Dear all,
I have a problem with a variable.
the variable is "prof "and takes the following values:
0,1,2,3,4,5,6,7,8,9,A,B, R
i get a type mismatch if i do the following:
sum lwage if prof_1d==1
type mismatch
but it allows me the sum if i write :
sum lwage if prof_1d=="1"
Variable | Obs Mean Std. Dev. Min Max
-------------+--------------------------------------------------------
lwage | 18608 1.564116 .5385916 -2.387844 5.754426
The format of the variable is:
variable name display format
-----------------------------
prof_1d %1s
I tried to change the format but it does not work out:
destring prof_1d, replace float
prof_1d contains nonnumeric characters; no replace
I also tried to replace letter in numbers:
replace prof_1d=10 if prof_1d=="A"
type mismatch
r(109);
. replace prof_1d=10 if prof_1d==A
A not found
How can i deal with this considering that i need the variable in a
regression?
I appreciate any help,
Thanks you all in advance,
Cinzia
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