topic Re: ProcTRAJ: OUSTAT not correct time scale in graph in Statistical Procedures

ProcTRAJ: OUSTAT not correct time scale in graph

JLamothe — Wed, 13 Jul 2016 14:55:39 GMT

I'm using this syntax to study depression profiles over time, however when I try to view my findings in a graph I notice that the OS is not displaying the same time scale I entered time as a function of the different weeks (0 for 0 weeks, 0.6 for 6 weeks, 2.2 for 22 weeks and 5.0 for 5 weeks), yet the graph shows 0.0, 2.00, 4.00, 6.00 etc. What am I doing wrong?

proc traj data=tp2 out=of outstat=os outplot=op outest=oe;
var T0BDIMEAN--T3BDIMEAN;
indep T0--T3 ;
MODEL CNORM ;
MIN 0;
MAX 63;  // **BDI total score**
NGROUPS 3;
ORDER 1 1 1 ;
ID ID;
RUN;
%TRAJPLOT (op, os,'Depression Trajectories', ' ', 'Depression', 'Time');

Re: ProcTRAJ: OUSTAT not correct time scale in graph

Reeza — Wed, 13 Jul 2016 14:59:14 GMT

You'll have to check the macro code.

This isn't a SAS proc...which version are you using?

Re: ProcTRAJ: OUSTAT not correct time scale in graph

Rick_SAS — Wed, 13 Jul 2016 15:00:39 GMT

For anyone who is not aware of PROC TRAJ, it is a user-supplied procedure. For documentation and download, see

http://www.andrew.cmu.edu/user/bjones/

Re: ProcTRAJ: OUSTAT not correct time scale in graph

JLamothe — Wed, 13 Jul 2016 15:13:38 GMT

Rick_SAS is correct. ProcTRAJ was developped by a user but is used quite frequently. I just don't understand why the time scale is radically different.

Re: ProcTRAJ: OUSTAT not correct time scale in graph

JLamothe — Mon, 18 Jul 2016 15:57:22 GMT

Hi,

I actually found the answer. I had originally coded my different time points as 0.00, 0.60, 2.2 and 5.00 for the number of weeks divided by 10. I recoded the values to 0.00, 6.00, 22.00 and 50,00 for the actual number of weeks and it fixed the problem. Maybe the graphic option has a harder time with decimals. I still don't know what the problem was but I found the solution. If this happens to you try recoding the time points into another format.

Thanks everyone!