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Scilab help >> Statistics

### Statistics

• Cumulated Distribution Functions
• cdfbetcumulative distribution function Beta distribution
• cdfbincumulative distribution function Binomial distribution
• cdfchicumulative distribution function chi-square distribution
• cdfchncumulative distribution function non-central chi-square distribution
• cdffcumulative distribution function F distribution
• cdffnccumulative distribution function non-central f-distribution
• cdfgamcumulative distribution function gamma distribution
• cdfnbncumulative distribution function negative binomial distribution
• cdfnorcumulative distribution function normal distribution
• cdfpoicumulative distribution function poisson distribution
• cdftcumulative distribution function Student's T distribution
• Central Tendency
• geomeangeometric mean
• harmeanharmonic mean
• meanmean (row mean, column mean) of vector/matrix entries
• meanfweighted mean of a vector or a matrix
• trimmeantrimmed mean of a vector or a matrix
• Data with Missing Values
• nancumsumThos function returns the cumulative sum of the values of a matrix
• nand2meandifference of the means of two independent samples
• nanmaxmax (ignoring Nan's)
• nanmeanmean (ignoring Nan's)
• nanmeanfmean (ignoring Nan's) with a given frequency.
• nanmedianmedian of the values of a numerical vector or matrix
• nanminmin (ignoring Nan's)
• nanstdevstandard deviation (ignoring the NANs).
• nansumSum of values ignoring NAN's
• thrownanEliminates nan values
• Descriptive Statistics
• centercenter
• correlcorrelation of two variables
• covarcovariance of two variables
• medianmedian (row median, column median,...) of vector/matrix/array entries
• msdmean squared deviation
• mvvacovcomputes variance-covariance matrix
• st_deviationstandard deviation (row or column-wise) of vector/matrix entries
• stdevfstandard deviation
• variancevariance of the values of a vector or matrix
• variancefstandard deviation of the values of a vector or matrix
• wcentercenter and weight
• Hypothesis Testing
• ftestFisher ratio
• ftuneqFisher ratio for samples of unequal size.
• Measures of Dispersion
• iqrinterquartile range
• strangerange
• Measures of Shape
• cmomentcentral moments of all orders
• momentnon central moments of all orders
• perctlcomputation of percentils
• quartcomputation of quartiles
• Principal Component Analysis
• pcaComputes principal components analysis with standardized variables
• princompPrincipal components analysis
• show_pcaVisualization of principal components analysis results
• Regression
• regressregression coefficients of two variables
• Sampling
• sampleSampling with replacement
• samplefsample with replacement from a population and frequences of his values.
• samwrSampling without replacement
• Summaries
• nfreqfrequence of the values in a vector or matrix
• tabulfrequency of values of a matrix or vector
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