var
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Compute the variance of x.
- Usage 1
var(xvector)- Result 1
- The variance v of vector x.
v = sumi = 0..ncol(x) ( (xi - avr(x))^2 )
Usage:
var(xv)
Result type:
scalar
The covariance of the vector xv and yv.
Usage:
var(xv,ys)
Result type:
scalar
The covariance matrix for the column vector of the matrix xM. The column average a[j] is either calculated with avr(xM[*,j]) or through the argument y (a[j] = yS or a[j] = yV[j]).
Usage:
var(xm)
var(xm,ys)
var(xm,yv)
Result type:
matrix - (ncol(xm) x ncol(xm))
