I have a stack of rasters (one per species) and then I have a data frame
with lat/long columns along with a species name.
|fls= list.files(pattern="median")
s<- stack(fls)
df<-c("x","y","species name")|
I want to be able to just select one raster at a time to use with an
extract function. I want the selection to be based on the partial match
based on the species name column. I want to do this because the raster
names might not match perfectly the names in the species list, there
might be a lower/upper case mismatch or the raster layer name might be
longer, for example "species_name_median", or there might also be "_"
instead of a blank.
|for(i:length(df.species name))
{
result<-extract(s[[partial match to"species name[i]" ]],df.xy)
}|
I hope this makes sense that I just want to use one raster at a time for
the extraction. I am able to easily select a single raster using s[[i]]
but there is no guarantee that every species in the list has its
equivalent raster.
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