[R] RuleFit & quantreg: partial dependence plots; showing an effect

[Mark Difford]

Dear List,

I would greatly appreciate help on the following matter:

The RuleFit program of Professor Friedman uses partial dependence plots
to explore the effect of an explanatory variable on the response
variable, after accounting for the average effects of the other
variables.  The plot method [plot(summary(rq(y ~ x1 + x2,
t=seq(.1,.9,.05))))] of Professor Koenker's quantreg program appears to
do the same thing.


Question:
Is there a difference between these two types of plot in the manner in which they depict the relationship between explanatory variables and the response variable ?

Thank you inav for your help.

Regards,
Mark Difford.

------------------------------------------------------------- 
Mark Difford
Ph.D. candidate, Botany Department,
Nelson Mandela Metropolitan University,
Port Elizabeth, SA.