Hi John,
thanks for the suggestion.  What would one consider as large range?
> summary(finalwt)
   Min. 1st Qu.  Median    Mean          3rd Qu.             Max. 
    1.8   192.1   462.7      872.8          1018.0          67150.0
The sample is large: about 250,000.
How large a sample should one draw from the sample? There are also plenty of 
missing values.
Anupam.



In a message dated 9/12/03 10:48:06 PM Pacific Daylight Time, 
jfox@mcmaster.ca writes:

> Dear Anupam,
> 
> 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
> 
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