Difficulty with the "calculate_lsm" function in the package

[TallesBhering]

I'm trying to use the "calculate_lsm" in large list of 341 rasters. This files are land use and land cover data. Like this:

metricas_base <- landscapemetrics::calculate_lsm(landscape = municipios_r,
                                                 edge_depth = 1,
                                                 what = c('lsm_c_ca',
                                                          'lsm_c_area_mn', 
                                                          'lsm_c_np'),
                                                 full_name = TRUE,
                                                 verbose = TRUE,
                                                 progress = TRUE)

And this error occurs: Error in (function (classes, fdef, mtable) :
unable to find an inherited method for function ‘as.int’ for signature ‘"RasterLayer"’

Using "check_landscape" it appears that everything is ok. And checking with raster::dataType(x) it shows "INT1U". Can anyone give me some help? Still learning about this package.

[Nowosad]

@TallesBhering -- in short, you should not provide a list of RasterLayers as an input to this function. What you can do? You can either:

1. Provide a list of SpatRasters (from the terra package)
2. Provide one object of the RasterStack or RasterBrick class

Assuming that your object municipios_r is a list with 341 RasterLayer objects, you can do:

municipios_r2 = lapply(municipios_r, terra::rast)
metricas_base <- landscapemetrics::calculate_lsm(landscape = municipios_r2,
                                                 edge_depth = 1,
                                                 what = c('lsm_c_ca',
                                                          'lsm_c_area_mn', 
                                                          'lsm_c_np'),
                                                 full_name = TRUE,
                                                 verbose = TRUE,
                                                 progress = TRUE)

[TallesBhering]

Hi, @Nowosad.

I was using the raster::raster function. Now it work.

Thank you so much for the answer and help!