similar to: Weird read.table error? (line `n' did not have `m' elements)

Dear R users, I wonder if there is a simple way to select a random and non-overlapping subset of a vector? Say, I need to randomly select 10 out of 100 numbers in a vector V. By "non-overlapping" I mean that a number in any position in V (V[1]...V[100]) should be selected at most once (i.e. selection without recycling). I could simplu use a uniform distribution to generate selection

Hi All, Are there any escape characters that I should be aware of when using table.read? I don't have any '#' characters in this table. I get the error: A<-read.table("P:/temp.csv",header=TRUE, sep=","); Error in scan(file, what, nmax, sep, dec, quote, skip, nlines, na.strings, : line 11018 did not have 85 elements but when i open it in excel everything is

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,

Hi, I am looking for an efficient way of skipping big chunks of lines on a connection (not necessarily at the beginning of the file). One way is to use read lines, e.g. readLines(1e6), but a) this incurs the overhead of construction of the return char vector and b) has a (fairly remote) potential to blow up the memory. Another way would be to use scan(), e.g. scan(con, skip=1e6, nmax=0)

I found 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 = >

Hello R-User I have a table as tab-delimited textfile (291 rows, 83 columns). The first row are labels and the first line the variable names. I used the following code several times with different similar tables and it always worked. But now: setClass("of") setAs("character", "of", function(from) as.ordered(from)) Classe82<-cclasses <-

Dear all, I have a tab-delimited text (.txt) file which I'm trying to read into R. This file is of column format - there are in fact 3 columns 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

Dear R-users, I have encountered the following problem every now and then. But I was dealing with a very small dataset before, so it wasn't a problem (I just edited the dataset in Openoffice speadsheet). This time I have to deal with many large datasets containing commuting flow data. I appreciate if anyone could give me a hint or clue to get out of this problem. I have a .dat file

Hola a todos, Me gustaria leer el texto que se encuentra en http://dl.dropboxusercontent.com/u/9601860/txt.txt He intentado txt <- 'http://dl.dropboxusercontent.com/u/9601860/txt.txt' r <- scan(txt) #Error in scan(file, what, nmax, sep, dec, quote, skip, nlines, na.strings, : # invalid multibyte string at '<ff><fe>M' r <- read.table(txt, header = FALSE)

Hola Jorge, Algo pasa con el fichero... He abierto el link de Dropbox, y he salvado el texto como "txt.txt" en local. Pruebo a abrirlo en R y...: > scan(file="txt.txt")Error in scan(file, what, nmax, sep, dec, quote, skip, nlines, na.strings, : scan() expected 'a real', got 'ÿþM'> getwd()[1] "C:/Users/xIs12136/Downloads" Pruebo a abrirlo

Dear R-users, When i try - Data1<-read.table("/Users/kama/Analysis/GDP10.csv",header=TRUE,sep=";") i am getting this error: Warning message: In scan(file, what, nmax, sep, dec, quote, skip, nlines, na.strings, : number of items read is not a multiple of the number of columns I wonder what Iam doing wrong. i guess it is something simple, however, i do not understand

Dear Experienced R Practitioners, I have 4GB .txt data called "dataset.txt" and have attempted to use *ff, bigmemory, filehash and sqldf *packages to import it, but have had no success. The readLines output of this data is: readLines("dataset.txt",n=20) [1] " "

Hola. Con r <- scan(txt, character(0)) creo que debiera montarse el texto carácter a carácter. He comprobado que funciona pero no he validado la importación del texto. Igual es un camino que lleva a alguna parte.... Un Saludo, Miguel. -----Mensaje original----- De: r-help-es-bounces en r-project.org [mailto:r-help-es-bounces en r-project.org] En nombre de Carlos Ortega Enviado el:

It seems to me the following should work (in fact, it comes from someone's SPlus file). Instead, it reads the first 8 lines and then spits out syntax errors. Using nlines=36 works. Using nmax does not. Intel RH5.2 with R90.0. Debugging shows it must be internal. Jim junk <- scan(file="",list(i=0,r1=0,r2=0,lull="",day=""),n=5*36) 1 3 5 no 1 2 1

No matter how I´ve tried o find a solution for this simple question, I can´t. Sorry for bothering with such a matter. I have an excel-files with some empty cells=missing values. How do I tell R that these should be NA´s? > TRFLP1 <-(read.table(file="S://SEDIM//Kokeilu//TRFLP1.txt",col.names= c("Dye_Sample Peak", "Sample_File_Name", "Size",

Estimados Tengo un archivo CSV con 1.200.000 registros separados por ";" y cuando quiero abrirlo me da el siguiente error: form<-read.csv("Usr1.csv" , sep=';' , na.strings = "NA", header=T) Mensajes de aviso perdidos In scan(file, what, nmax, sep, dec, quote, skip, nlines, na.strings, : entrada inválida encontrada en la conexión de entrada

her. We must go shopping tomorrow aftern,~oon, Meg. There is so much to do about the play for Christmas night," said Jo, marching up and down, with her hands -----Original Message----- From: May Little [mailto:vpj at fqgwkh.com] To: leonardo vastakis; antonio braucht; jed marola; franklin christenson; juan zavala Sent: Thursday, September, 2004 4:47 AM Subject: n.,o m~or'e pain cause

Hello, I have a problem to read a csv table. To read it I used this syntax > donParCara <- read.table("C:/Documents and Settings/melyakhlifi/Mes documents/feuilles excel/calcul2.csv",header=TRUE,sep=";",quote="",dec=",") I don't understand my errors Erreur dans scan(file, what, nmax, sep, dec, quote, skip, nlines, na.strings, : la

Hi, I'm running into the error below when doing "R CMD INSTALL MyPackage.tar.gz". This didn't use to be this way and I am at a loss as to where this might be coming from. Any pointers where to look? Joh ** building package indices ... Error in scan(file, what, nmax, sep, dec, quote, skip, nlines, na.strings, : line 1 did not have 8 elements ERROR: installing package

There is a 2-block memory leak in the sub() (or any other regex-related function, probably) when the pattern argument involves a range expression, e.g., '[0-9]'. % R --debugger=valgrind --debugger-args=--leak-check=full --vanilla ==14519== Memcheck, a memory error detector. ==14519== Copyright (C) 2002-2006, and GNU GPL'd, by Julian Seward et al. ==14519== Using LibVEX rev 1658, a