Description Usage Arguments Details Value Author(s) See Also Examples
Computes Xa where X is an n by p matrix, and a is a random vector of length p.
1 2 3 4 | randomLinComb(X, seed = NULL)
## S3 method for class 'lm'
randomLinComb(X, seed=NULL)
|
X |
An n by p matrix or data frame. For the lm
method, X is a linear regression model, and |
seed |
If not NULL, use this to initialize the random number generator |
The matrix X is first scaled and centered. a is computed to have random uniform components on (-1,1).
A vector of length n.
Sanford Weisberg, sandy@stat.umn.edu
1 | randomLinComb(matrix(rnorm(9),ncol=3))
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