Addons/stats/base/multivariate

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stats/base/multivariate  - multivariate utilities

spdev v sum of products of deviations
cov v (co)variance
covp v population (co)variance
corr v correlation
lsfit v least-squares fit
regression v multiple regression

spdev

spdev (v) sum of products of deviations

cov

cov (v) (co)variance

covp

covp (v) population (co)variance

corr

corr (v) correlation

lsfit

lsfit (v) least-squares fit

form: n lsfit xy
coefficients of polynomial fitting data points
using least squares approximation.
xy = 2 row matrix of x ,: y
n  = order of polynomial

regression

regression (v) multiple regression

form:  independent regression dependent
   dependent = vector of n observations (Y value)
 independent = n by p matrix of n observations for p independent
               variables (X value)

returns: formatted values