@richaemi wrote:
I need to create a graph showing values over time by treatment group. Say I am looking at Hemoglobin as my variable. If I have a variable for each Hemoglobin at Baseline, Hemoglobin at 24hrs, Hemoglobin at 48 hrs, and Hemoglobin at 72hrs, and a variable for Treatment ID (Treatment A or Treatment B), is it possible to graph all of these values over time by Treatment ID in SAS?
Thanks!
Yes.
X axis value as the timepoint, Y axis variable as the measurement, Group by treatment. A number of different plot types may work.
data example;
input time meas trt;
datalines;
0 22 1
24 21 1
48 24 1
72 25 1
0 15 2
24 15 2
48 18 2
72 17 2
0 8 3
24 9 3
48 10 3
72 11 3
0 24 1
24 24 1
48 25 1
72 27 1
0 18 2
24 17 2
48 18 2
72 19 2
0 10 3
24 11 3
48 11 3
72 13 3
;
run;
proc sgplot data=example;
/* values*/
scatter x=time y=meas/group=trt;
/* fit straight line through with confidence bands for the mean*/
reg x=time y=meas/group=trt clm;
run;
If you want to connect points that would be a series plot but you need more information to avoid having the right end of the graph try to connect back to the left end.
