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..."\"c\",\"d\"" "\"e" [4] "newline\",\"\\\"quoted simpleline\\\"\"" > > # double pushback is fine > pushBack(c(lines,lines), fc) > > # but nlines tells us we had 4 lines, which in fact are only 3 > nlines <- length(lines) > nlines [1] 4 > > # and the first scan eats up more than the first pushback > scan(fc, what="string", sep=",", nlines=nlines) Read 8 items [1] "a" &quot...

...*/ - if (!(action_flags & USE_OVERLAY)) { - ppix = NVGetDrawablePixmap(pDraw); + if (action_flags & USE_OVERLAY) { + if (pNv->Architecture == NV_ARCH_04) { + NV04PutOverlayImage(pScrn, pPriv->video_mem, offset, + id, dstPitch, &dstBox, 0, 0, + xb, yb, npixels, nlines, + src_w, src_h, drw_w, drw_h, + clipBoxes); + } else { + NV10PutOverlayImage(pScrn, pPriv->video_mem, offset, + uv_offset, id, dstPitch, &dstBox, + 0, 0, xb, yb, + npixels, nlines, src_w, src_h, + drw_w, drw_h, clipBoxes); + } + + pPriv-...

Full_Name: Kamil Barto? Version: 2.8.0 OS: windows xp Submission from: (NULL) (212.33.92.187) According to the "deparse" function documentation "nlines" is the *maximum* number of lines to produce. But, when "nlines" argument is supplied, it produces exactly nlines of result, and the result contains empty elements at the end. Example: > deparse(quote(foo(1,2,3)), width.cutoff = 20, nlines=7) [1] "foo(1, 2, 3)" "...

...hat it was rewritten in R 1.4.0. I think I found out what part of the problem might be. I was comparing R1.3.1 and R1.4.0 code and it appears that a statement is missing in some of the code for R 1.4. This is the section of code at the beginning of read.table. The loop starting with 'while (nlines < 5)' will read in the entire file, because there is no increment of 'nlines' in the loop. I traced through the code and this is what was happening. It then does a 'pushBack' of the entire file. In tracing through the code, this is where is appears to be taking the time....

Thanks a lot, James!! The problem is fixed. On the version 1.4.0 Mac/darwin (the latest available version for this system) the function read.table (which is called from read.delim etc., too) has the bug you explained. Inserting the row nlines <- nlines+1 after lines <- c(lines, line) removes this bug. M. On Friday, February 22, 2002, at 02:33 PM, james.holtman at convergys.com wrote: > > If you can not the the latest 1.4.1, here is a patch (adds one line to > read.table) that will fix it on your current system. &g...

...atrix <- function (x, file = "", sep = "\t", blocksize=2000) { x <- as.matrix(x) p <- ncol(x) cn <- colnames(x) if (!missing(blocksize) && blocksize > 0) { cat(cn, file = file, sep = c(rep(sep, p - 1), "\n")) nlines <- 0 nr <- nrow(x) while (nlines < nr) { nb <- min(blocksize, nr - nlines) cat(format(t(x[nlines + (1:nb), ])), file = file, append = TRUE, sep = c(rep(sep, p - 1), "\n")) nlines <- nlines + nb...

...wo different random lines at a time from a large ASCII file (120 x 296976) containing space delimited 0-1 entries. The following code does the job and it's reasonable fast for my needs: lineNumber = sample(120, 2) line1 = scan(filename, what = "integer", skip=lineNumber[1]-1, nlines=1) line2 = scan(filename, what = "integer", skip=lineNumber[2]-1, nlines=1) > system.time(for (i in 50){ + lineNumber = sample(120, 2) + line1 = scan(filename, what = "integer", skip=lineNumber[1]-1, nlines=1) + line2 = scan(filename, what = "integer", s...

...data file is delimited by white space. (Part of) script to read: myfile <- file("Paises.dat", open="r") # opens a connection which stays open until closed by close(myfile) name <- readLines(con=myfile, n=1) varnames <- scan( myfile, what=character(0), nlines=1 ) stopifnot( length(varnames) == 21 ) Paises <- matrix(0, 21, 21) colnames(Paises) <- varnames rownames(Paises) <- varnames for (i in 1:21) { temp <- scan(myfile, what=list("a", rep(0,22-i) ), nlines=1, sep="") Paises[i, i:21] <- temp[[2]] } I get...

...cord){ current.row=scan(file=fp, sep=',', what=list(count=1, cusip6="", idate=1, spread=1.1, vol252=1.1, vol1000=1.1, st_debt=1.1, lt_debt=1.1 , total_liab= 1.1, cr=1.1, shrout=1.1, prc=1.1, mkt_cap=1.1, rtng=1.1, sec=1.1, cr3m=1.1, cr5y=1.1, ust3m=1.1, ust5y=1.1), flush=TRUE, nlines=1,quiet=T) ... } I need to know the number of records in the table and put it in the variable named "number.of.records". When I have a new table that I do not know how many records it has, I use excel to open the file to figure it out and put it in variable " number.of.records&...

...readLines(file, 1) : seek not enabled for this connection > close(file) However, if I instead use "scan" to read the file, then there are no errors and I get the rewind/no rewind behavior described above. > file <- unz("file.zip", "file.txt") > scan(file,nlines=1,sep="\t",what=character(0)) Read 3 items [1] "a" "b" "c" > scan(file,nlines=1,sep="\t",what=character(0)) Read 3 items [1] "a" "b" "c" > close(file) > file <- unz("file.zip", "file.txt&qu...

