Displaying 1 result from an estimated 1 matches for "numco".
2011 Dec 15
2
Data Manipulation - make diagonal matrix of each element of a matrix
Dear R list,
I have the following data:
set.seed(1)
n <- 5 # number of subjects
tt <- 3 # number of repeated observation per subject
numco <- 2 # number of covariates
x <- matrix(round(rnorm(n*numco),2), ncol=numco) # the actual covariates
x
> x
[,1] [,2]
[1,] -0.63 -0.82
[2,] 0.18 0.49
[3,] -0.84 0.74
[4,] 1.60 0.58
[5,] 0.33 -0.31
I need to form a matrix X such that
X = x11 0 0 x21 0...