Splus graphing

[Dongyuan Xing <dyxing2002@yahoo.com>]

I have a bunch of subjects. I want to draw a scatter plot for each of them with one plot per page.  I know in SAS, with a by statement in ?proc plot ?,  I can easily do it.

 Could somebody please tell me, In Splus, what?s the ?by? statement in Plot function?   I know Splus has function to create plot for each subject and put them on one page. But I want the plots to be on separate page.  can I do the plots without for loop?

 Thanks.

 Dong

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