spss aggregate data

Hi,

I have a quite large dataset, with cases represented by individuals. One individual may be represented many times, but with different data each time. I'm now trying to aggregate this data, so that each individual is only one case. For some variables, I can use the "sum" or the "first" function, but some variables are such that I would like to keep all of them as separate entries.

For example, individual x has five times had some kind of event, and I want to keep all of the different kinds of events for individual x.

I'm using spss.

Does anyone know if this is possible?

Best regards,
Hanna Edberg