R help - Dec 2013 - Where did lost variables go, with example

Two or three respondents asked for an example of my problem.  Here's 
what's happening to me now.  I can't reproduce how I got to this point, 
though:

 > ls()
[1] "All8"   "All8Sites"  "A"   "B" 
"C"  "i"  "n"  "D"  "F"
 > X
Error: object 'X' not found
 > attach(All8Sites)
 > ls()
[1] "All8"  "All8Sites"  "A"  "B" 
"C"  "i"  "n"  "D"  "F"


"X" is one of the variables in the data frame I attached in the third 
command above, but it's not listed by >ls().  If I enter > X now, its 
values ARE listed, but it's hiding somewhere.  What is happening here?  
How can I get the variables in that data frame listed when I attach it?

Thanks to all.
David


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On 13-12-31 9:48 AM, David Parkhurst wrote:
> Two or three respondents asked for an example of my problem.  Here's
> what's happening to me now.  I can't reproduce how I got to this
point,
> though:
>
>   > ls()
> [1] "All8"   "All8Sites"  "A"   "B"
"C"  "i"  "n"  "D"  "F"
>   > X
> Error: object 'X' not found
>   > attach(All8Sites)
>   > ls()
> [1] "All8"  "All8Sites"  "A"  "B" 
"C"  "i"  "n"  "D"  "F"
>
>
> "X" is one of the variables in the data frame I attached in the
third
> command above, but it's not listed by >ls().  If I enter > X now,
its
> values ARE listed, but it's hiding somewhere.  What is happening here?
> How can I get the variables in that data frame listed when I attach it?
Use search() to see the search list.  Your dataframe will likely be in 
position 2.  Use ls(2) to see the variables there.

Duncan Murdoch