[R] Expressions and Functions

Douglas Bates bates at stat.wisc.edu
Fri Nov 14 15:31:41 CET 2003

Would it work to use deriv with the optional function.arg argument?

In some ways deriv is just a wrapper around repeated calls to D. (It
does a bit more than that but you could think of it that way.)

Erin Hodgess <hodgess at gator.uhd.edu> writes:

> Dear R People:
> When the D function is used for a symbolic derivative,
> an expression is returned, which is fine.
> How do you change that expression to a function, please?
> I've been experimenting with substitute and deparse, but no success
> yet.
> This is R 1.8.0 for Windows.
> thanks in advance for the help!
> Sincerely,
> Erin Hodgess
> mailto: hodgess at gator.uhd.edu
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> R-help at stat.math.ethz.ch mailing list
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Douglas Bates                            bates at stat.wisc.edu
Statistics Department                    608/262-2598
University of Wisconsin - Madison        http://www.stat.wisc.edu/~bates/

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