[R-sig-Geo] readAsciiGrid - change color

[Muhammad Rahiz]

Hello all,

I have gridded data which I loaded using the readAsciiGrid function.

 > x <- read.AsciiGrid("data.txt, plot.image=TRUE).
 > image(x)

This works OK but how do I:

1. know what values are assigned to which color/shade

2. change the color template e.g. rainbow

3. insert a color bar?

Thanks.

Muhammad

-- 
Muhammad Rahiz  |  Doctoral Student in Regional Climate Modeling					
Climate Research Laboratory, School of Geography & the Environment	
Oxford University Centre for the Environment
South Parks Road, Oxford, OX1 3QY, United Kingdom 
Tel: +44 (0)1865-285194	 Mobile: +44 (0)7854-625974
Email: muhammad.rahiz at ouce.ox.ac.uk