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disbinary
2007 Dec 13
1
Probelms on using gam(mgcv)
Dear all,
Following the help from gam(mgcv) help page, i tried to analyze my
dataset with all the default arguments. Unfortunately, it can't be run
successfully. I list the errors below.
#m.gam<-gam(mark~s(x,y)+s(lstday2004)+s(slope)+s(ndvi2004)+s(elevation)+s(disbinary),family=binomial(logit),data=point)
2007 Dec 12
0
Hep on using GAM() in R
Dear friends,
I met some problem on using GAM() function in R.
Any help or suggestions are greatly appreciated.
# My programs and problems are list below#
library(splines)
library(gam)
point<-read.csv("d:/gam.csv",sep=",",header=TRUE) #read the data
gam.opt<-gam(mark~lo(x,y,span=0.2)+lo(lstday2004,span=0.2)+lo(slope,span=0.2)+lo(ndvi2004,span=
2007 Dec 13
1
Two repeated warnings when runing gam(mgcv) to analyze my dataset?
Dear all,
I run the GAMs (generalized additive models) in gam(mgcv) using the
following codes.
m.gam
<-gam(mark~s(x)+s(y)+s(lstday2004)+s(ndvi2004)+s(slope)+s(elevation)+disbinary,family=binomial(logit),data=point)
And two repeated warnings appeared.
Warnings$B!'(B
1: In gam.fit(G, family = G$family, control = control, gamma = gamma, ... :
Algorithm did not converge
2: In gam.fit(G,