Dear community,   I don't understand why I have this error message when I want to run my macro. Could you help me please ?     ... View more

Hello,   I have a continuous variable (age) and I would like to create a new variable (age2) which is a categorical (0-20; 21-40;41-60;61-80;81-100). I used the format but it doesn't work. Could you help me ?   Thanks   R                   ... View more

Dear all,   I have a row (ImplantNYHA) with different values (0,1,2,3,4,99). I would like to change the 0 and 99 values by "." and keep the 1, 2 , 3 and 4 as they are I tried  data try; set ICDCRTdatabase; if ImplantNYHA = 99 then "."; if ImplantNYHA = 0 then "."; then ImplantNYHA = ImplantNYHA; run;   I attached the output.   Thank you !   R ... View more

Hi ! Please I need you help+++ I have a time variable HH:MM called "timestop" and I would like to create a new categorical variable "timestopnight" stating 1 if the timestop was between 23:00 and 7:00 and 0 if the timestop was between 07:00 and 23:00. I have tried several codes like the following but none worked.   data dataset ; set dataset; if timestop < '07:00't then timestopnight=1; if timestop > '23:00't then timestopnight=1; if  '07:00't =<timestop =< '23:00't then timestopnight=0; run;     Thanks a lot for your help 🙏   Rodrigue     ... View more