topic Re: KM-curve failure plot and modifying the y-axis - issues with macro in Graphics Programming

KM-curve failure plot and modifying the y-axis - issues with macro

KPCklebspn — Thu, 07 Mar 2019 15:29:19 GMT

Hi everyone, I want to modify the y axis on my KM curve (failure). I found the macro online, but when I run below I get an error (attached) in the macro. Is there something I need to put before this? I'm really having a hard time with how macros work

%ProvideSurvivalMacros
%let yOptions = label="Failure"linearopts=(viewmin=0 viewmax=0.2 tickvaluelist=(0 .05 .1 .15 .2));
%CompileSurvivalTemplates

proc lifetest data = ammihc1 plots=survival(failure);
time survtime*outcome(0); run;

Re: KM-curve failure plot and modifying the y-axis - issues with macro

Rick_SAS — Thu, 07 Mar 2019 17:39:39 GMT

Did you actually execute the source code that defines the macros?

The SAS/STAT documentation provides instructions about how to save the macro to a text file.

You can then %INCLUDE the contents of the text file, which will define several macros, including the ones you mention.

Also, put a space before the LINEAROPTS keyword.

Re: KM-curve failure plot and modifying the y-axis - issues with macro

KPCklebspn — Tue, 19 Mar 2019 22:49:25 GMT

Hi Rick, thanks so much for the reply...pardon my ignorance but I am not super familiar with macros. What does "executing the source code that defines the macros" mean/how do I do that? Thank you

Re: KM-curve failure plot and modifying the y-axis - issues with macro

Rick_SAS — Wed, 20 Mar 2019 14:12:05 GMT

I provided a link to the documentation. In that example, there is the line

%inc 'macros.tmp' / nosource;

When you run that statement (or one like it), SAS runs the contents of the 'macros.tmp' file, which contains the definition of the macros and enables SAS to know what code to run when you execute the line

%ProvideSurvivalMacros

At some point, you downloaded the macro definitions and stored them in a file. I think you need to %INCLUDE that file before you run the example. If the file is "C:/temp/MySASMacro.txt" you would execute

%include "C:/temp/MySASMacro.txt" / nosource;

Re: KM-curve failure plot and modifying the y-axis - issues with macro

KPCklebspn — Sat, 30 Mar 2019 20:06:15 GMT

Ok, so I've run this code:

data _null_;
%let url = //support.sas.com/documentation/onlinedoc/stat/ex_code/151;
infile "http:&url/templft.html" device=url;

file '/folders/myfolders/CPE/AMMI2019 reanalysis/KM macro.txt'; /*THIS LINE HAS MY FILE*/
retain pre 0;
input;
_infile_ = tranwrd(_infile_, '&', '&');
_infile_ = tranwrd(_infile_, '<' , '<');
if index(_infile_, '</pre>') then pre = 0;
if pre then put _infile_;
if index(_infile_, '<pre>') then pre = 1;
run;

%inc "/folders/myfolders/CPE/AMMI2019 reanalysis/KM macro.txt" / nosource; /*THIS LINE HAS MY FILE*/

%ProvideSurvivalMacros
%let yOptions = label="Failure" linearopts=(viewmin=0 viewmax=0.2 tickvaluelist=(0 .05 .1 .15 .2));
%CompileSurvivalTemplates

The KM macro.txt file is a file with stuff from this link: http://support.sas.com/documentation/onlinedoc/stat/ex_code/151/templft.html

The output when I run the above code is the PDF attached. No error...so I think it worked? How do I actually see the graph though?

Re: KM-curve failure plot and modifying the y-axis - issues with macro

KPCklebspn — Sat, 30 Mar 2019 20:06:17 GMT

Ok, so I've run this code:

data _null_;
%let url = //support.sas.com/documentation/onlinedoc/stat/ex_code/151;
infile "http:&url/templft.html" device=url;

%inc "/folders/myfolders/CPE/AMMI2019 reanalysis/KM macro.txt" / nosource; /*THIS LINE HAS MY FILE*/

%ProvideSurvivalMacros
%let yOptions = label="Failure" linearopts=(viewmin=0 viewmax=0.2 tickvaluelist=(0 .05 .1 .15 .2));
%CompileSurvivalTemplates

The KM macro.txt file is a file with stuff from this link: http://support.sas.com/documentation/onlinedoc/stat/ex_code/151/templft.html

The output when I run the above code is the PDF attached. No error...so I think it worked? How do I actually see the graph though?

Re: KM-curve failure plot and modifying the y-axis - issues with macro

Rick_SAS — Sat, 30 Mar 2019 22:43:14 GMT

Now run PROC LIFETEST. It will use the survival templates that you just compiled. The SAS/STAT documentation has many examples.