Exploratory Analysis of Survey Data. Lisa Cannon Luke Peterson. Presentation Outline. Density Estimation Nonparametric kernel density estimates Properties of kernel density estimators Other methods Graphical Displays NHANES data. Three features that distinguish survey data:.
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proc univariate data=explore.glyco noprint;
histogram / nrows=2 cfill=red midpoints=3 to 15 by 0.5 cgrid=grayDD;
proc surveyselect data=explore.glyco out=plotdata method=pps sampsize=300 seed=3452;
symbol1 v=circle i=r c=black ci=green w=2;
proc gplot data=plotdata;