Hello ,
I need your help to extract a line in a big file , and this line is always 11 lines
before a specific pattern . Do you know a way via Awk ?
Thanks in advance
npn35 (17 Replies)
Gents,
from these sample lines:
ZUCR.MI ZUCCHI SPA RISP NC 2,5000 6 ott 0,0000
ZV.MI ZIGNAGO VETRO 3,6475 16:36 Up 0,0075
is it possible to get this:
ZUCR.MI 2,5000
ZV.MI 3,6475
i.e. the first field, a separator and the first decimal number?
(in Europe we... (9 Replies)
Hi,
the text line looks like this:
"test1" " " "test2" "test3" "test4" "10" "test 10 12" "00:05:58" "filename.bin" "3.3MB" "/dir/name" "18459"
what's the best way to select any of it? So I can for example get only the time or size and so on.
I was trying awk -F""" '{print $N}' but... (3 Replies)
This is my first post, please be nice. I have tried to google and read different tutorials.
The task at hand is:
Input file input.txt (example)
abc123defhij-E-1234jslo
456ujs-W-abXjklp
From this file the task is to grep the -E- and -W- strings that are unique and write a new file... (5 Replies)
Hi All,
I am trying to extract data from a large text file , I want to extract lines which contains a five digit number followed by a hyphen , like
12345- , i tried with egrep ,eg : egrep "+" text.txt
but which returns all the lines which contains any number of digits followed by hyhen ,... (19 Replies)
FOLKS ,
i have a text file that is generated automatically of an another korn shell script, i want to bring in the fifth line of the text file in to my korn shell script and look for a particular word in the line . Can you all share some thoughts on this one.
thanks...
Venu (3 Replies)
I have hundreds of files to process. In each file
I need to look for a pattern then
extract value(s) from next line and then
search for value(s) selected from point (2) in the same file at a specific position.
HEADER ELECTRON TRANSPORT 18-MAR-98 1A7V
TITLE CYTOCHROME... (7 Replies)
Hi
This is my first post and I'm just a beginner. So please be nice to me.
I have a couple of html files where a pattern beginning with "http://www.site.com" and ending with "/resource.dat" is present on every 241st line. How do I extract this to a new text file?
I have tried sed -n 241,241p... (13 Replies)
Hi
I have a big text file. I want to extract all the sentences that matches at least 70% (seventy percent) of the words from each sentence based on a word list called A.
Say the format of the text file is as given below:
This is the first sentence which consists of fifteen words... (4 Replies)
Hi all,
I got a txt here and I need to extract all D 8888 44 and D 8888 43 + next field
=",g("en")];f._sn&&(f._sn= "og."+f._sn);for(var n in f)l.push("&"),l.push(g(n)),l.push("="),l.push(g(f));l.push("&emsg=");l.push(g(d.name+":"+d.message));var m=l.join("");Ea(m)&&(m=m.substr(0,2E3));c=m;var... (5 Replies)
Discussion started by: stinkefisch
5 Replies
LEARN ABOUT SUSE
pdl::opt::simplex
Simplex(3) User Contributed Perl Documentation Simplex(3)NAME
PDL::Opt::Simplex -- Simplex optimization routines
SYNOPSIS
use PDL::Opt::Simplex;
($optimum,$ssize) = simplex($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.
$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,$ssize) = simplex($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 v5.12.1 2009-10-17 Simplex(3)