Prof Brian Ripley wrote:
> On Mon, 10 Jul 2006, Laurent Deniau wrote:
>
>> I have a data frame with named columns and I would like to know if it is
>> possible to retrieve a column name once selected:
>
>
> Not really. df$col1 is a new object which does not know where it came
> from.
>
> If y
Use drop = FALSE. For example using builtin data frame BOD we
can display the Time column with its heading:
BOD[, "Time", drop = FALSE]
On 7/10/06, Laurent Deniau <[EMAIL PROTECTED]> wrote:
> I have a data frame with named columns and I would like to know if it is
> possible to retrieve a colum
On Mon, 10 Jul 2006, Laurent Deniau wrote:
> I have a data frame with named columns and I would like to know if it is
> possible to retrieve a column name once selected:
Not really. df$col1 is a new object which does not know where it came
from.
If you wanted to do this before selection, then
I have a data frame with named columns and I would like to know if it is
possible to retrieve a column name once selected:
print(colnames(df)) # assumes to print "col1" "col2"
print.name(df$col1) # would like to print "col1"
print.name(df$col2) # would like to print "col2"
So what the print.n
