Levelsof unable to recognize contents of local macro

[Paul Shlapa]

Dear Experts,

I need your assistance with a piece of code, where for some reason levelsof does not read a macro select2 in group 4, although it exists. I have lost it after 2 days of trying to get it right.
A .dta and .do Files are also being attached to this post.
Hope you can help me to get it right.

su groups, meanonly
forvalues i = 1/`r(max)' {
    
foreach v in "Coating1_sub" "PumpStatus_sub" "EX_sub" {
    
    egen tag`v' = tag(groups `v')
    egen ndistinct`v' = total(tag`v'), by(groups)
    
    replace `v' = . if ndistinct`v' < 2 /*set observations to missing if there are less that 2 groups in variable*/
    drop tag`v' ndistinct`v'

    capt confirm string var `v'
    
    if ( _rc > 0 ) {
            capture assert missing(`v') if groups == `i'
        
        if ( _rc > 0 ) {
                local varlist_`i' = "`varlist_`i''" + " " + "i.`v'"
                local varlist_var`i' = "`varlist_var`i''" + " " + "`v'"
                di "`varlist_`i''"
        }
    }
}
    
    su obs if groups == `i', meanonly
    local PumpName = new_PumpName[r(min)]
    
    quietly: summarize Volume if groups == `i'
    local m_min`i' = r(min)
    local m_max`i' = r(max)
    
    capture unab `varlist_var`i'' : ``var''
    local variable_count = wordcount("`varlist_var`i''")
    tokenize "`varlist_var`i''"
    
    capture noisily reg log_GlobalPrice Volume `varlist_`i'' if groups == `i', robust baselevels
    
    local select1 "`1'"
    local select2 "`2'"
    local select2 "`3'"
            
//extract coefficients of variables
forvalues k = 1/`variable_count' {

    levelsof `select`k'' if e(sample), local(gcs)
    foreach gc of local gcs {
    replace `select`k''_var = _b[`gc'.`select`k''] if groups == `i' & `select`k'' == `gc'
    }
}
}

Sincerely,

Pavlo

[Paul Shlapa]

Problem solved, local select2 "`3'" should be local select3 "`3'". A silly typo.