
STATS_BASIC
in file stats.class.php, constant STATS_BASIC
    STATS_BASIC to generate the basic descriptive statistics
STATS_DATA_CUMMULATIVE
in file stats.class.php, constant STATS_DATA_CUMMULATIVE
    STATS_DATA_CUMMULATIVE for an associative array of frequency values,
STATS_DATA_SIMPLE
in file stats.class.php, constant STATS_DATA_SIMPLE
    STATS_DATA_SIMPLE for an array of numeric values e.g.
STATS_FULL
in file stats.class.php, constant STATS_FULL
    STATS_FULL to generate also higher moments, mode, median, etc.
STATS_IGNORE_NULL
in file stats.class.php, constant STATS_IGNORE_NULL
    STATS_IGNORE_NULL, ignore null values and prune them FROM the data.
STATS_REJECT_NULL
in file stats.class.php, constant STATS_REJECT_NULL
    STATS_REJECT_NULL, reject data sets with null values.
STATS_USE_NULL_AS_ZERO
in file stats.class.php, constant STATS_USE_NULL_AS_ZERO
    STATS_USE_NULL_AS_ZERO, assign the value of 0 (zero) to null values.
stDev
in file stats.class.php, method Math_Stats::stDev()
    Calculates the standard deviation (unbiased) of the data points in the set Handles cummulative data sets correctly
stDevWithMean
in file stats.class.php, method Math_Stats::stDevWithMean()
    Calculates the standard deviation (unbiased) of the data points in the set given a fixed mean (average) value.
sum
in file stats.class.php, method Math_Stats::sum()
    Calculates SUM { xi } Handles cummulative data sets correctly
sum2
in file stats.class.php, method Math_Stats::sum2()
    Calculates SUM { (xi)^2 } Handles cummulative data sets correctly
sumN
in file stats.class.php, method Math_Stats::sumN()
    Calculates SUM { (xi)^n } Handles cummulative data sets correctly
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v

variance
in file stats.class.php, method Math_Stats::variance()
    Calculates the variance (unbiased) of the data points in the set Handles cummulative data sets correctly
varianceWithMean
in file stats.class.php, method Math_Stats::varianceWithMean()
    Calculates the variance (unbiased) of the data points in the set given a fixed mean (average) value.
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Documentation generated on Tue, 15 Jul 2003 10:19:33 +0200 by phpDocumentor 1.2.1