search for: m1big_started

Displaying 2 results from an estimated 2 matches for "m1big_started".

2009 Jul 03
2
bigglm() results different from glm()
...ression model: bigglm(y ~ ttment, data = dat, family = poisson(link = "log"), chunksize = 100000, maxit = 20) Sample size = 100000 Coef (95% CI) SE p (Intercept) 2.304 2.301 2.307 0.001 0 ttment2 0.405 0.401 0.408 0.002 0 or supplying starting values: /> summary(m1big_started) / Large data regression model: bigglm(y ~ ttment, data = dat, family = poisson(link = "log"), chunksize = 100000, start = c(2, 0)) Sample size = 100000 Coef (95% CI) SE p (Intercept) 2.304 2.301 2.307 0.001 0 ttment2 0.405 0.401 0.408 0.002 0 The bug is that you w...
2009 Mar 17
2
bigglm() results different from glm()
Dear all, I am using the bigglm package to fit a few GLM's to a large dataset (3 million rows, 6 columns). While trying to fit a Poisson GLM I noticed that the coefficient estimates were very different from what I obtained when estimating the model on a smaller dataset using glm(), I wrote a very basic toy example to compare the results of bigglm() against a glm() call. Consider the