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Shell Programming and Scripting
awk to log transform on matrix file
Post 302773825 by Yoda on Thursday 28th of February 2013 06:15:31 PM
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Hello. I'm trying to use the awk command to convert certains fields to lgo base 2, not base 10.
I'm trying command lines like:
awk '$2 $5 $7 {print log(2)($2), log(2)($5), $7) filein.txt > fileout.txt
I'm trying to make a deadline.
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Hi everyone
I am very new at awk but think that that might be the best strategy for this. I have a matrix very similar to a correlation matrix and in practical terms I need to convert it into a list containing the values from the matrix (one value per line) with the first field of the line (row... (5 Replies)
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Hello to all,
I am very new in the shell scripting and I need help. I have data for several individuals in several rows followed by a tag and by 5 values per row, with the name of the individual in the first column, e.g.:
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Hi,
Needs for statistics, doing converting
Here is a sample file
Input :
1|A|17,94
1|B|22,59
1|C|56,93
2|A|63,71
2|C|23,92
5|B|19,49
5|C|67,58
expecting something like that
Output :
1|A|17,94|B|22,59|C|56,93
2|A|63,71|B|0|C|23,92
5|A|0|B|19,49|C|67,58 (11 Replies)
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Hi, every one. I have two files ,one is in matrix like this, one is a list with the same data as the matrix.
AB AE AC AD AA AF
SA 3 4 5 6 4 6
SC 5 7 2 8 4 3
SD 4 6 5 3 8 3
SE 45 ... (5 Replies)
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Hi, is it possible to add a number to all the values in a file and log transform them using awk. thanx in advance
input
name c1 c2 c3 c4
r1 0 0.2 0.3 0.4
r2 0 0 0 1
r3 1 0 0 0
r4 0 0 1 ... (1 Reply)
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input
A1 B1 A2 B2
0 0 1 1
1 0 0 1
0 1 1 0
1 1 1 1
Output
label A1 B1 A2 B2
A1 2 1 1 2
B1 1 2 2 1
A2 1 2 3 2
B2 2 1 2 3
Ex:
The number of times that A1 and B1 row values are both 1 should be printed as output.
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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 REDHAT
dlasv2
DLASV2(l) ) DLASV2(l) NAME
DLASV2 - compute the singular value decomposition of a 2-by-2 triangular matrix [ F G ] [ 0 H ] SYNOPSIS
SUBROUTINE DLASV2( F, G, H, SSMIN, SSMAX, SNR, CSR, SNL, CSL ) DOUBLE PRECISION CSL, CSR, F, G, H, SNL, SNR, SSMAX, SSMIN PURPOSE
DLASV2 computes the singular value decomposition of a 2-by-2 triangular matrix [ F G ] [ 0 H ]. On return, abs(SSMAX) is the larger singu- lar value, abs(SSMIN) is the smaller singular value, and (CSL,SNL) and (CSR,SNR) are the left and right singular vectors for abs(SSMAX), giving the decomposition [ CSL SNL ] [ F G ] [ CSR -SNR ] = [ SSMAX 0 ] [-SNL CSL ] [ 0 H ] [ SNR CSR ] [ 0 SSMIN ]. ARGUMENTS
F (input) DOUBLE PRECISION The (1,1) element of the 2-by-2 matrix. G (input) DOUBLE PRECISION The (1,2) element of the 2-by-2 matrix. H (input) DOUBLE PRECISION The (2,2) element of the 2-by-2 matrix. SSMIN (output) DOUBLE PRECISION abs(SSMIN) is the smaller singular value. SSMAX (output) DOUBLE PRECISION abs(SSMAX) is the larger singular value. SNL (output) DOUBLE PRECISION CSL (output) DOUBLE PRECISION The vector (CSL, SNL) is a unit left singular vector for the singular value abs(SSMAX). SNR (output) DOUBLE PRECISION CSR (output) DOUBLE PRECISION The vector (CSR, SNR) is a unit right singular vector for the singular value abs(SSMAX). FURTHER DETAILS
Any input parameter may be aliased with any output parameter. Barring over/underflow and assuming a guard digit in subtraction, all output quantities are correct to within a few units in the last place (ulps). 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. LAPACK version 3.0 15 June 2000 DLASV2(l)