Sponsored Content
Top Forums Shell Programming and Scripting PERL: How do I get both sizes of a matrix? Post 302137739 by kahuna on Wednesday 26th of September 2007 04:40:34 PM
Old 09-26-2007
Although it's valid only for a column 0. try
Code:
$#{$matrix[0]}
scalar @{$matrix[0]}
$n_cols = @{$matrix[0]}

 

9 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

PERL: How do i print an associative matrix?

Hello guys, I have in PERL an associative 2-dimensional array, called matrix. The array (actually the matrix) is made up like this matrix = x; matrix = y; matrix = w; matrix = z; ... but the names a, b, c, d are set just at runtime. The question is: how can i get all the keys of... (2 Replies)
Discussion started by: foo.bar
2 Replies

2. Shell Programming and Scripting

Perl- matrix problem

A C G T - A 5 -4 -4 -4 -5 C -4 5 -4 -4 -5 G -4 -4 5 -4 -5 T -4 -4 -4 5 -5 - -5 -5 -5 -5 0 So lets say I have a matrix which looks something like (above). Its basically a scoring matrix. the numbers are... (2 Replies)
Discussion started by: aj05
2 Replies

3. Shell Programming and Scripting

diagonal matrix to square matrix

Hello, all! I am struggling with a short script to read a diagonal matrix for later retrieval. 1.000 0.234 0.435 0.123 0.012 0.102 0.325 0.412 0.087 0.098 1.000 0.111 0.412 0.115 0.058 0.091 0.190 0.045 0.058 1.000 0.205 0.542 0.335 0.054 0.117 0.203 0.125 1.000 0.587 0.159 0.357... (11 Replies)
Discussion started by: yifangt
11 Replies

4. Shell Programming and Scripting

Invert Matrix of Data - Perl

I have columnar data in arrays perl, Example - @a = (1,2,3); @array1 = (A,B,C); @array2 = (D,E,F); @array3 = (I,R,T); I want the data to be formatted and printed as 1 A D I 2 B E F 3 C F T and so on... (8 Replies)
Discussion started by: dinjo_jo
8 Replies

5. Shell Programming and Scripting

3 column .csv --> correlation matrix; awk, perl?

Greetings, salutations. I have a 3 column csv file with ~13 million rows and I would like to generate a correlation matrix. Interestingly, you all previously provided a solution to the inverse of this problem. Thread title: "awk? adjacency matrix to adjacency list / correlation matrix to list"... (6 Replies)
Discussion started by: R3353
6 Replies

6. Programming

Matrix addition - Perl - PDL

Hi All, I have a question. I need to add 3 matrices of size 2000 x 2000. (i.e) 2000 rows and 2000 columns using Perl::PDL module. I used the following perl script #!/usr/bin/perl -w use strict; use warnings; use PDL; use PDL::Matrix; if ( @ARGV != 3 ) { die 'Two matrix files are... (1 Reply)
Discussion started by: Fredrick
1 Replies

7. Shell Programming and Scripting

Perl- creating a matrix from a 3 column file

Dear all, I'm new in perl scripting and I'm trying to creating a matrix from a 3 column file sorting data in a particular manner. In the final matrix I need to have the first column "IDs" on the header of the columns and the second column values on the header of each row. And the value fo the... (2 Replies)
Discussion started by: gabrysfe
2 Replies

8. Shell Programming and Scripting

Randomization a matrix - perl / Shell

Hello all, I have a tricky question! (at least for me it is!). I'll try to explain it carefully here. Hope you can help me solving the whole or even parts of it! Here it is: I have a big input 0\1 table as a very simplified one is shown below: (The last row and column are the sum and... (0 Replies)
Discussion started by: @man
0 Replies

9. Shell Programming and Scripting

Make Separated files from a single matrix - Perl

Hey Masters, Here is my input: fragmentID chromosome start end HEL25E TRIP1 r5GATC2L00037 chr2L 5301 6026 0.03 0.036 r5GATC2L00038 chr2L 6023 6882 -0.025 -0.041 r5GATC2L00040 chr2R 6921 7695 -0.031 0.005 r5GATC2L00042 chr2R 7715 8554 -0.006 -0.024 r5GATC2L00043 chr3L 8551 8798 0.042 0... (4 Replies)
Discussion started by: @man
4 Replies
claqr1.f(3)							      LAPACK							       claqr1.f(3)

NAME
claqr1.f - SYNOPSIS
Functions/Subroutines subroutine claqr1 (N, H, LDH, S1, S2, V) CLAQR1 sets a scalar multiple of the first column of the product of 2-by-2 or 3-by-3 matrix H and specified shifts. Function/Subroutine Documentation subroutine claqr1 (integerN, complex, dimension( ldh, * )H, integerLDH, complexS1, complexS2, complex, dimension( * )V) CLAQR1 sets a scalar multiple of the first column of the product of 2-by-2 or 3-by-3 matrix H and specified shifts. Purpose: Given a 2-by-2 or 3-by-3 matrix H, CLAQR1 sets v to a scalar multiple of the first column of the product (*) K = (H - s1*I)*(H - s2*I) scaling to avoid overflows and most underflows. This is useful for starting double implicit shift bulges in the QR algorithm. Parameters: N N is integer Order of the matrix H. N must be either 2 or 3. H H is COMPLEX array of dimension (LDH,N) The 2-by-2 or 3-by-3 matrix H in (*). LDH LDH is integer The leading dimension of H as declared in the calling procedure. LDH.GE.N S1 S1 is COMPLEX S2 S2 is COMPLEX S1 and S2 are the shifts defining K in (*) above. V V is COMPLEX array of dimension N A scalar multiple of the first column of the matrix K in (*). Author: Univ. of Tennessee Univ. of California Berkeley Univ. of Colorado Denver NAG Ltd. Date: September 2012 Contributors: Karen Braman and Ralph Byers, Department of Mathematics, University of Kansas, USA Definition at line 108 of file claqr1.f. Author Generated automatically by Doxygen for LAPACK from the source code. Version 3.4.2 Tue Sep 25 2012 claqr1.f(3)
All times are GMT -4. The time now is 04:13 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy