On 14/11/2010 10:42 AM, Joshua Wiley wrote:
On Sun, Nov 14, 2010 at 3:40 AM, Stephen Liu<sati...@yahoo.com> wrote:
Hi Joshua,
list.files(path = getwd(), all.files = TRUE)
[3]
".RData"
[4]
".Rhistory"
.Rhistory and .RDate are there.
Note that these files start with a "."
But I can't find .RDate on Windows Explorer. Only .Rhistory is there.
This is likely a "feature" of Windows Explorer....certain types of
files are hidden by default (like those that start with ".").
That's not true: it's Unix ls that hides filenames starting with a ".".
Windows Explorer does hide some files, but I don't think it is ever
based on the name, it's based on the attributes.
What Windows Explorer does that is incredibly stupid is that (by
default) it hides file extensions for known file types. Generally
".RData" will be registered as a known file type. Exporer will cut off
the ".RData" part the name of a file with that extension, and only show
the first part of the name. Since the file ".RData" has no starting
part of a name, it will be listed with a blank name.
What you should do (and what Microsoft should set the default to) is to
turn off this bad policy of listing filenames incorrectly. I don't
remember how to do it in Windows 7 or Vista, but on XP, here's how:
Go into Explorer in some folder.
Click on the "Tools" menu, then the "Folder Options..." choice.
Choose the View tab.
About 10 choices down within Files and Folders, you'll see "Hide
Extensions for Known File Types". Make sure this is *not* checked.
If you're sane, you'll then click on the button "Apply to all folders",
but you might just want to click on "OK" to try it out on one folder first.
Duncan Murdoch
You can
adjust this behavior in the folder options (if the idea of
protected/hidden files and folder options all sounds new to you, now
is a great opportunity to spend some time exploring your operating
system, learning how it works and how to use it at a more serious
level than the basic user it assumes....Google is your friend here,
there are literally thousands of articles, walkthroughs, and tutorials
on different aspects of Windows).
rm (list = ls(all=TRUE))
This does NOT delete the workspace, it just clears your worksapce of
any objects.
q()
save working image
Now you will have saved your current worksapce (which if you just used
rm() as above, will be empty, but still there).
On next start of R
[Previously saved workspace restored]
still popup
Now you probably just restored an empty workspace. This is not a
problem, it is normal R behavior and is a sign that everything is
working as expected.
B.R.
Stephen L
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and provide commented, minimal, self-contained, reproducible code.
