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edited Apr 13, 2017 at 12:33

Pick is the map algebra analog of a "case" or "switch" statement. Like them it is not indispensable but it can be convenient (and more efficient than deeply nested binary logical operators).

Notable among the uses to which I have put this operation is its ability to implement a cellular automaton.

Another handy use is random selection of rasters. A worked example appears on this site at Creating raster by randomly choosing cell value from multiple overlapping rasters?Creating raster by randomly choosing cell value from multiple overlapping rasters?

Pick is the map algebra analog of a "case" or "switch" statement. Like them it is not indispensable but it can be convenient (and more efficient than deeply nested binary logical operators).

Notable among the uses to which I have put this operation is its ability to implement a cellular automaton.

Another handy use is random selection of rasters. A worked example appears on this site at Creating raster by randomly choosing cell value from multiple overlapping rasters?

Pick is the map algebra analog of a "case" or "switch" statement. Like them it is not indispensable but it can be convenient (and more efficient than deeply nested binary logical operators).

Notable among the uses to which I have put this operation is its ability to implement a cellular automaton.

Another handy use is random selection of rasters. A worked example appears on this site at Creating raster by randomly choosing cell value from multiple overlapping rasters?

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created Sep 29, 2014 at 19:40

whuber

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Pick is the map algebra analog of a "case" or "switch" statement. Like them it is not indispensable but it can be convenient (and more efficient than deeply nested binary logical operators).

Notable among the uses to which I have put this operation is its ability to implement a cellular automaton.

Another handy use is random selection of rasters. A worked example appears on this site at Creating raster by randomly choosing cell value from multiple overlapping rasters?