[R] a symbolic derivative question, please
erinm.hodgess at gmail.com
Fri Jan 9 18:31:56 CET 2015
I have the following:
zzz <- expression(y*r1 + r2)
Error in deriv.default(zzz,c("r1","r2")) :
Function '`[`' is not in the derivatives table
What am I missing, please? Since y is not one of the variables that is
being "acted upon", why is the  an issue, please?
Thank you for any help!
Department of Mathematical and Statistics
University of Houston - Downtown
mailto: erinm.hodgess at gmail.com
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