Bootsvar and Permvar not found

[Maria Casquitos]

Hi!

I've been trying to implement some permutations on a toy data set, using https://journals.sagepub.com/doi/pdf...867X1101000410 (Stata tip 92), and whenever I run this code:

generate id=_n
generate double u=runiform()
sort u
local type: type permvar
generate `type´ upermvar=permvar[id]

the error "permvar not found" appears.

Likewise, whenever I try to run this code:

generate u=ceil(runiform()*_N)
generate ubootsvar=bootsvar[u]

the error 'bootsvar not found' apperas.

Does anyone know how can I fix this problem? I've been looking at forums and I haven't seen any posts related to this problem.

Thank you!

[Nick Cox]

You must create these variables yourself. Or, if the variable you want to push through this code has a different name, use that instead.