NAME¶
TDSORT - A generic sorting routine, normally used indirectly (by calling the
routine TDOTRI).
SYNOPSIS¶
CALL TDSORT (RWRK, NRWK, IORD, IWRK)
C-BINDING SYNOPSIS¶
#include <ncarg/ncargC.h>
void c_tdsort(float *rwrk, int nwrk, int iord, int *iwrk)
DESCRIPTION¶
This is an internal routine used for sorting. Originally, it was not intended
that a user should call this routine directly, but doing so will do no harm.
Given an array of NRWK reals in an array RWRK and an "ordering flag"
IORD, TDSORT returns a permutation vector IWRK such that, for every I and J
such that 1.LE.I.LE.J.LE.NWRK, if IORD is zero, then
RWRK(IWRK(I)).LE.RWRK(IWRK(J)), else RWRK(IWRK(I)).GE.RWRK(IWRK(J)).
The arguments of TDSORT are as follows:
- RWRK
- (an input array, of type REAL, dimensioned NWRK) - an array of NWRK real
numbers that are to be sorted. The contents of RWRK are returned
unchanged; the ordering is as specified by the contents of the array
IWRK.
- NWRK
- (an input expression of type INTEGER) - the dimension of RWRK (and of
IWRK).
- IORD
- (an input expression of type INTEGER) - if IORD is zero, the desired
ordering is from smallest numeric value to largest; otherwise, the desired
ordering is from largest value to smallest.
- IWRK
- (an output array of type INTEGER, dimensioned at least NWRK) - returned
containing a permutation of the integers from 1 to NWRK.
C-BINDING DESCRIPTION¶
The C-binding argument descriptions are the same as the FORTRAN argument
descriptions.
ACCESS¶
To use TDSORT or c_tdsort, load the NCAR Graphics libraries ncarg, ncarg_gks,
and ncarg_c, preferably in that order.
SEE ALSO¶
Online: tdclrs, tdctri, tddtri, tdgeti, tdgetr, tdgrds, tdgrid, tdgtrs, tdinit,
tditri, tdlbla, tdlbls, tdline, tdlnpa, tdmtri, tdotri, tdpack, tdpack_params,
tdpara, tdplch, tdprpa, tdprpi, tdprpt, tdseti, tdsetr, tdstri, tdstrs
COPYRIGHT¶
Copyright (C) 1987-2009
University Corporation for Atmospheric Research
The use of this Software is governed by a License Agreement.
