search for: transfun

...i My aim is to read a large .csv file into R. I ran the following code and am using R version 10.1 on Windows. >library(ff) > read.csv.ffdf(x=NULL,"file.csv",fileEncoding="",nrows=-1,first.rows=NULL,next.rows=NULL,levels=NULL,appendLevels=TRUE,FUN="read.table",transFUN=NULL,asffdf_args=list(),BATCHBYTES=getOption("ffbatchbytes"),VERBOSE=FALSE) Error in read.table.ffdf(FUN = "read.csv", ...) : formal argument "FUN" matched by multiple actual arguments Can anyone help me to fix this error. Thanks in advance. -- View this message...

...use the function 'kzft' iin the package 'kzft'. The problem is that i do not understand well how to use it. In particular, i tryed with this script (though the meaning of some of the coefficients is non clear to me): aa<-coeff.kzft(100,1) frq<-seq(0, 2*pi, by=0.05) tf1<-transfun.kzft(100,1,frq,0.0025) X<-kzft(Gamma[(1:196),(1:196),], 100, 1, 1, 0.005) thanks in advance. Lorenzo -- **************************************************************** credo nella ragione umana, e nella liberta' e nella giustizia che dalla ragione scaturiscono. (sciascia) ************...

Hi! It seems that read.table() in R 3.0.1 (Linux 64-bit) does not consider quoted integers as an acceptable value for columns for which colClasses="integer". But when colClasses is omitted, these columns are read as integer anyway. For example, let's consider a file named file.dat, containing: "1" "2" > read.table("file.dat",

Hey all, I feel like the solution to this problem should be relatively simple, but for some reason I can't find answers or come up with my own solution. Given the dataframe: (SpA and SpB not important, want to look at distribution of cooccurance for each year) Year SpA SpB Coocc 2000 0 2000 2 2000 1 2001 8 2001 2 2001 0 2001 0 2002 1 2002 2 How can I apply different functions to

...ifferent number of rows (currently requires 'initdata=NULL') o clone.default now deep-copies lists and atomic vectors DEPRECATED o virtual window support is deprecated. Let us know if you urgently need this and why. BUG FIXES o read.table.ffdf now also works if transFUN filters and returns less rows BUG FIXES at 2.1.4 o [<-.ffdf no longer does calculate the number of elements in an ffdf which could led to an integer overflow BUG FIXES at 2.1.3 o ffsafe now always closes ffdf objects - also partially closed ones o ffsafe no longer passes...

...ifferent number of rows (currently requires 'initdata=NULL') o clone.default now deep-copies lists and atomic vectors DEPRECATED o virtual window support is deprecated. Let us know if you urgently need this and why. BUG FIXES o read.table.ffdf now also works if transFUN filters and returns less rows BUG FIXES at 2.1.4 o [<-.ffdf no longer does calculate the number of elements in an ffdf which could led to an integer overflow BUG FIXES at 2.1.3 o ffsafe now always closes ffdf objects - also partially closed ones o ffsafe no longer passes...