R help - Oct 2005 - generating response curves

Hello 
does anyone know how to visualize a response curve based on a regression model
with lines rather than dots. Having a large number of parameters the following
formula is to time consuming. Perhaps a built in function exists to speed up the
process.

Model1<-a~b
#Setting the scale extent
min(area)
max(area)
avals<-seq(0,10,.1)
# generating the plot
plot(area,incidence, las=1)
lines(avals,predict(model4,list(area=avals),type="response"))

Thanks in advance
Christian



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On Sat, 2005-10-15 at 18:00 +0200, Christian Jones
wrote:
> 
> Hello 
> does anyone know how to visualize a response curve based on a
> regression model with lines rather than dots. Having a large number of
> parameters the following formula is to time consuming. Perhaps a built
> in function exists to speed up the process.
> 
> Model1<-a~b
> #Setting the scale extent
> min(area)
> max(area)
> avals<-seq(0,10,.1)
> # generating the plot
> plot(area,incidence, las=1)
> lines(avals,predict(model4,list(area=avals),type="response"))
> 
> Thanks in advance
> Christian

Did you review the example in ?predict.lm?

HTH,

Marc Schwartz