Hi Does anyone know what this means: > glm.model = glm(formula = as.factor(nextDay) ~ ., family=binomial, data=spi[1:1000,]) > pred <- predict(glm.model, spi[1001:1250,-9], type="response") Warning message: prediction from a rank-deficient fit may be misleading in: predict.lm(object, newdata, se.fit, scale = 1, type = ifelse(type == 9 is my determinant and I still get this message even when I remove the 9. Stephen
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