pixel maps

[jean...@naankuse.com]

Hi all

Very new to this and to SPACECAP...was wondering if anybody can advise on how to make the pixelated maps?

Have read some studies mentioning that maps were made IN SPACECAP and another which mentioned that the map was made in ARC?  Is there a manual for this (Other than the SPACECAP user manual which does not mention how to make these maps?)

Thanks in advance.

Jeanette

[Jeffrey Royle]

hi Jeanette,

 SPACECAP should produce an output file of the expected number of activity centers for each pixel of the potential activity centers file. ("pixel density" I believe it's called in the SPACECAP help file).

 If you have that output  along with the coordinates of the potential activity centers then there are many many ways to produce useful plots. For example, you can use the rasterFromXYZ function in the raster package (See help file) or you can look at the primitive code in the spatial.plot() function of the scrbook package and try to improve on that idea, see here:

https://sites.google.com/site/spatialcapturerecapture/scrbook-r-package

or you can use any GIS package to post-process the output.  

 Note that both 'secr' and 'oSCR' packages (https://sites.google.com/site/spatialcapturerecapture/oscr-package) have predict() functions that will produce density plots also (predict.oSCR() is the function in oSCR).

regards,

andy

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