Miriam van der Velde

2 Questions 2 Answers 0 Followers

Questions related from Miriam van der Velde

How to create a new variable containing the count of unique dates in SPSS or R?

I have a large dataset containing many dates per participant. I want to creat a new variable containing the number of unique dates per participant. I have been trying to figure this out but it...

07 November 2023 4,790 3 View

How to select the earliest and the latest date among several date values in SPSS using syntax?

I have more than a hundred date variables in SPSS. I want to, for each case, select the earliest date of the 100 date values and the latest date and recode these into new variables. Is there a...

22 March 2023 4,838 3 View