rthorder: Parallel Order and Rank

In matloff/Rth: Rth: Parallel R through Thrust

Description

Similar to R's order() and rank().

Usage

rthorder(x, rnk = FALSE, nthreads = rth.nthreads())

Arguments

x	A numeric vector.
rnk	Logical; if TRUE, the result is like a call to R's rank(); if FALSE, it is like R's order().
nthreads	An optional argument for specifying the number of threads (in the case of OpenMP or TBB backends) that the routine should (at most) use. Does nothing with a CUDA backend. See nthreads.

Value

Vector of indices for either order or rank operation..

Examples

## Not run: 
x <- c(1.2,0.3,0.8,2.8)
order(x)  # prints 2,3,1,4
rthorder(x)  # same
rank(x)  # prints 3,1,2,4
rthorder(x,rnk=TRUE)  # same

## End(Not run)

matloff/Rth documentation built on May 21, 2019, 12:55 p.m.