Displaying 1 result from an estimated 1 matches for "hemsm".
2005 Jul 19
2
Regression lines for differently-sized groups on the same plot
...p!
Laura Marx
Michigan State University, Dept. of Forestry
#Note: hemdata has all the rows that are not hemlock species replaced with
#"NA"s.
hemhem=glm(hempresence~logarea, family=binomial(logit), data=hemdata)
hemyb=glm(hempresence~logarea, family=binomial(logit), data=birchdata)
hemsm=glm(hempresence~logarea, family=binomial(logit), data=mapledata)
attach(logreg) #logreg is the full dataset
plot(logarea, hempresence, xlab = "Surface area of log (m2)",
ylab="Probability of hemlock seedling presence", type="n", font.lab=2,
cex.lab=1.5, axes=TRUE)...