How do I select cases based on multiple variables

[Liz90]

For my research I would like to keep only certain record_ids.
I have multiple measurements per day, which I have to break down to only 1 measurement per day, based on the 'accuracy' of that measurement.
I have created an accuracy variable '..._choice', which gives numbers to whether it is a first choice variable, or a second, third etc.

So how do I select/keep the cases with 1 measurement per day with the highest choice?

Thanks in advance!

 

[Karabiner]

You could maybe describe the structure of your datafile, for eacxampe what is contained in the rows and what is contained in the columns.

With kind regards

Karabiner