Displaying 2 results from an estimated 2 matches for "ffrowappli".
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ffrowapply
2009 Apr 03
1
bigglm "update" with ff
Hi, since bigglm doesn't have update, I was wondering how to achieve
something like (similar to the example in ff package manual using biglm):
first <- TRUE
ffrowapply ({
if (first) {
first <- FALSE
fit <- bigglm(eqn, as.data.frame(bigdata[i1:i2,,drop=FALSE]), chunksize =
10000, family = binomial())
} else {
fit <- update(fit,
2007 Nov 02
0
applying duplicated, unique and match to lists?
Dear R developers,
While improving duplicated.array() and friends and developing equivalents for the new ff package for large datasets I came across two questions:
1) is it safe to use duplicated.default(), unique.default() and match() on arbitrary lists? If so, we can speed up duplicated.array and friends considerably by using list() instead of paste(collapse="\r")
2) while