I'm trying to import a table into R the file is about 700MB. Here's my first try: > DD<-read.table("01uklicsam-20070301.dat",header=TRUE) Error: cannot allocate vector of size 15.6 Mb In addition: Warning messages: 1: In scan(file, what, nmax, sep, dec, quote, skip, nlines, na.strings, : Reached total allocation of 1535Mb: see help(memory.size) 2: In scan(file, what, nmax, sep, dec, quote, skip, nlines, na.strings, : Reached total allocation of 1535Mb: see help(memory.size) 3: In scan(file, what, nmax, sep, dec, quote, skip, nlines, na.strings, : Reached to...

I use the following code to create two data.frames d1 and d2 from a list: types <- c("integer", "character", "double") nlines <- 10 d1 <- as.data.frame(lapply(types, do.call, list(nlines)), stringsAsFactor=FALSE) l2 <- lapply(types, do.call, list(nlines)) d2 <- as.data.frame(l2, stringsAsFactors=FALSE) I would expect d1 and d2 to be the same, however, in d1 the second column is a factor while...

...uot;, ...) { file1 <- tempfile("Rrawhist") savehistory(file1) rawhist <- scan(file1, what = "", quiet = TRUE, sep = "\n") rawhist <- rawhist[grep(pattern, rawhist, ...)] #** if(unique) rawhist <- unique(rawhist) #** unlink(file1) nlines <- length(rawhist) inds <- max(1, nlines - max.show):nlines if (reverse) inds <- rev(inds) file2 <- tempfile("hist") write(rawhist[inds], file2) file.show(file2, title = "R History", delete.file = TRUE) } -- visit the R Graph Galle...

...es", because the measurments have letters and numbers (e.g. S=0.00012) witch have to be filtered for using a matrix (scan make errors). -The second problem is, that the number of measurments is variable. My idea. I have the position (skip=r2) of the beginning of the measurments, the length (nlines=r1) and the number of all measurments (for (i in i:r3)). My problem and question. I need a command to read my measurments. The readLine command has no possibility to skip lines. And the read.file command can't filter my data.dat for (S= , S=, x=, y=). I hope you have an idea. Thank's for...

I am graphing longitudinal data from three time points. I'd like to draw a solid line from point 1 to point 2, and then a dashed line from point 2 to point 3. It works if I do it in two steps: > first.vector <- c(mean(year1$variable1), mean(year2$variable1)) > second.vector <- c(NA, mean(year2$variable1), mean(year3$variable1)) > plot(first.vector, type="b",

...ound it easy to use R when typing data manually into it. Now I need to read data from a file, and I get the following errors: > refdata = > read.table("K:\\MerchantData\\RiskModel\\refund_distribution.csv", header > = TRUE) Error in scan(file, what, nmax, sep, dec, quote, skip, nlines, na.strings, : line 1 did not have 42 elements > refdata = > read.table("K:\\MerchantData\\RiskModel\\refund_distribution.csv") Error in scan(file, what, nmax, sep, dec, quote, skip, nlines, na.strings, : line 2 did not have 42 elements > (I'd tried the first versio...

...the parent daemon via stdin and stdout. Everything works perfectly fine except for having some memory leaks somewhere. Simplified version of the R app: while (TRUE) { con <- file('stdin', open = 'r', blocking = TRUE) line <- scan(con, what = character(0), nlines = 1, quiet = TRUE) close(con) } This loop uses more and more RAM as time passes (see more on this below), not sure why, and I have no idea currently on how to debug this further. Can someone please try to reproduce it and give me some hints on what is the problem? Sample bash script...

...s <- c(rep("factor", 63), rep("numeric",7), rep ("of", 12)) Table<-read.table("Table.txt",header=TRUE,row.names=1, na.strings="NA" ,colClasses = Classe82) I get this error-message: Fehler in scan(file, what, nmax, sep, dec, quote, skip, nlines, na.strings, : scan() erwartete 'a real', bekam '8,5' Error in scan(file, what, nmax, sep, dec, quote, skip, nlines, na.strings, : scan() expected 'a real', got '8,5' It seems that the error is in the colClasses-argument. Without this argument it reads...

...and 259201 rows (including the column headers). I've been using the following commands, but receive an error each time which prevents the data from being read in: > Jan <- read.table("JanuaryAvBurntArea.txt", header=TRUE) Error in scan(file, what, nmax, sep, dec, quote, skip, nlines, na.strings, : line 1 did not have 6 elements I tried removing the 'header' argument, but receive a similar message: > Jan <- read.table("JanuaryAvBurntArea.txt") Error in scan(file, what, nmax, sep, dec, quote, skip, nlines, na.strings, : line 2 did not have 6 e...

...eau_xv.c index f7dc2bc..8eafcf0 100644 --- a/src/nouveau_xv.c +++ b/src/nouveau_xv.c @@ -1095,7 +1095,7 @@ NVPutImage(ScrnInfoPtr pScrn, short src_x, short src_y, short drw_x, NVCopyNV12ColorPlanes(buf + s2offset, buf + s3offset, dst, line_len, srcPitch2, - nlines, line_len); + nlines, npixels); } } else { for (i = 0; i < nlines; i++) { @@ -1161,7 +1161,7 @@ CPU_copy: NVCopyNV12ColorPlanes(buf + s2offset, buf + s3offset, map, dstPitch, srcPitch2, - nlines, line_len); + nlines, npi...