How do I incorporate 'or' in to a stata command for generating a new variable

[Oliver Edward Webster]

Hi Statalist,

I am trying to create a new variable (choice) which notes whether a graduate attended (collatt) one of their first or second choice universities (dummies of which being collprf1 and collprf2).
I have generated a new variable: gen 'choice'=0
following this I need to use: replace choice =1 if collatt==collprf1 OR collatt==collprf2
however I am unsure how to incorporate this either/or dimension in to the command.
any help would be greatly appreciated.

Oliver

[Leonardo Guizzetti]

replace choice = 1 if collatt==collprf1 | collatt==collprf2

See the output of -help operator- for the list of arithmetic, logical and relational operators.

[Rich Goldstein]

instead of what you have, substitute the "pipe" character (vertical bar) for your "OR"; e.g.,

replace choice =1 if collatt==collprf1 | collatt==collprf2

[Oliver Edward Webster]

thanks a lot, great help!

[Clyde Schechter]

Better still, there is no reason to use a -gen choice = 0- command followed by a -replace-. It can all be done in one line, and can be done with less typing:

gen choice = inlist(collatt, collprf1, collprf2)