Scilab 6.0.0
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See the recommended documentation of this function
covar
covariance of two variables
Syntax
s=covar(x,y,fre)
Arguments
- x
real or complex vector
- y
real or complex vector
- fre
matrix of type length(x) x length(y)
Description
covar(x,y,fre)
computes the covariance of two variables x and y.
fre is a matrix of dimensions length(x) x length(y). In fre the element
of indices (i,j) corresponds to the value or number or frequencies of
x_i&y_j.
References
Wonacott, T.H. & Wonacott, R.J.; Introductory Statistics, J.Wiley & Sons, 1990.
Examples
x=[10 20 30 40] y=[10 20 30 40] fre=[.20 .04 .01 0; .10 .36 .09 0; 0 .05 .10 0; 0 0 0 .05] s=covar(x,y,fre)
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