I need to parse a large log say 300-400 mb
The commands like awk and cat etc are taking time.
Please help how to process.
I need to process the log for certain values of current date.
But I am unbale to do so. (17 Replies)
Hi All,
I need some help to effectively parse out a subset of results from a big results file.
Below is an example of the text file. Each block that I need to parse starts with "reading sequence file 10.codon" (next block starts with another number) and ends with **p-Value(s)**. I have given... (1 Reply)
All,
I have a problem with grep/fgrep/egrep. Basically I am building a 200 times 200 correlation matrix. The entries of this matrix need to be retrieved from another very large matrix (~100G). I tried to use the grep/fgrep/egrep to locate each entry and put them into one file. It looks very... (1 Reply)
Hi,
I'm having a problem printing two consecutive columns, as I iterate through a large matrix by twenty columns and I was looking for a solution.
My input file looks something like this
1 id1 A1 A2 A3 A4 A5 A6....A20 A21 A22 A23....A4001 A4002
2 id2 B1 B2 B3 B4 B5 B6...
3 id3 ...
4 id4... (8 Replies)
Hi all,
Is there a way to convert full data matrix to linearised left data matrix?
e.g full data matrix
Bh1 Bh2 Bh3 Bh4 Bh5 Bh6 Bh7
Bh1 0 0.241058 0.236129 0.244397 0.237479 0.240767 0.245245
Bh2 0.241058 0 0.240594 0.241931 0.241975 ... (8 Replies)
Hello. I was wondering if anyone could help. I have a file containing a large table in the format:
marker1 marker2 marker3 marker4
position1 position2 position3 position4
genotype1 genotype2 genotype3 genotype4
with marker being a name, position a numeric... (2 Replies)
Hello every body ! I'm a new in this forum and beginner in Perl scripting and I have some problems :(:(:(! I have a big file like that :
ID1 ID2 Identity
chromosome07_194379 chromosome01_168057 0.975
chromosome01_100293 chromosome01_168057 ... (23 Replies)
Hi. I have a large data file. the first column has unique identifiers. I have approximately 5 of these files and they have varying number of columns in their rows. I need to extract ~300 of the rows in to a separate file. I'm not looking for something that would do all 5 files at once, but... (7 Replies)
Hi All
I do have a matrix in the following format
a_2 a_3 s_4 t_6
b 0 0.9 0.004 0
c 0 0 1 0
d 0 0.98 0 0
e 0.0023 0.96 0 0.0034
I have thousands of rows
I would like to parse the maximum value in each of the row and out put that highest value along the column header of... (2 Replies)
Discussion started by: Kanja
2 Replies
LEARN ABOUT CENTOS
dlas2
dlas2.f(3) LAPACK dlas2.f(3)NAME
dlas2.f -
SYNOPSIS
Functions/Subroutines
subroutine dlas2 (F, G, H, SSMIN, SSMAX)
DLAS2 computes singular values of a 2-by-2 triangular matrix.
Function/Subroutine Documentation
subroutine dlas2 (double precisionF, double precisionG, double precisionH, double precisionSSMIN, double precisionSSMAX)
DLAS2 computes singular values of a 2-by-2 triangular matrix.
Purpose:
DLAS2 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 DOUBLE PRECISION
The (1,1) element of the 2-by-2 matrix.
G
G is DOUBLE PRECISION
The (1,2) element of the 2-by-2 matrix.
H
H is DOUBLE PRECISION
The (2,2) element of the 2-by-2 matrix.
SSMIN
SSMIN is DOUBLE PRECISION
The smaller singular value.
SSMAX
SSMAX is DOUBLE PRECISION
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 dlas2.f.
Author
Generated automatically by Doxygen for LAPACK from the source code.
Version 3.4.2 Tue Sep 25 2012 dlas2.f(3)