[R] Expressions and Functions

[Douglas Bates]

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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-- 
Douglas Bates                            bates at stat.wisc.edu
Statistics Department                    608/262-2598
University of Wisconsin - Madison        http://www.stat.wisc.edu/~bates/