R Read.csv Error In Filefile Rt Cannot Open The Connection
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In File(file, "rt" ) : Cannot Open File 'na': No Such File Or Directory
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Error In File(file Rt ) Cannot Open The Connection Calls Anonymous
up Error in file(file, “rt”) : cannot open the connection up vote 11 down vote favorite 2 I'm new to R, and after researching this error extensively, I'm still not able to find a solution for it. Here's the code. I've checked my working directory, and made sure the files are in the right directory. Appreciate it. Thanks pollutantmean <- function(directory, pollutant =
R Cannot Open File Permission Denied
"nitrate", id= 1:332) { if(grep("specdata",directory) ==1) { directory <- ("./specdata") } mean_polldata <- c() specdatafiles <- as.character(list.files(directory)) specdatapaths <- paste(directory, specdatafiles, sep="") for(i in id) { curr_file <- read.csv(specdatapaths[i], header=T, sep=",") head(curr_file) pollutant remove_na <- curr_file[!is.na(curr_file[, pollutant]), pollutant] mean_polldata <- c(mean_polldata, remove_na) } { mean_results <- mean(mean_polldata) return(round(mean_results, 3)) } } The error I'm getting is below: Error in file(file, "rt") : cannot open the connection file(file, "rt") read.table(file = file, header = header, sep = sep, quote = quote, dec = dec, fill = fill, comment.char = comment.char, ...) read.csv(specdatapaths[i], header = T, sep = ",") pollutantmean3("specdata", "sulfate", 1:10) In addition: Warning message: In file(file, "rt") : cannot open file './specdata001.csv': No such file or directory r csv rt share|improve this question edited Dec 14 '14 at 4:30 jlhoward 36.5k32763 asked Dec 14 '14 at 4:21 user3115277 56113 1 It looks like you have (??) a directory specdata with files 001.csv, etc. Then the proper path is ./specdata/001.csv, not ./specdata001.csv. Try changing sep="" to sep="/" in the specdatapaths line. –jlhoward Dec 14 '14 at 4:36 1 Or try Degugging 101 tactics like printing
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Error During Wrapup: Cannot Open The Connection
Learn more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask cannot change working directory Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 6.2 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign http://stackoverflow.com/questions/27466317/error-in-filefile-rt-cannot-open-the-connection up How to open CSV file in R when R says “no such file or directory”? up vote 7 down vote favorite 5 I have an excel file that I want to open in R. I tried both of these commands after saving the excel file as a csv file or a text file. read.table() or read.csv() I think part of the problem http://stackoverflow.com/questions/5568847/how-to-open-csv-file-in-r-when-r-says-no-such-file-or-directory is where the file is located. I have it saved on the desk top. What am I missing here? Here is the R output In file(file, "rt") : cannot open file 'Rtrial.csv': No such file or directory > help.search("read.csv") > read.csv("Rtrial.csv") Error in file(file, "rt") : cannot open the connection In addition: Warning message: In file(file, "rt") : cannot open file 'Rtrial.csv': No such file or directory > read.table("tab") r share|improve this question edited Oct 10 '12 at 3:29 Jeromy Anglim 13.3k1171131 asked Apr 6 '11 at 15:22 illbill 58125 2 It would in general be useful to provide more information; in this particular case it's hard to make a truly reproducible example, but you could at least show the full command you tried, and the output of getwd() [i.e., show your working directory] –Ben Bolker Apr 6 '11 at 16:28 for general advice of opening excel files (xls, xlsx), see stackoverflow.com/questions/6099243/… –Jeromy Anglim Oct 10 '12 at 3:46 add a comment| 10 Answers 10 active oldest votes up vote 16 down vote accepted To throw out another option, why not set the wo
[R] re arrange according to first positions Messages sorted by: [ date ] [ thread ] [ subject ] [ author ] https://stat.ethz.ch/pipermail/r-help/2014-August/421205.html Such problems usually come from not understanding where files really are, though sometimes odd file permissions can be the culprit. Understanding how backslashes work in R strings also sometimes causes problems, though you seem to be using forward slashes so that may not apply here. You may find that reading the help files could provide more accurate picture about cannot open the file system from R's point of view than you currently have in your mind. ?list.files list.files() ?getwd getwd() list.files("G:/Software/R-3.1.1/library/dismo/ex") You should not have to use setwd() to successfully read a file, but it can be convenient. If you confirm the directory is there but you only see a subset of files that you expect, then you may have a cannot open the permissions problem. My advice is to stay away from changing permissions if at all possible... it usually only occurs because you were doing something "As Administrator" when you shouldn't have been, and fixing that is a pit of despair and off topic here. --------------------------------------------------------------------------- Jeff Newmiller The ..... ..... Go Live... DCN: