topic Re: Creating an ROC Curve with Weighted Sample in Statistical Procedures

Creating an ROC Curve with Weighted Sample

gabybarber — Thu, 07 Jan 2021 19:51:53 GMT

I am trying to generate an ROC curve using the PROC LOGISTIC procedure (see example below that I am using as a guide):

descending data = pinedat plots=effect plots=ROC(id=prob);

class alc /descending param = glm;

model y = age alc ;

roc 'Age' age;

roc 'Alcohol' alc;

roc 'Age & Alcohol' age alc ;

roccontrast reference('Age & Alcohol') /estimate ;

However, my sample is weighted, and I'm not sure how to modify this to be used with PROC SURVEYLOGISTIC. Any help would be much appreciated. Thanks!

Re: Creating an ROC Curve with Weighted Sample

ballardw — Thu, 07 Jan 2021 20:20:56 GMT

Does your data come from a complex weighting scheme? If not then perhaps all you need is the Weight statement in Proc Logistic.

Surveylogistic doesn't currently do plots.

https://documentation.sas.com/?cdcId=pgmsascdc&cdcVersion=9.4_3.4&docsetId=statug&docsetTarget=statug_surveylogistic_syntax01.htm&locale=en

Re: Creating an ROC Curve with Weighted Sample

gabybarber — Thu, 07 Jan 2021 21:28:00 GMT

My data (PRAMS data from the CDC) does have a complex sample design. Do you happen to know how to do an ROC curve with data that has a complex sample design?

Thanks!

Re: Creating an ROC Curve with Weighted Sample

ballardw — Thu, 07 Jan 2021 23:14:54 GMT

@gabybarber wrote:
My data (PRAMS data from the CDC) does have a complex sample design. Do you happen to know how to do an ROC curve with data that has a complex sample design?

Thanks!

I think this paper may help: https://support.sas.com/resources/papers/proceedings14/SAS404-2014.pdf

Google: SAS Logistic ROC Pred Surveylogistic

Re: Creating an ROC Curve with Weighted Sample

gabybarber — Fri, 08 Jan 2021 00:22:00 GMT

Thanks!