Dear Ladies and Gentlemen,
i am doing a project at the moment at the Transport Insitute of the
DLR (German Aerospace Centre, Institut fr Verkehrsforschung).
The focus of the project is to analyse a time use-study.
Various people had to report what they were doing on two subsequent
days (their time use from midnight to midnight).
For that, one day is splitted into 288 five-minute-segments. In each
of these 288 segments, one of 231 activities is available.
For every person, there are 288 variables in the SPSS-data set with
five-minute-segments (and with activities like sleep etc.), which
define that persons time use over one day.
My problem is related to that sort of data-structure:
I want to add the time-use for one person for all 288 segments.
With commands like count, recode etc. i am just able to recode/count
ONE variable and to get ONE new variable.
Is it possible to count / produce frequencies etc. for all of these
288 in one operation?
Eg to find out, that in 150 of the 288 five-minute segments that
person is watching TV (eg acitivity number 38)?
Does anyone has some experience with time-use research with SPSS
with such sequence-analysis with SPSS?
It would be great to get some hints.
Is there any literature concerning these problems?
Thank you very much!