WilDsCOP
> However, i have some questions about this : The commands
>
> . gen month = substr(date, 3, 2)
> type mismatch
> r(109);
> . gen year = substr(date, 6, 4)
> type mismatch
> r(109);
>
> issues some sort of error. Why? I use Stata version 7.0 Also
> i'm curious
> about what does these commands are supposed to do ?
These commands should work if -date- is a string variable. Presumably
-date- is a numeric variable in your data.
-substr()- extracts a substring, as documented at [R] functions
or on-line help for -functions-.
> Anyway, thanks to Toyoto Iwata again (who actually wrote me
> the whole code)
> for directing me to the command
> . egen quarter = group(month)
> This does the whole thing (what does this command actually
> do?). I solved
> my problem (For future reference, i paste them below of this e-mail).
What -egen, group()- does is documented at [R] egen and
in the help for -egen-.
Nick
[email protected]
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