Log scales
Thanks a million Uwe.
I used the following from a forum to do it and it worked out:
mylevels <-c(-150,-100,-50,-20,-10,-5,-2,-1,1,2,5,10,20,50,100,150)
cols <- jet.colors(length(mylevels) - 1)
customAxis <- function() {
n <- length(mylevels)
y <- seq(min(mylevels), max(mylevels), length.out=n)
rect(0, y[1:(n-1)], 1, y[2:n], col=cols)
axis(4, at=y, labels=mylevels)
}
Many thanks,
Emily
Uwe Ligges wrote:
On 17.05.2013 13:34, Emily Gleeson wrote:
Dear All, I have a query about using log scales for filled.contour plots. I have used log values on the x and y axes but labelled the axes with their linear (non-log) values. I's like to do the same with the contour values. I want the range to go from -100% to +100%. To use log I just added 1000 to the % values before taking the log. I'd like the original % values to appear on the contour lines and in the contour colourbar labelling.
One way would be to keep the original scale and set explicit breaks for the levels of contour lines as needed. Best, Uwe Ligges
I'd appreciate any suggestions you have.
Many thanks,
Emily Gleeson
*********************************************************************************
This e-mail and any files transmitted with it are confid...{{dropped:9}}
______________________________________________ R-help at r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
*********************************************************************************
This e-mail and any files transmitted with it are confid...{{dropped:9}}