Combining Two Variables?

Combining Two Variables?

by Kim Grelli -

Hi,


Any suggestions on how to combine two categorical variables into 1 variable?


For more detailed explanation: I have one categorical variable that I generated to identify babies with an MRI at a certain age and a second categorical variable to identify babies with a second MRI at a certain age. I would like to combine both columns of data to reflect all babies with an MRI at that age. None of the values overlap.


Thanks!

Kim

Re: Combining Two Variables?

by Kristen -

If there is no overlap then this will work: 


set obs 10


gen A = 1 in 1/5

gen B = 2 in 6/10

gen C = A

replace C = B if C==.