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datafile
2006 Feb 16
1
cv.glm function error message in a loop
..., the code is below. I can send more
detail if required.
Thank you very much for your help!!! Maria
"data" is a dataframe with the first 227 columns with fish
presence/absence data (=response), then 10 columns of predictor
variables.
Code that doesn't work:
for (i in 1:length(datafish)) #this is 227 columns within "data"
{
#run glm & step of fish.[i] with all parameters no interactions
modelfish<-glm(data[,i]~ECO.NAME+ISLAND+DISTANCE.EST+DEPTH500M,
binomial)
stepmodfi<-step(modelfish,trace=1,scope=list(lower= ~1,
upper=~ECO.NAME+ISLAND+DISTANCE.EST+DEPTH500M...