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pace
2009 May 28
1
optima in unimode
Dear all
i could not estimate the optima value or range value in unimodal plot in glm
please help me out
thanking you
regard
madan
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orial_WhatsNew1_052009
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2009 Jun 01
1
installing sn package
...more to go on than that, but...
Are you an ecologist and you want to estimate the optima and tolerance
range from a fitted logit model? If so, here is an example:
## install.packages("analogue") if not installed
require(analogue)
data(ImbrieKipp, SumSST)
## fit a model
mod <- glm(G.pacR ~ SumSST + I(SumSST^2), data = ImbrieKipp/100,
family = binomial)
## plot it
pdat <- data.frame(SumSST= seq(min(SumSST), max(SumSST), length = 100))
p2 <- predict(mod, pdat, type = "response")
lines(p2 ~ SumSST, data = pdat, col = "blue", lwd = 3)
## model ceoff...