I have been using lattice xyplot and am quite pleased, and I can use the
type=c("b","g") to have it print gridlines into the page, yet if I want to
have a line plot with points on it, how do I get the xYplot to print
gridlines (I use Hmisc xYplot because of its bands method which allows
plotting of confidence intervals). Any suggestions? I have looked at the
panel functions but when I try it I get the gridlines but my data is gone.

 

So a simple example is below. I want to create the reference lines in the
lattice plot in the xYplot from Hmisc so I can keep the confidence intervals
filled.

 

x<-seq(1,10,1)

y<-seq(1,10,1)

ci<-y*.10

ciupper<-y+ci

cilower<-y-ci

 

xyplot(y~x, type=c("b","g"),plot.points = TRUE)#using lattice

 

xYplot(Cbind(y,cilower,ciupper)~x,col.fill="grey",plot.points =
TRUE,type=c("b"),method="filled bands")#using Hmisc

 

JOE

 


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