h <- vector( "integer", length = length(Data[,1]))
f <- function(x, y, z, q){
for( i in 1:length(x)){
if (identical(z[i],y[i])) h[i] <- 1
else if ( identical (x[i], x[i-1]) && (z[i] <= q[i]))
h[i] <-as.integer(h[i-1]+1)
h[i] <- "" }
return(h)
}
as_tibble(Data) # just to illustrate the dataset
Data <- mutate(Data, New_Col = f(Col_1, Col_2, Col_3, Col_4))
This works but slowly, it took: 116.536000 seconds
Aucun commentaire:
Enregistrer un commentaire