[RS-ecology] Fwd: rasterCVA gives a blank map as output

[Natalia Quinteros]

Hi List,

In chapter 9, when attempting a spectral change vector analysis, the
rasterCVA gives as an input a blank map!

changeVec <- rasterCVA(tc2011[[1:2]], tc1988[[1:2]])

Any ideas why?

Thanks,

Natalia
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