I have the following problem. I have measured a dose response curve
(binary response, continuous dose) on a grid of x,y positions. I would
like to produce a grey-level plot that shows the LD50 at each (x,y)
position.
I am thinking that I have to do something like
fit-glm(resp ~ x*y + dose, family
Hi Bill,
have a look at the following artificial example:
## Loading the package 'drc' (on CRAN)
library(drc)
## Generating dataset with four dose-response curves
finneyx4 - rbind(finney71, finney71, finney71, finney71)
## Generating artificial points (x,y)
## different pairs for each of the 4
