[R] Using predict on a biglm object returns NA

Hi R experts, I used biglm to construct a model (which has categorical variables). When I run predict on the model output on a new data (for testing) or on the same data, I get only NA's. I'm able to run predict with some other models constructed with biglm. One reason I suspect is that the model

[R] Disabling the auto-complete feature in named list indexing

Is there any way to disable the auto-complete feature when we index a named list? E.g: a <- list ('longname'=1, 'anothername'=2) a$l will return 1 and a$a will return 2 the '[[' operator behaves in the same way, the '[' operator does not do autocomplete. Is there any way to disable autocomplete fo

[R] Reading large datasets and fitting logistic models in R

Hi R-experts, Does anyone have experience using R for handling large scale data (millions of rows, hundreds or thousands of features)? What is the largest size of data that anyone has used with glm? Also, is there a library to read data in sparse data format (like SVMlight format)? Thanks Pradh