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 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 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.
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Sent from my phone. Please excuse my brevity.
On August 27, 2014 10:41:23 PM PDT, Girija Kalyani <smileismys...@gmail.com>
wrote:
>Dear R Group,
>
>I have an species occurence file stored in dismo/ex/abc.csv.
>When i read the file, it shows error.
>Error in file(file, "rt") : cannot open the connection
>In addition: Warning message:
>In file(file, "rt") : cannot open file
>'G:/Software/R-3.1.1/library/dismo/ex/occurence.csv': No such file or
>directory
>What could b the reason, it shows no such file in directory, but i
>saved my
>file in the place where i have mentioned in d code.
>Can someone help me out with this?
>Thanx in advanvce
>
> [[alternative HTML version deleted]]
>
>______________________________________________
>R-help@r-project.org mailing list
>https://stat.ethz.ch/mailman/listinfo/r-help
>PLEASE do read the posting guide
>http://www.R-project.org/posting-guide.html
>and provide commented, minimal, self-contained, reproducible code.
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