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collapse or Roger Newman's xcollapse with string variables
collapse or Roger Newman's xcollapse with string variables

Tried help (and the help for xcollapse) but can't get an answer that makes sense to me.
I have three variables for country identifiers: country countrynum and contab. The first is str24, the second is integer, and the third is str3. I have the fist two in another data set but want to include the third by a merge.

But when I type

xcollapse country contab,by(countrynum) saving (gallupcontab,replace) I get:

type mismatch

and I get the same error message for:

collapse country contab,by(countrynum)

Any help would be appreciated.

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