m01daf

m01daf © Numerical Algorithms Group, 2002.

Purpose

M01DAF Rank a vector, real numbers

Synopsis

[irank,ifail] = m01daf(rv<,order,ifail>)

Description

 
 M01DAF uses a variant of list-merging. The routine takes  
 advantage of natural ordering in the data, and uses a simple list 
 insertion in a preparatory passto generate ordered lists of length 
 at least 10. The ranking is stable: equal elements preserve their 
 ordering in the input data.

Parameters

m01daf

Required Input Arguments:

rv (:)                                real

Optional Input Arguments:                       <Default>

order (1)                             string   'a'
ifail                                 integer  -1

Output Arguments:

irank (:)                             integer
ifail                                 integer