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The NOCENSPLOT option in the PROC LIFETEST

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The NOCENSPLOT option in the PROC LIFETEST

Dear all,

Now I'm trying to draw a Kaplan-Meier Curve without the plot of censored observations by using proc Lifetest (The SAS code is as follows).

However the NOCENSPLOT option does not work well on  my environment (SAS ver.9.2.), though the plot of censored observations can be suppressedby using CENSOREDSYMBOL option (i.e. CENSOREDSYMBOL=none). Why is this?

Additionally, if the ODS GRAPHICS  option is specified (i.e. "ods graphics on;"), the plot of censored observations cannot be suppressedby using NOCENSPLOT option or CENSOREDSYMBOL option.

How can I get the K-M curve without the plot of censored observations when the ODS GRAPHICS option is specified?

I'd appreciate it if someone would tell me how to do it.

Thanks in advance.

proc format;
   value risk 1='ALL' 2='AML-Low Risk' 3='AML-High Risk';

data BMT;
   input Group T Status @@;
   format Group risk.;
   label T='Disease Free Time';
   datalines;
1 2081 0 1 1602 0 1 1496 0 1 1462 0 1 1433 0
1 1377 0 1 1330 0 1  996 0 1  226 0 1 1199 0
1 1111 0 1  530 0 1 1182 0 1 1167 0 1  418 1
1  383 1 1  276 1 1  104 1 1  609 1 1  172 1
1  487 1 1  662 1 1  194 1 1  230 1 1  526 1
1  122 1 1  129 1 1   74 1 1  122 1 1   86 1
1  466 1 1  192 1 1  109 1 1   55 1 1    1 1
1  107 1 1  110 1 1  332 1 2 2569 0 2 2506 0
2 2409 0 2 2218 0 2 1857 0 2 1829 0 2 1562 0
2 1470 0 2 1363 0 2 1030 0 2  860 0 2 1258 0
2 2246 0 2 1870 0 2 1799 0 2 1709 0 2 1674 0
2 1568 0 2 1527 0 2 1324 0 2  957 0 2  932 0
2  847 0 2  848 0 2 1850 0 2 1843 0 2 1535 0
2 1447 0 2 1384 0 2  414 1 2 2204 1 2 1063 1
2  481 1 2  105 1 2  641 1 2  390 1 2  288 1
2  421 1 2   79 1 2  748 1 2  486 1 2   48 1
2  272 1 2 1074 1 2  381 1 2   10 1 2   53 1
2   80 1 2   35 1 2  248 1 2  704 1 2  211 1
2  219 1 2  606 1 3 2640 0 3 2430 0 3 2252 0
3 2140 0 3 2133 0 3 1238 0 3 1631 0 3 2024 0
3 1345 0 3 1136 0 3  845 0 3  422 1 3  162 1
3   84 1 3  100 1 3    2 1 3   47 1 3  242 1
3  456 1 3  268 1 3  318 1 3   32 1 3  467 1
3   47 1 3  390 1 3  183 1 3  105 1 3  115 1
3  164 1 3   93 1 3  120 1 3   80 1 3  677 1
3   64 1 3  168 1 3   74 1 3   16 1 3  157 1
3  625 1 3   48 1 3  273 1 3   63 1 3   76 1
3  113 1 3  363 1
;
run;

proc lifetest data=BMT plots=survival(atrisk=0 to 2500 by 500) NOCENSPLOT;
   time T * Status(0);
   strata Group;
run;

proc lifetest data=BMT plots=survival(atrisk=0 to 2500 by 500) CENSOREDSYMBOL=NONE;

   time T * Status(0);

   strata Group;

run;

ods graphics on;
proc lifetest data=BMT plots=survival(atrisk=0 to 2500 by 500) CENSOREDSYMBOL=NONE;
   time T * Status(0);
   strata Group;
run;
ods graphics off;

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