topic Modify x-axis and y-axis in proc lifetest in Statistical Procedures

Modify x-axis and y-axis in proc lifetest

suhana1211 — Wed, 09 Feb 2022 18:21:25 GMT

HI,

I AM GENERATING KAPLAN MEIER CURVE IN SAS.

1. I WANT X-AXIS TO SHOW 0 TO 180, BY INTERVALS OF 30.

2. I WANT Y-AXIS TO BE FLIPPED; INSTEAD OF 0 TO 1, I WANT IT TO SHOW 1 TO 0 (TO HAVE THE CURVE FLIPPED). HOW DO I DO THIS IN THE BELOW PROC LIFETEST CODE? I TRIED YOPTIONS, XOPTIONS, PLOT OPTION, BUT NOTHING SEEM TO WORK.

PROC LIFETEST DATA=combo_by_state;
TIME SURVT*EVENT(0);
STRATA STATE;
WHERE PANDEMIC=1;
RUN;

Re: Modify x-axis and y-axis in proc lifetest

OsoGris — Wed, 09 Feb 2022 18:29:45 GMT

I think you want a "Failure plot" where Failure = 1 - Survival. Your code didn't show any plots option but you can use syntax like PLOTS=S(FAILURE) to get a failure plot that is the reverse of a survival plot.

Re: Modify x-axis and y-axis in proc lifetest

Reeza — Wed, 09 Feb 2022 18:41:12 GMT

For X Axis specify a timelist in the PROC LIFETEST

proc lifetest data=combo_by_state timelist=(0 to 180 by 30);

@suhana1211 wrote:

HI,

I AM GENERATING KAPLAN MEIER CURVE IN SAS.

1. I WANT X-AXIS TO SHOW 0 TO 180, BY INTERVALS OF 30.

2. I WANT Y-AXIS TO BE FLIPPED; INSTEAD OF 0 TO 1, I WANT IT TO SHOW 1 TO 0 (TO HAVE THE CURVE FLIPPED). HOW DO I DO THIS IN THE BELOW PROC LIFETEST CODE? I TRIED YOPTIONS, XOPTIONS, PLOT OPTION, BUT NOTHING SEEM TO WORK.

PROC LIFETEST DATA=combo_by_state;
TIME SURVT*EVENT(0);
STRATA STATE;
WHERE PANDEMIC=1;
RUN;

Re: Modify x-axis and y-axis in proc lifetest

suhana1211 — Wed, 09 Feb 2022 18:44:27 GMT

This is the solution to by question #2 - thank you!!

Re: Modify x-axis and y-axis in proc lifetest

suhana1211 — Wed, 09 Feb 2022 18:45:20 GMT

I tried that - didn't work. My x-axis still showing 0 to 180 by intervals of 50 (I want intervals of 30).

Re: Modify x-axis and y-axis in proc lifetest

suhana1211 — Wed, 09 Feb 2022 18:51:22 GMT

I tried that - didn't work. My x-axis still showing 0 to 180 by intervals of 50 (I want intervals of 30).

PROC LIFETEST DATA=combo_by_state
PLOTS=S(FAILURE)
TIMELIST=(0 TO 180 BY 30);
TIME SURVT*EVENT(0);
STRATA STATE;
WHERE PANDEMIC=1;
RUN;