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Ajuda Scilab >> Estatística

Estatística

  • cdf
    • binomial — probabilidades de distribuição binomial
    • cdfbet — cumulative distribution function Beta distribution
    • cdfbin — cumulative distribution function Binomial distribution
    • cdfchi — cumulative distribution function chi-square distribution
    • cdfchn — cumulative distribution function non-central chi-square distribution
    • cdff — cumulative distribution function F distribution
    • cdffnc — cumulative distribution function non-central f-distribution
    • cdfgam — cumulative distribution function gamma distribution
    • cdfnbn — cumulative distribution function negative binomial distribution
    • cdfnor — cumulative distribution function normal distribution
    • cdfpoi — cumulative distribution function poisson distribution
    • cdft — cumulative distribution function Student's T distribution
  • Central Tendency
    • geomean — geometric mean
    • harmean — harmonic mean
    • mean — mean (row mean, column mean) of vector/matrix entries
    • meanf — weighted mean of a vector or a matrix
    • trimmean — trimmed mean of a vector or a matrix
  • Data with Missing Values
    • nancumsum — Thos function returns the cumulative sum of the values of a matrix
    • nand2mean — difference of the means of two independent samples
    • nanmax — max (ignoring Nan's)
    • nanmean — mean (ignoring Nan's)
    • nanmeanf — mean (ignoring Nan's) with a given frequency.
    • nanmedian — median of the values of a numerical vector or matrix
    • nanmin — min (ignoring Nan's)
    • nanstdev — standard deviation (ignoring the NANs).
    • nansum — Sum of values ignoring NAN's
    • thrownan — Eliminates nan values
  • Descriptive Statistics
    • center — center
    • correl — correlation of two variables
    • covar — covariance of two variables
    • median — median (row median, column median,...) of vector/matrix/array entries
    • msd — mean squared deviation
    • mvvacov — computes variance-covariance matrix
    • stdev — standard deviation (row or column-wise) of vector/matrix entries
    • stdevf — standard deviation
    • variance — variance of the values of a vector or matrix (or hypermatrix) real or complex
    • variancef — standard deviation of the values of a vector or matrix
    • wcenter — center and weight
  • Hypothesis Testing
    • ftest — Fisher ratio
    • ftuneq — Fisher ratio for samples of unequal size.
  • Measures of Dispersion
    • iqr — interquartile range
    • mad — mean absolute deviation
    • strange — range
  • Measures of Shape
    • cmoment — central moments of all orders
    • moment — non central moments of all orders
    • perctl — computation of percentils
    • quart — computation of quartiles
  • Principal Component Analysis
    • pca — Computes principal components analysis with standardized variables
    • princomp — Principal components analysis
    • show_pca — Visualization of principal components analysis results
  • Regression
    • regress — regression coefficients of two variables
  • Sampling
    • sample — Sampling with replacement
    • samplef — sample with replacement from a population and frequences of his values.
    • samwr — Sampling without replacement
  • Summaries
    • nfreq — frequence of the values in a vector or matrix
    • tabul — frequency of values of a matrix or vector
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with contributors 		Last updated:
Tue Apr 02 17:37:05 CEST 2013