Keywords:  r(459)
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Search of official help files, FAQs, Examples, SJs, and STBs
[P]     error . . . . . . . . . . . . . . . . . . . . . . . .  Return code 459
        something that should be true of your data is not;
        This is the generic form of this message; more likely, you
        will see messages such as "y must be between 0 and 1" or
        "x not positive".  You have attempted to do something that,
        given your data, does not make sense.