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2003 Apr 17
0
Howto calculate R^2 from an anconva glm
Hi, If I have the follow example: y = count data x1 = continuous data x2 = qualitative data (2 factors levels) I make a model glm(y~x1,family=poisson) The model has only one curve, to calculate r-square, I do "x1 Deviance"/"total Deviance" But in a model with x2 glm(y~x1+x2,family=poisson) I have two curves, but I dont have, using summary() or anova(), the deviance