R help - Aug 2014 - R ERROR- Error in file(file, "rt") : cannot open the connection

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]]

Hi,

You don't show us your code, and you really should, but most likely
you did not put the file where you thought you did, or there's a typo
in the name.

Using file.choose() may help.

Also, I think it's bad practice to put user files in the R library
directory. You should make a working directory in your own workspace.

Sarah


On Thu, Aug 28, 2014 at 1:41 AM, Girija Kalyani <smileismystyl at
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
>
-- 
Sarah Gosle
http://www.stringpage.com
http://www.sarahgoslee.com
http://www.functionaldiversity.org

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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On August 27, 2014 10:41:23 PM PDT, Girija Kalyani <smileismystyl at
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]]
>
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