I would like to produce a TxN matrix from a set of N individual series. The issue is that there are time periods with NAs in each of the series. I want to keep track of the NAs in the matrix.

To solve the problem, I tried two possibilities (below), but neither worked. The output is a TxN matrix pricesmat. The individual series with the NAs are stored as subcomp{!j}_pc, where j=1,...,N indexes each individual series.

Thank you.

**ATTEMPT 1. Error is 'Pricesmat(T,1) is an illegal or reserved name'**

matrix(T,N) pricesmat = @zeros(T,N)

for !j = 1 to N

stomna(subcomp{!j}_pc,pricesmat(T,!j))

next

**ATTEMPT 2. Error is 'Nonumeric argument in subcomp1_v'**

matrix(T,N) pricesmat = @zeros(T,N)

for !j = 1 to N

vector(T) subcomp{!j}_v

stomna(subcomp{!j}_pc,subcomp{!j}_v)

pricesmat(T,!j) = subcomp{!j}_v

next