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2008 Jan 16
1
Probability weights with density estimation
...d the foreign package authors in particular. Importing from the SAS export fomat file was a snap. It consists of demographic data linked to laboratory measurements. Each subject has an associated sampling weight. I have gotten informative displays following the examples using kde2d() in V&R MASSe2 (more thanks), but these were unweighted analyses. The ratio of total cholesterol (TC) to HDL cholesterol is used clinically to estimate risk of future heart disease, and I am looking at how such ratios "divide" or intersect with the TC x HDL-C distribution. Rather than include all t...