Re: [R] z limits

From: John Dougherty <jwd_at_surewest.net>
Date: Mon 09 May 2005 - 10:44:27 EST

On Sunday 08 May 2005 16:32, Jennifer Skene wrote:
> Hello,
>
> I am using R to run a program called GRASP - Generalized Regression
> Analysis and Spatial Prediction.
>
> I am trying to draw a figure using GRASP, and I get the following
> error message in R:
>
> Error in image.default(map, col = heat.colors(12)) :
> invalid z limits
>
> What are z limits? Can I manually set them?
>
> Please let me know if you have any insight on this!
>
> Thanks,
> Jennifer Skene

I believe that the "z" limits in GRASP relate to the third dimensional variable. If you are using spatial data that uses either altitude or another variable that gives a pseudo-surface, you should probably check the variable's range.

JWD



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