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Partial Derivatives in R

Paul Heinrich Dietrich 
Quick question:

Which function do you use to calculate partial derivatives from a model
equation?

I've looked at deriv(), but think it gives derivatives, not partial
derivatives.  Of course my equation isn't this simple, but as an example,
I'm looking for something that let's you control whether it's a partial or
not, such as:

somefunction(y~a+bx, with respect to x, partial=TRUE)

Is there anything like this in R?

Thread (9 messages)

Paul Heinrich Dietrich Partial Derivatives in R May 10 Ravi Varadhan Partial Derivatives in R May 10 David Winsemius Partial Derivatives in R May 10 Spencer Graves Partial Derivatives in R May 10 Paul Heinrich Dietrich Partial Derivatives in R May 10 Paul Heinrich Dietrich Partial Derivatives in R May 11 Spencer Graves Partial Derivatives in R May 11 Paul Heinrich Dietrich Partial Derivatives in R May 12 Gabor Grothendieck Partial Derivatives in R May 12