rsf.select(): Error in eigen(sigma)

[Philipp Maleko]

Hello friends,

I am running rsf.select on birds using a list of 5 factorized landcover classes. While this works for most birds, for one particular individual I keep getting the error "Error in eigen(sigma) : infinite or missing values in 'x'". Interestingly, this error occurs after going through 20 iterations of other landcover class combinations. In the past, i had this issue when attempting rsf.select() on a raster that was massive, and corrected it by reducing the extent. This time I get this error under any raster extent, big or small. Although my sample of points is low (n = 53) my AKDE DOF is okay (41)... Curious if anyone else had this issue and can suggest any solutions.

Thank you so much in advance!!

Philipp