************************************************************
* Program:  C:\NHANES\CleanRecode_CheckWeight.sas          *
* Proposal: Check influential value vs. influential weight *
************************************************************;
libname NH "C:\your_dir";

/*change the name of the directory folder to the location that you saved your downloaded dataset
 from the sample code and dataset downloads module: for example "c:\nhanes\data"*/

/*Plot to check for influential value (cholesterol) vs. 
  influential weight (wtmec4yr) associated with that value             */

symbol1 value=dot height=.2;
proc gplot data=NH.demo_BP2b;
where ridstatr=2 and ridageyr>=20;* interviewed and examined(ridstatr=2), adults age 20+;
	plot wtmec4yr*lbxtc/frame;
	title 'NHANES 1999-2002, adults aged 20 years and older';
run;