I may be wrong, but I don't think that there's any standard method to use in plotting with case weights. I can think of two approaches, however: (1) If you have a large sample, and if the range of the weights isn't too large, you could sample your observations with probability of inclusion in the plot proportional to the case weights. (2) You could plot the points with "size" proportional to the square root of the case weights (i.e., area proportional to the weights).
I hope that this helps, John
At 10:46 AM 9/10/2003 -0400, [EMAIL PROTECTED] wrote:
I am trying to make plots that take into account survey weights. This a
survey of the US population. To start with I want to explore the data using pairs,
plot, coplots and lattice. Are there specialized methods that handle survey
weights for plotting? Any pointers?
Anupam.
----------------------------------------------------- John Fox Department of Sociology McMaster University Hamilton, Ontario, Canada L8S 4M4 email: [EMAIL PROTECTED] phone: 905-525-9140x23604 web: www.socsci.mcmaster.ca/jfox
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