Hello,
I have the following data:
personID caretype date
1 primary 18000
1 primary 18001
1 specialty 18005
1 primary 18007
1 specialty 18008
1 specialty 18009
1 primary 18020
I would like to create a count variable where the count starts over every time it reaches the caretype value of "primary". For example, I would like my data to look like the following:
personID caretype date count
1 primary 18000 1
1 primary 18001 1
1 specialty 18005 2
1 primary 18007 1
1 specialty 18008 2
1 specialty 18009 3
1 primary 18020 1
Any ideas on how to do this?
Thank you!
data have;
input personID caretype $ date;
cards;
1 primary 18000
1 primary 18001
1 specialty 18005
1 primary 18007
1 specialty 18008
1 specialty 18009
1 primary 18020
;
data want;
set have;
if upcase(caretype)="PRIMARY" then count=1;
else count+1;
run;
proc print;run;
I think the retain statement needs to be used to make the count work....
data test;
input personID caretype $ date;
cards;
1 primary 18000
1 primary 18001
1 specialty 18005
1 primary 18007
1 specialty 18008
1 specialty 18009
1 primary 18020
;
data test2;
set test;
retain count;
if caretype = "primary" then count = 1;
else count = count + 1;
run;
you don't have to use retain if you change
count = count + 1;
to
count+1;
Perfect, thank you!
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