very useful tool and thanks very much for that.
A rather unusual remark/question: I'm confused by all the 'updates' you've been undertaking. I try to keep the files I use updates hence I check this website regularly. You have 'updated' the contribution several times under the pretense of 'present the contribution link more prominently'. I suppose you don't just do this to bump this file up the 'most recent' list but I can never find an update.
I guess I'm not the only one spending time to check for whatever it is you updated in the code. As good as the code is, the 'recently updated' list on the file exchange becomes rather useless if everybody did that, or are you trying to move everybody over to github :)
I use imagescnan quite a bit. However, I can't export those figures as pdf since the white patches masking the nan areas are always dropped when using export_fig. I can't seemt to find a way to keep the patches. Exporting using standard pdf export works fine in this regard, yet it's very clumsy.... that's why export_fig is always first :)