10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
The following code transform the matrix to columns. Is it possible to do it other way around ( get the input from the output) ?
input
y1 y2 y3 y4 y5
x1 0.3 0.5 2.3 3.1 5.1
x2 1.2 4.1 3.5 1.7 1.2
x3 3.1 2.1 1.0 4.1 2.1
x4 5.0 4.0 6.0 7.0 1.1
output
x1 y1 0.3
x2 y1 1.2
x3... (1 Reply)
Discussion started by: quincyjones
1 Replies
2. Shell Programming and Scripting
How can i convert two columns in to o and 1 matrix. thnks
Input
a c1
b c2
c c1
d c3
e c4
output
c1 c2 c3 c4
a 1 0 0 0
b 0 1 0 0
c 1 0 0 0
d 0 0 ... (5 Replies)
Discussion started by: quincyjones
5 Replies
3. UNIX for Dummies Questions & Answers
Dear Unixers,
I'm having some difficulty in converting an n x m data matrix into a dataset of 3 columns and nxm rows. As an example I want to convert this dataset
2 3 4 5
2 0.0 0.0 0.1 0.1
6 -0.3 2.0 0.0 0.3
7 -0.6 -1.1 0.5 0.3
9 -0.9 -4.1 -0.7 0.5
... (2 Replies)
Discussion started by: tintin72
2 Replies
4. Programming
Dear All
I have a huge data for 3 columns similar to this
D2cls0 D2cls0 1
D2cls0 D2cls1 0.308
D2cls0 D2cls2 0.554
D2cls0 D2cls3 0.287
D2cls0 D2cls4 0.633
D2cls0 D2cls5 0.341
D2cls0 D2cls6 0.665
D2cls0 D2cls7 0.698
D2cls0 D2cls8 0.625
D2cls0 D2cls9 0.429
I... (9 Replies)
Discussion started by: bala06
9 Replies
5. Programming
Dear All
I would like to convert columns to matrix
For example my data looks like this
D2 0 D2 0 1.0
D2 0 D2 1 0.308
D2 0 D2 2 0.554
D2 0 D2 3 0.287
D2 0 D2 4 0.633
D2 0 D2 5 0.341
D2 0 D2 6 0.665
D2 0 D2 7 0.698
D2 0 D2 8 0.625
D2 0 D2 9 0.429
D2 0 D2 10 0.698
D2 0 D2 11... (7 Replies)
Discussion started by: bala06
7 Replies
6. Shell Programming and Scripting
Hi guys,
here https://www.unix.com/shell-programming-scripting/193043-3-column-csv-correlation-matrix-awk-perl.html I found awk script converting
awk '{
OFS = ";"
if (t) {
if (l != $1)
t = t OFS $1
} else t = OFS $1
x = x ? x OFS $NF : $NF
l = $1
}... (2 Replies)
Discussion started by: grincz
2 Replies
7. Shell Programming and Scripting
Hi All,
I have a huge (and its really huge!) matrix about 400GB in size (2 million rows by 1.5 million columns) . I am trying to optimize its space by creating a sparse representation of it.
Miniature version of the matrix looks like this (matrix.mtx):
3.4543 65.7876 54.564
2.12344... (4 Replies)
Discussion started by: shoaibjameel123
4 Replies
8. Shell Programming and Scripting
I have a huge matrix file containing some 1.5 million rows and 6000 columns. The matrix looks something like this:
1 2 3
4 5 6
7 8 9
3 4 5
I want to add all the numbers in the columns of this matrix and display the result to my stdout. This means that the numbers in the first column are:
... (2 Replies)
Discussion started by: shoaibjameel123
2 Replies
9. Shell Programming and Scripting
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
10. UNIX for Dummies Questions & Answers
Dear Unix Gurus,
I have a sample data set that looks like this
y1 y2 y3 y4 y5
x1 0.3 0.5 2.3 3.1 5.1
x2 1.2 4.1 3.5 1.7 1.2
x3 3.1 2.1 1.0 4.1 2.1
x4 5.0 4.0 6.0 7.0 1.1
I want to open it up so that I get
x1 y1 0.3
x2 y1 1.2
x3 y1 3.1
x4 y1 5.0
x1 y2 0.5
x2 y2... (3 Replies)
Discussion started by: tintin72
3 Replies
slas2.f(3) LAPACK slas2.f(3)
NAME
slas2.f -
SYNOPSIS
Functions/Subroutines
subroutine slas2 (F, G, H, SSMIN, SSMAX)
SLAS2 computes singular values of a 2-by-2 triangular matrix.
Function/Subroutine Documentation
subroutine slas2 (realF, realG, realH, realSSMIN, realSSMAX)
SLAS2 computes singular values of a 2-by-2 triangular matrix.
Purpose:
SLAS2 computes the singular values of the 2-by-2 matrix
[ F G ]
[ 0 H ].
On return, SSMIN is the smaller singular value and SSMAX is the
larger singular value.
Parameters:
F
F is REAL
The (1,1) element of the 2-by-2 matrix.
G
G is REAL
The (1,2) element of the 2-by-2 matrix.
H
H is REAL
The (2,2) element of the 2-by-2 matrix.
SSMIN
SSMIN is REAL
The smaller singular value.
SSMAX
SSMAX is REAL
The larger singular value.
Author:
Univ. of Tennessee
Univ. of California Berkeley
Univ. of Colorado Denver
NAG Ltd.
Date:
September 2012
Further Details:
Barring over/underflow, all output quantities are correct to within
a few units in the last place (ulps), even in the absence of a guard
digit in addition/subtraction.
In IEEE arithmetic, the code works correctly if one matrix element is
infinite.
Overflow will not occur unless the largest singular value itself
overflows, or is within a few ulps of overflow. (On machines with
partial overflow, like the Cray, overflow may occur if the largest
singular value is within a factor of 2 of overflow.)
Underflow is harmless if underflow is gradual. Otherwise, results
may correspond to a matrix modified by perturbations of size near
the underflow threshold.
Definition at line 108 of file slas2.f.
Author
Generated automatically by Doxygen for LAPACK from the source code.
Version 3.4.2 Tue Sep 25 2012 slas2.f(3)