Missing value

Hello, I have created a quantitative variable “AGE”
and I wish to program a modality “999” for missing value

Hi @nohandoye and welcome to the community!

There are several ways to do that:

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Thanks you very much @hakan_cetinkaya. I am trying to do that

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@hakan_cetinkaya would like to use a calculate type question. How to define a modality (999) as a missing value?
For example, I have a variable Q7 AGE?
My program if(${Q7}=999,?,?)

@nohandoye, you could also do it as outlined in the post discussed previously:

Thanks you very much

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