Hi,
What you probably want is
nrow(st_coordinates(st_centroid(sentrau)))
which is equal to now(sentrau)
nrow(st_coordinates(sentrau)) is equal to sum(sapply(1:nrow(sentrau), FUN =
function(i) nrow(st_coordinates(sentrau[i, ]))))
as sentrau is MULTIPOLYGON
Hope this helps.
> On 11 May 2024, at 13:47, Aymard Loïc KWEKEU KWEKEU
> <kwekeuaymardl...@gmail.com> wrote:
>
>> hos <- geo[!sf::st_is_empty(geo), ]
>
>> santrau <-cbind(hos, st_coordinates(st_centroid(hos$geometry)))
>
>> sontrau <- subset(santrau, select=c(1:40))
>
>> sentrau <- na.omit(sontrau)
>
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