Heleen Sinte Maartensdijk
>
>
> Is there a possibility to abbreviate the answer categories
> of a variable.
> For example: A variable has answercategories existing of 5
> numbers. These
> are codes, and only the first number of the answercategorie
> is important. So
> you want to change the values of the particular variable
> from the 5 numbers
> to only the first number. Say 58722 53879 have to become
> 5, and 38905 39648
> have to become 3, etcetera. How can you reach this result?
If your codes are held as a string variable, use
gen str1 newcode = substr(code,1,1)
In Stata 8 the "str1" is unnecessary.
If your codes are held as a numeric variable
gen newcode = real(substr(string(code),1,1))
or
gen newcode = int(code/10000)
Either way, you are well advised for future reference to check out the
functions available.
Nick
[email protected]
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