Hi, I am totally new to shell scripting.
I have a String "c:\working\html\index.txt.12-12-2009.bkp" I want to check if the string has more than one "." character. If it does I would like to retrieve only "c:\working\html\index.txt" i.e, discard the second occurrence of "." and the rest of the... (7 Replies)
Thanks for the help yesterday. I have a little modification today,
I am trying the following:
i have a log file of a webbap which logs in the following pattern:
2011-08-14 21:10:04,535 blablabla ERROR Exception1 blablabla
bla
bla
bla
bla
2011-08-14... (2 Replies)
Hi, i have file f1.txt with data like:
CHECK
a
b
CHECK
c
d
CHECK
e
f
JOB_START
....
I want to match the last occurrence of 'CHECK' until the end of the file.
I can use awk:
awk '/^CHECK/ { buf = "" } { buf = buf "\n" $0 } END { print buf }' f1.txt | tail +2Is there a cleaner way of... (2 Replies)
Hi Folks,
I have two arrays
a:
aaa bbb ccc ddd
ddd aaa bbb ccc
ddd ccc aaa bbb
b:
aaa bbb ccc
aaa ccc bbb
bbb aaa ccc
ccc bbb aaa
I want to compare row by row a(c1:c4) to b(c1:c3). If elements of 'b' match... (5 Replies)
Hi,
I have a file, which contains the following log data.
I am trying to print fromt he file the following data:
I have tried using sed, but I am getting from the first pattern
Thanks for your help. (5 Replies)
Hi,
I am using sub to remove blank spaces and one pattern(=>) from the input string. It works fine when I am using two sub functions for the same. However it is giving error while I am trying to remove both spaces and pattern using one single sub function.
Working:
$ echo " OK => " |awk... (2 Replies)
Hi,
I am trying to print multiple patterns in a line using sed. But it is printing only the last occurance of a pattern.
If the line is
the the output should be
Lookup Procedure|Stored proc
But the output I am getting is
Stored proc
The code I am using is
echo... (9 Replies)
Hi,
let's say an input looks like:
A|C|C|D
A|C|I|E
A|B|I|C
A|T|I|B
as the title of the thread explains, I am trying to get something like:
1|A=4
2|C=2|B=1|T=1
3|I=3|C=1
4|D=1|E=1|C=1|B=1
i.e. a count of every character in each field (first column of output) independently, sorted... (4 Replies)
I am trying to use awk to extract and print the first ocurrence of NM_ and NP_ with a : before in each line. The input file is tab-delimeted, but the output does not need to be. The below does execute but prints all the lines in the file not just the patterns. Thank you :).
file tab-delimeted
... (2 Replies)
Hi, i have file file.txt with data like:
START
03:11:30 a
03:11:40 b
END
START
03:13:30 eee
03:13:35 fff
END
jjjjjjjjjjjjjjjjjjjjj
START
03:14:30 eee
03:15:30 fff
END
ggggggggggg
iiiiiiiiiiiiiiiiiiiiiiiii
I want the below output
START (13 Replies)
Discussion started by: Jyotshna
13 Replies
LEARN ABOUT DEBIAN
pdl::opt::simplex
Simplex(3pm) User Contributed Perl Documentation Simplex(3pm)NAME
PDL::Opt::Simplex -- Simplex optimization routines
SYNOPSIS
use PDL::Opt::Simplex;
($optimum,$ssize,$optval) = simplex($init,$initsize,$minsize,
$maxiter,
sub {evaluate_func_at($_[0])},
sub {display_simplex($_[0])}
);
DESCRIPTION
This package implements the commonly used simplex optimization algorithm. The basic idea of the algorithm is to move a "simplex" of N+1
points in the N-dimensional search space according to certain rules. The main benefit of the algorithm is that you do not need to calculate
the derivatives of your function.
$init is a 1D vector holding the initial values of the N fitted parameters, $optimum is a vector holding the final solution. $optval is
the evaluation of the final solution.
$initsize is the size of $init (more...)
$minsize is some sort of convergence criterion (more...) - e.g. $minsize = 1e-6
The sub is assumed to understand more than 1 dimensions and threading. Its signature is 'inp(nparams); [ret]out()'. An example would be
sub evaluate_func_at {
my($xv) = @_;
my $x1 = $xv->slice("(0)");
my $x2 = $xv->slice("(1)");
return $x1**4 + ($x2-5)**4 + $x1*$x2;
}
Here $xv is a vector holding the current values of the parameters being fitted which are then sliced out explicitly as $x1 and $x2.
$ssize gives a very very approximate estimate of how close we might be - it might be miles wrong. It is the euclidean distance between the
best and the worst vertices. If it is not very small, the algorithm has not converged.
FUNCTIONS
simplex
Simplex optimization routine
($optimum,$ssize,$optval) = simplex($init,$initsize,$minsize,
$maxiter,
sub {evaluate_func_at($_[0])},
sub {display_simplex($_[0])}
);
See module "PDL::Opt::Simplex" for more information.
CAVEATS
Do not use the simplex method if your function has local minima. It will not work. Use genetic algorithms or simulated annealing or
conjugate gradient or momentum gradient descent.
They will not really work either but they are not guaranteed not to work ;) (if you have infinite time, simulated annealing is guaranteed
to work but only after it has visited every point in your space).
SEE ALSO
Ron Shaffer's chemometrics web page and references therein: "http://chem1.nrl.navy.mil/~shaffer/chemoweb.html".
Numerical Recipes (bla bla bla XXX ref).
The demonstration (Examples/Simplex/tsimp.pl and tsimp2.pl).
AUTHOR
Copyright(C) 1997 Tuomas J. Lukka. All rights reserved. There is no warranty. You are allowed to redistribute this software /
documentation under certain conditions. For details, see the file COPYING in the PDL distribution. If this file is separated from the PDL
distribution, the copyright notice should be included in the file.
perl v5.14.2 2012-01-02 Simplex(3pm)