topic Regression modeling in Statistical Procedures

Regression modeling

rashmiram0522 — Tue, 26 Dec 2017 20:33:50 GMT

Hi,

I am trying to build regression model but I am getting an error "Variable not found" whereas variable is present in the dataset?

This is the code I am writing

PROC REG data=Smoking;
MODEL Pressure = Smoker;
RUN;
QUIT;

Thanks,

Rashmi.

Re: Regression modeling

stat_sas — Tue, 26 Dec 2017 20:55:32 GMT

Hi,

Please share your log and a sample data. This will help community members to respond accordingly.

Re: Regression modeling

rashmiram0522 — Tue, 26 Dec 2017 21:03:36 GMT

Hi,

This is the log:

1 OPTIONS NONOTES NOSTIMER NOSOURCE NOSYNTAXCHECK;

62 PROC REG data=Smoking;

63 MODEL Pressure = Smoker;

ERROR: Variable PRESSURE not found.

NOTE: The previous statement has been deleted.

64 RUN;

WARNING: No variables specified for an SSCP matrix. Execution terminating.

NOTE: PROCEDURE REG used (Total process time):

real time 0.00 seconds

CPU time 0.00 seconds

65 QUIT;

68 OPTIONS NONOTES NOSTIMER NOSOURCE NOSYNTAXCHECK;

I have attached my data set here.

Thanks.

Re: Regression modeling

stat_sas — Tue, 26 Dec 2017 21:17:36 GMT

Problem seems to be with smoker variable which is a character type. proc reg requires numeric predictors.

Re: Regression modeling

PGStats — Tue, 26 Dec 2017 22:57:55 GMT

Please check the names and types of your variables in your dataset.Do not confuse the name and the label of variables. If SMOKER is character, you will need to switch to proc GLM and declare SMOKER in a CLASS statement.

Re: Regression modeling

rashmiram0522 — Sat, 30 Dec 2017 03:17:01 GMT

Thank you.