R/findInt.R

In robertzk/monadicbase: The R Base Package

#  File src/library/base/R/findInt.R
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### This is a `variant' of  approx( method = "constant" ) :
findInterval <- function(x, vec, rightmost.closed = FALSE, all.inside = FALSE)
{
    ## Purpose: returns the indices of  x in vec;  vec[] sorted
    ## ---------------------------------------------------------
    ## Author: Martin Maechler, Date:  4 Jan 2002, 10:16 (of very different .C version)

    if(anyNA(vec))
	stop("'vec' contains NAs")
    if(is.unsorted(vec))
	stop("'vec' must be sorted non-decreasingly")
    .Internal(findInterval(as.double(vec), as.double(x),
                           rightmost.closed, all.inside))
}