I am trying to rename multiple variables corresponding to baseline characteristics, endline characteristics and endline2 characertistics into wave1 wave2 and wave3 so that I can reshape the data into a long format based on these three time periods.

I used the following codes however it does not seem to work despite multiple tries at reformatting it, STATA gives me an error message everytime:

local vars "asset_tot_value iagri_month ibusiness_month ipaidlabor_month ranimals_month ctotal_pcmonth"

foreach k of local vars {

rename `k'_bsl `k'1
rename `k'_end `k'2
rename `k'_fup `k'3

}

Is there something wrong with how I am coding this?