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Add regions of statistical significance to a map plot

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mashtine on 12 Aug 2015
Commented: mortain on 3 Oct 2015
I am using the following to map out a trend in data over a region:
ax = worldmap(latlim, lonlim);
S = shaperead('landareas','UseGeoCoords',true);
surfacem(lat, lon, inpdata)
geoshow([S.Lat], [S.Lon],'Color','black');
This should be simple but I am not seeing fora with it. Is there any way to now add in a surfacem plot of a matrix holding p-values of the trends? I would like to simply add a cross where the corresponding cell in the p-value matrix is < 0.05.

Accepted Answer

Chad Greene
Chad Greene on 29 Aug 2015
You'll find a few hatch filling functions on the File Exchange site. For example, the ones mentioned here.
Generally, to apply non-mapping toolbox plotting functions to maps, you'll need to do something like
[x,y] = mfwdtran(lat,lon);
and then you'd be able to use hatchfill as shown in the Pick-of-the-Week example.
mortain on 3 Oct 2015
I am getting the same error after updating to Matlab 2015.
Have you found a fix for this problem?

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