R help - Jan 2012 - colouring a table, data.frame or matrix in an interactive R session

Hi everybody,

as I am dealing with complex confusion matrices, I wonder whether there
might be a way to colour text/tabular data in R. I.e. imagine
highlighting the true positive values or certain classes in a table.

I know how to colour text in graphical output as well as how to sweave
or odfWeave coloured tables. But is there a way to do it directly in an
interactive R session?
Of course I understand that terminals originally haven't been designed
for coloured output and that one can easily extract every information
needed by subscripting. But still coloured text in the interactive
session would sometimes just be comfortable.

Looking forward to read from you,
Greetings from Munich, Felix

On 1/7/2012 5:48 AM, drflxms wrote:
> Hi everybody,
>
> as I am dealing with complex confusion matrices, I wonder whether there
> might be a way to colour text/tabular data in R. I.e. imagine
> highlighting the true positive values or certain classes in a table.
>
> I know how to colour text in graphical output as well as how to sweave
> or odfWeave coloured tables. But is there a way to do it directly in an
> interactive R session?
> Of course I understand that terminals originally haven't been designed
> for coloured output and that one can easily extract every information
> needed by subscripting. But still coloured text in the interactive
> session would sometimes just be comfortable.
>
It depends on what kind of terminal you are using, but maybe not worth
the effort.
lattice::levelplot can do a nice job of coloring cells in a table.

On 7 January 2012 19:48, drflxms <drflxms at googlemail.com> wrote:
> as I am dealing with complex confusion matrices, I wonder whether there
> might be a way to colour text/tabular data in R. I.e. imagine
> highlighting the true positive values or certain classes in a table.
The "colorout" package does part of what you want: colouring the
output, in a terminal.
But some more work may be needed if you want to change the colours
depending on the values of your matrix.

-- Vincent