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)
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)
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)
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)
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)
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)
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
LEARN ABOUT CENTOS
dlag2s
dlag2s.f(3) LAPACK dlag2s.f(3)NAME
dlag2s.f -
SYNOPSIS
Functions/Subroutines
subroutine dlag2s (M, N, A, LDA, SA, LDSA, INFO)
DLAG2S converts a double precision matrix to a single precision matrix.
Function/Subroutine Documentation
subroutine dlag2s (integerM, integerN, double precision, dimension( lda, * )A, integerLDA, real, dimension( ldsa, * )SA, integerLDSA,
integerINFO)
DLAG2S converts a double precision matrix to a single precision matrix.
Purpose:
DLAG2S converts a DOUBLE PRECISION matrix, SA, to a SINGLE
PRECISION matrix, A.
RMAX is the overflow for the SINGLE PRECISION arithmetic
DLAG2S checks that all the entries of A are between -RMAX and
RMAX. If not the convertion is aborted and a flag is raised.
This is an auxiliary routine so there is no argument checking.
Parameters:
M
M is INTEGER
The number of lines of the matrix A. M >= 0.
N
N is INTEGER
The number of columns of the matrix A. N >= 0.
A
A is DOUBLE PRECISION array, dimension (LDA,N)
On entry, the M-by-N coefficient matrix A.
LDA
LDA is INTEGER
The leading dimension of the array A. LDA >= max(1,M).
SA
SA is REAL array, dimension (LDSA,N)
On exit, if INFO=0, the M-by-N coefficient matrix SA; if
INFO>0, the content of SA is unspecified.
LDSA
LDSA is INTEGER
The leading dimension of the array SA. LDSA >= max(1,M).
INFO
INFO is INTEGER
= 0: successful exit.
= 1: an entry of the matrix A is greater than the SINGLE
PRECISION overflow threshold, in this case, the content
of SA in exit is unspecified.
Author:
Univ. of Tennessee
Univ. of California Berkeley
Univ. of Colorado Denver
NAG Ltd.
Date:
September 2012
Definition at line 109 of file dlag2s.f.
Author
Generated automatically by Doxygen for LAPACK from the source code.
Version 3.4.2 Tue Sep 25 2012 dlag2s.f(3)