similar to: how to read CSV file in R?

can anyone tell me how to import a text file in R? the text file I want to import is a large file, about 800MB in size. Thanks in advance. I tried using the following data<-read.table("file",header=T,sep="\t") -- View this message in context: http://r.789695.n4.nabble.com/import-text-file-into-R-tp2241525p2241525.html Sent from the R help mailing list archive at

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,

Hello, I used read.xlsx to read in Excel files but for large files it turned out to be not very efficient. For that reason I use a programme which writes each sheet in an Excel file into tab-delim txt files. After that I tried using read.table and read.delim to read in those txt files. Unfortunately, the results are not as expected. To show you what I mean I created a tiny Excel sheet with some

All- Thank you in advance for any help you might be able to lend. Here is my issue. I am trying to open a fairly large .dat file. The file originally was downloaded as a GZ file but I unzipped it (with 7-zip) into it's current 1.86 gig .dat format. I know that the data is "just a plain ASCII file with 720 columns and 360 rows per time step (month). It should be readable by

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

Siguiendo la sugerencia de Velez Jorge use read.delim2, lee y crea el objeto pero al intentar visualizarlo me da el error: > form<-read.delim2("ASSEUsr1.csv", header=T, sep=";") > form Error: C stack usage is too close to the limit Olvideo decir que corro R con Rstudio en Ubuntu 13.04 Gracias El 19 de julio de 2013 15:36, Carlos Ortega

I a have a text file where every line is like that: "2007-12-03 13:50:17 Juan Perez" ("yy-mm-dd hh:mm:ss First Name Second Name") I would like to make a data frame with two column one for date and the other one for name. When I use read.delim it was transformed in a data frame with 4 colums. Bye, Sebasti?n.

I am using the code below to extract census tract information. save.tract$state, save.tract$county and save.tract$tract are returned as factors. In the last three statements, I need to save the actual value of the factor, but, instead, the code is yielding the position of the factor. How do I instead return the value of the factor? By way of example, for Lon=-82.49574 and Lat=29.71495, the code

Hi 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)

Hi all, I am running 64-bit R 2.15.0 on windows 7. I am trying to use read.delim to read from a file that has 2-byte unicode (CJK) characters. Here is an example of the data (it is tab-delimited if that gets messed up): HITId HITTypeId Title 2Q69Z6KW4ZMAGKKFRT6Q4ONO6MJF68 2LVJ1LY58B72OP36GNBHH16YF7RS7Z 看看句子，写写想法 请看以下的句子，再回答问 So read.delim (code below) doesn't read in correctly. It reads

Hi - I'm reading in a tab delimited file that is causing issues with read.delim. Specifically, for a specific set of lines, the last entry of the line is misread and considered to be the first entry of a new row (which is then padded with 'NA's' ). Specifically: tmp <- read.delim( "trouble.txt", header=F ) produces a data.frame, tmp where if I call tmp[,1],

Hello R users, I'm trying to extract random samples from a big array I have. I have a data frame of over 40k lines and would like to produce around 50 random sample of around 200 lines each from this array. this is the matrix ID xxx_1c xxx__2c xxx__3c xxx__4c xxx__5T xxx__6T xxx__7T xxx__8T yyy_1c yyy_1c _2c 1 A_512 2.150295 2.681759 2.177138 2.142790 2.115344 2.013047

Hi all, I have some trouble reading data from a csv file. I used command "read.delim("clipboard") to read in the data. > aalpha.data <- read.delim("clipboard") > class(aalpha.data) [1] "data.frame" > dim(aalpha.data) [1] 8 25 > colnames(aalpha.data) [1] "X" "V1" "V2" "V3" "V4"

I've spent some time trying to wrap my head around reading in large csv files with the ff-package. I think I know how to do it, but am bumping into some problems. I've tried to recreate the issues as best as I can with a smaller example and maybe someone can help explain the problems. The following code just creates a csv file with an integer column, character column and logical column.

Dear all, I was playing around with factor contrasts, and found the argument nmax on function factor. When using nmax=1, R froze completely, and I had to close it from task manager. After some debugging, I found that the problem is actually in unique-function, where the internal unique function is called: .Internal(unique(x, incomparables, fromLast, nmax)) More generally, it looks like

If read.csv's colClasses= argument is NOT used then read.csv accepts double quoted numerics: 1: > read.csv(stdin()) 0: A,B 1: "1",1 2: "2",2 3: A B 1 1 1 2 2 2 However, if colClasses is used then it seems that it does not: > read.csv(stdin(), colClasses = "numeric") 0: A,B 1: "1",1 2: "2",2 3: Error in scan(file, what, nmax, sep,

Hello, Pure newbie question. After installeing Ruby, Rail and al the gems I am following the tutorial here http://guides.rubyonrails.org/getting_started.html I start a server with Mongrel and it seems to be working, but when I try to acces http://localhost:3000 i get a firefox error: Firefox can''t establish a connection to the server at localhost:3000 I work under Vista with Ruby the

Hi, I'm using R version 3.0.2. While I executed the following command filedata <- read.csv(file, header=TRUE, colClasses="character") I got the warning message: In scan(file, what, nmax, sep, dec, quote, skip, nlines,  ... : EOF within quoted string I'd like to know what this means? And how shall I fix the problem? Thank you for your help. Best, Chia-Chieh Lin

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

Hola, Prueba con la carga de una parte del fichero, por ejemplo los primeros 100,000 registros para ver si se reproduce el problema. Y si no ocurre, vete incrementando la cantidad de registros. No parece ser el problema de un registro en concreto, en ese caso el mensaje de error es más explicito indicando la línea en la que se produce. Otra alternativa, si no tienes inconveniente, es adjuntar el