[R] Making heatmaps

[David Winsemius]

On Sep 16, 2010, at 9:04 PM, wns09a wrote:

>
> Basically, I have the location data for about 1,000 pitches.  I can  
> get them
> to show up correctly on normal plots, but I am genuinely messed up on
> heatmaps.
>
>> location <- read.csv('C:/Users/William/Downloads/09Location.csv')
>> location <- as.matrix(location)
>
> Like I said, that can get a plot fine.

You may think that you attached a file and that we can see it. The  
first may be true, but the second is FALSE. You probably want a 2D  
density estimator. Try searching rseek or RSiteSearch for "2d density".



> Should I use image or heatmap?
> For the record, I want something like
> this:http://2.bp.blogspot.com/_hZYdwHvvD9U/THo_YaK0dGI/AAAAAAAAAgg/VjzVngS2-BU/s1600/clifflee3.png
>
> I don't need the contour lines, though.
> -- 
> View this message in context: http://r.789695.n4.nabble.com/Making-heatmaps-tp2543201p2543201.html
> Sent from the R help mailing list archive at Nabble.com.

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David Winsemius, MD
West Hartford, CT