[R] Installed R to Windows, but having trouble with read.csv

Duncan Murdoch murdoch.duncan at gmail.com
Tue Mar 3 01:49:23 CET 2015

On 02/03/2015 11:53 AM, Mello Cavallo, Alice wrote:
> I copied the file into the bin folder of R ...
>> perf_data <- read.csv("PerfResultsCSv.csv")
> Error in file(file, "rt") : cannot open the connection
> In addition: Warning message:
> In file(file, "rt") :
>   cannot open file 'PerfResultsCSv.csv': No such file or directory
> I also installed and load RWeka package, but canot open.
> It seems like I am having some issue of directories...
> I am new to R, any help appreciated.

Setting the filename using the file.choose() function is usually
easiest.  I.e.

f <- file.choose()
perf_data <- read.csv(f)

You'll get the usual file choose dialog (at least in Windows and OSX;
not sure about Linux) when file.choose() runs and can navigate to the
file.  The full name including path will be saved in f.

Duncan Murdoch

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