  center - center
  wcenter - center and weight
  cmoment - central moments of all orders
  correl - correlation of two variables
  covar - covariance of two variables
  ftest - Fischer ratio
  ftuneq - Fischer ratio for samples of unequal size.
  geomean - geometric mean
  harmean - harmonic mean
  iqr - interquartile range
  labostat - Statistical toolbox for Scilab
  mad - mean absolute deviation
  mean - mean (row mean, column mean) of vector/matrix entries
  meanf - weighted mean of a vector or a matrix
  median - median (row median, column median) of vector/matrix entries
  moment - non central moments of all orders
  msd - mean squared deviation
  mvvacov - computes variance-covariance matrix
  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
  nfreq - frequence of the values in a vector or matrix
  pca - Principal components analysis
  perctl - computation of percentils
  quart - computation of quartiles
  regress - regression coefficients of two variables
  sample - Sampling with replacement
  samplef - sample with replacement from a population and frequences of his values.
  samwr - Sampling without replacement
  st_deviation - standard deviation (row or column-wise) of vector/matrix entries
  stdev - standard deviation (row or column-wise) of vector/matrix entries
  stdevf - standard deviation
  strange - range
  tabul - frequency of values of a matrix or vector
  thrownan - eliminates nan values
  trimmean - trimmed mean of a vector or a matrix
  variance - variance of the values of a vector or matrix
  variancef - standard deviation of the values of a vector or matrix