CLI flag for nodata

[NewForestsUS]

I'm working on a HFA raster (Archive.zip) wherein no data is referenced as nan. When I run 'raterstats' based on this geojson, the output says 0 for the count of nodata cells despite the fact that there are many.

foo.txt

Thanks in advance for any guidance!

[perrygeo]

"nodata" refers to cells which are equal to a specified value and explicitly represent the absence of data. They are mostly useful for integral data types.

"NaN" are not necessarily "nodata" (they could be cells where the result of some calculation yielded an incalculable value but it is still a valid data nonetheless) thus have slightly different semantics.

It's possible to have both nodata and NaN values, as might be the case with your merged.img data

Currently nans are just ignored in the calcs but are not explicitly counted. See #105 for some ongoing discussion - we need to separate nodata from nan and report them differently.

[NewForestsUS]

Thanks @perrygeo ! since I'm building the raster, I can attribute those cells as I please. Whats would be the best strategy/is it possible to give them a value that the current nodata result would track?

[sgoodm]

guessing this was solved but just in case

@NewForestsUS you can assign those cells any non-nan value (use your raster's nodata value if it already has one) and just pass it to rasterstats using the nodata option

@perrygeo, can close this one