Multiplying a raster object
On 02/23/2016 09:22 PM, Tadaishi Yatabe-Rodriguez wrote:
Hi community, I have a raster object of a kernel density, where the linear unit is meter, and when I plot it it gives me very small density values (units per sq meter, I suppose). I figure that if I multiply it, say by a 1000, it will give density values in units per sq km.
I don't know much about kernel densities, but if you want to convert units/m^2 to units/km^2 you'd have to multiply by 1 000 000 instead of 1000. Hope that helps explaining the incoherence in your results.
It looks good on the legend, but I wonder: is this a correct thing to do? I wonder this because when I add the values of the raster it does not add up to the number of points in my original ppp object from which I created the density. Thanks, Tada