search for: ffbase

...apping. There is a package 'ff' which implements efficient loading of disk-based vectors using memory mapping. It works pretty well, but the problem is that it creates a separate data type - the vectors are not "native" R vectors. There are some wrapper functions in a package 'ffbase' which allow people to use common functions like 'sum' on these 'ff' vectors. However, a new wrapper has to be written for every such function, and I guess the 'ffbase' authors do not have time to write wrappers that are as efficient as the native R functions - in my tes...

Hello to everyone. I'm trying to use the %in% to match to vectors in ff format. a<-as.ff(data[,1]) %in% fire$fecha > aff (open) logical length=3653 (3653) [1] [2] [3] [4] [5] [6] [7] [8] [3646] FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE : FALSE [3647] [3648] [3649] [3650] [3651] [3652] [3653] FALSE FALSE FALSE FALSE FALSE FALSE

On 4 September 2017 at 11:35, Suzen, Mehmet wrote: | It is not needed. There is a large community of developer using SparkR. | https://spark.apache.org/docs/latest/sparkr.html | It does exactly what you want. I hope you are not going to mail a sparkr commercial to this list every day. As the count is now at two, this may be an excellent good time to stop it. Dirk --

I've noticed that ff uses the unzip utility available on it's host OS to load datasets via ffload. It seems to work fine in linux, but when I try to use the package in Windows (hence dling Windows unzip utils) I get 2 errors, one telling me that the options aren't being passed to unzip correctly and another indicating that my filename is incorrect. First, does anyone know of an unzip

Dear folks ? I have a large (26 gig) ASCII flat file in fixed-width format with about 10 million observations of roughly 400 variables. (It is 51 years of Current Population Survey micro data from IPUMS, roughly half the fields for each record). The file was produced by automatic process in response to a data request of mine. The file is not accompanied by a human-readable file giving the

CRAN (and crantastic) updates this week New packages ------------ * disclapmix (0.1) Maintainer: Mikkel Meyer Andersen Author(s): Mikkel Meyer Andersen and Poul Svante Eriksen License: GPL-2 http://crantastic.org/packages/disclapmix disclapmix makes inference in a mixture of Discrete Laplace distributions using the EM algorithm. * EstSimPDMP (1.1) Maintainer: Unknown Author(s):