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combinar
2011 Jan 11
1
glm specification where response is a 2col matrix
Hi,
when I apply a glm() model in two ways,
first with the response in a two column matrix specification with
successes and failures
y <- matrix(c(
5, 1,
3, 3,
2, 2,
0, 4), ncol=2, byrow=TRUE)
X <- data.frame(x1 = factor(c(1,1,0,0)),
x2 = factor(c(0,1,0,1)))
glm(y ~ x1 + x2, data = X, family="binomial")
second with a model matrix that