R help - Oct 2009 - rotate levelplot

Hi all,

I have a matrix with 5 rows and 10 columns, which represent the grids
on a rectangular map.
I used the code below to plot, but it gives me the map with the 10
columns as y-axis, and the 5 rows as the x-axis, and the (0,0) point
is at the usual bottom left hand corner. My map starts with the (0,0)
at the top left hand corner.

How can I rotate the map 90 degrees clockwise so the (0,0) starts at
the top left? That means I need the 10 columns to be x-axis. I cannot
transpose the matrix because the map would be laterally flipped over.

levelplot(quadsec.mat, colorkey=list(space="bottom"), scales=list
(tick.number=10), aspect=c("iso"))

Thanks, I'm ready to give more information if needed.

Kang Min

Hi Kang,


Could you send a reproducible sample-code?

Bests

miltinho

On Sat, Oct 24, 2009 at 11:32 PM, Kang Min <ngokangmin@gmail.com> wrote:
> Hi all,
>
> I have a matrix with 5 rows and 10 columns, which represent the grids
> on a rectangular map.
> I used the code below to plot, but it gives me the map with the 10
> columns as y-axis, and the 5 rows as the x-axis, and the (0,0) point
> is at the usual bottom left hand corner. My map starts with the (0,0)
> at the top left hand corner.
>
> How can I rotate the map 90 degrees clockwise so the (0,0) starts at
> the top left? That means I need the 10 columns to be x-axis. I cannot
> transpose the matrix because the map would be laterally flipped over.
>
> levelplot(quadsec.mat, colorkey=list(space="bottom"), scales=list
> (tick.number=10), aspect=c("iso"))
>
> Thanks, I'm ready to give more information if needed.
>
> Kang Min
>
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> PLEASE do read the posting guide
>
http://www.R-project.org/posting-guide.html<http://www.r-project.org/posting-guide.html>
> and provide commented, minimal, self-contained, reproducible code.
>
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