powered by
In one pass over the vector NAs are handled according to parameter na.last by range_sortna, then, if the vector is unsorted, counting sort is invoked.
NA
na.last
range_sortna
countsort(x, na.last = NA)
a sorted vector
an integer vector
NA removes NAs, FALSE puts NAs at the beginning, TRUE puts NAs at the end
FALSE
TRUE
countsort(c(2L,0L,1L,NA,2L)) countsort(c(2L,0L,1L,NA,2L), na.last=TRUE) countsort(c(2L,0L,1L,NA,2L), na.last=FALSE)
Run the code above in your browser using DataLab