12-21-2007
How to sort a string with numbers
Hi,
I need help to sort a file contents.
I am using sort -r option to basically reverse the comparison in descending order. However, i found out that my file is not sorted according, can anyone please help.
My data is something like:-
Hello world
20.982342864 343
19.234355545 222
1.5567846 345
17.8767787 200
If I use the option -g or -n it works..but it is in ascending order. but I would like to display in descending order.I tried -nr but the Hello world line would be reverse as well as the last item.
My desired output would be
Hello world
20.982342864 343
19.234355545 222
17.8767787 200
1.5567846 345
Thanks.
Last edited by ahjiefreak; 12-21-2007 at 12:48 AM..
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LEARN ABOUT DEBIAN
dlamrg.f
dlamrg.f(3) LAPACK dlamrg.f(3)
NAME
dlamrg.f -
SYNOPSIS
Functions/Subroutines
subroutine dlamrg (N1, N2, A, DTRD1, DTRD2, INDEX)
DLAMRG
Function/Subroutine Documentation
subroutine dlamrg (integerN1, integerN2, double precision, dimension( * )A, integerDTRD1, integerDTRD2, integer, dimension( * )INDEX)
DLAMRG
Purpose:
DLAMRG will create a permutation list which will merge the elements
of A (which is composed of two independently sorted sets) into a
single set which is sorted in ascending order.
Parameters:
N1
N1 is INTEGER
N2
N2 is INTEGER
These arguements contain the respective lengths of the two
sorted lists to be merged.
A
A is DOUBLE PRECISION array, dimension (N1+N2)
The first N1 elements of A contain a list of numbers which
are sorted in either ascending or descending order. Likewise
for the final N2 elements.
DTRD1
DTRD1 is INTEGER
DTRD2
DTRD2 is INTEGER
These are the strides to be taken through the array A.
Allowable strides are 1 and -1. They indicate whether a
subset of A is sorted in ascending (DTRDx = 1) or descending
(DTRDx = -1) order.
INDEX
INDEX is INTEGER array, dimension (N1+N2)
On exit this array will contain a permutation such that
if B( I ) = A( INDEX( I ) ) for I=1,N1+N2, then B will be
sorted in ascending order.
Author:
Univ. of Tennessee
Univ. of California Berkeley
Univ. of Colorado Denver
NAG Ltd.
Date:
November 2011
Definition at line 100 of file dlamrg.f.
Author
Generated automatically by Doxygen for LAPACK from the source code.
Version 3.4.1 Sun May 26 2013 dlamrg.f(3)