Daer statalisters:
I am trying to build a matrix that has k-1 rows where k is the number of words in varlist.
I am constructing the matrix by adding one row after another and it works.
(In the code below I am just filling in -1's, they are replaced later)
I then try save the variable names of the x-variables (all variables after the first one). Specifically I'd use the variable names as rownames for the matrix.
I can strip off the first word in varlist with
regexr("`varlist'","`1'","")
. Unfortunately when trying to assign this to a local macro the length of the string
is cut to 80 characters.
Here is the relevant code:
local k : word count `varlist'
tempname A
matrix `A'=(-1)
matrix input `influence_mat'=(-1)
while (rowsof(`influence_mat')< `k'-1) {
matrix `influence_mat' = `influence_mat' \ `A'
}
tokenize `varlist'
local varlist1 = regexr("`varlist'","`1'","") /* works, but cuts down to 80? characters */
matrix rownames `influence_mat' = `varlist1' /* does not work, conformability error */
/* because varlist1 has too few entries */
Any suggestions ? I also would be fine with using hte names as a second column in the matrix
but it doesn't seem like stata likes string entries in columns.
Thanks,
Matt
Matthias Schonlau
Statistician, RAND
412-683-2300 x4917
http://www.rand.org/statistics/bios/stat_schonlau_matthias.html
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