Hello,   I am in need of some help.   I have a data set that that contains 7000 observations and one of the variables is wear-date. Wear date specifies the date the data was recorded. The format for wear date is (i.g. 11/9/2014).   I would like to create two data sets from one main data set. One for weekday observations and one for weekend observations. Therefore I need to sort dates by weekday and weekends.   I was told to use the "weekday function", however, I am not sure if this is in a data or proc step.   Any help would be appreciated, I am a beginner, and I am using SAS studio. Thank you.    Below is an example data set.   ID      wearDate   sed    wearTime (MIN) 281    11/9/14    667    984 282   11/10/14    792    1009 283    11/11/14    674    875 284    11/12/14    785    1029 285    11/13/14    684    909 286    11/14/14    662    878       ... View more

Hello,   I have a data set that is composed of participants and sedentary time. I want to create a new varible that is the average sedentary time for each participant.  Meaning that I only want one sedtime for each participant.   I need a new variable because it want to then regress the average sedentary time with other predictors variables.   I am running SAS on SAS studio and I am a beginnier. Any help would be welcome. Thanks   example data.   participant   Sedtime 1                     4 1                     3 1                     2 2                     1 2                      5 2                      3 3                      4 3                      5 3                      4   ... View more