[R] R performance, labeling questions, etc.

[Tony Vargas]

Uwe,

Thanks for your help.  The solution solved most of my problem and was
consistent with the other responses I got back.

The solution below gives me tick marks at 144 point intervals, yet when I
try to get the information located at the point, I get the number
position back, not the date (02/01/03,00:50).  Any ideas?

In addition, thanks for your help so far,

Tony

Tony Vargas
Cisco Systems
Engineering Computing Services
(408) 525-4113
tvargas at cisco.com

On Wed, 26 Feb 2003, Uwe Ligges wrote:

> Tony Vargas wrote:
> > R helpers,
> >
> > I am trying to add labels to my graphs.  I have a Perl Program which
> > generates thousands of R files like the one attached.
> >
> > My data files have 2 - 8 columns in them.  The first column of every data
> > file is a header (Time) - which I want to have plotted against everything
> > else.  My current formula just plots each column, which is fine, yet at
> > the bottom for my labels I wind up with numbers.  What I would like to do
> > is have R grab the Time label in increments of 144 data points and use
> > that to label my X-axis instead of just plain numbers.  (Each data file
> > has about 4400 columns).
>
> You have somehow confused columns and rows. Anyway, you might want to
> use something like
>
>   plot(..., xaxt="n")
>   temp <- seq(1, length(Time), by = 144)
>   axis(1, at = temp, labels = Time[temp])
>
> Uwe Ligges
>
>
> > I can kind of have R lable the bottom by chaning my plot to "plot(usr.cpu
> > ~ Time), yet then the graphs take much, much longer to generate.
> >
> > Worst case, I will use "plot(usr.cpu ~ Time)" - yet, anyone know why this
> > would take a very, very long time?
> >
> > Any ideas?
> >
> > Thanks,
> >
> > Tony
> >
> > Tony Vargas
> > Cisco Systems
> > Engineering Computing Services
> > (408) 525-4113
> > tvargas at cisco.com
>
>
>