Hello,
suppose i have a student.dat file whose format is
studentno studentname semester marks1 marks2 marks3 total
then how can i sort first in semester wise and then total wise? I mean semester wise ranking wise record should be displayed. Semester should be displayed in ascending order (4 , 5. etc ) and result should be descending order(since it is to be displayed rank wise).
Hi,
I am facing a small problem while I am doing the sort.
Problem Definition:
I have a file which has the following data.
>cat test.dat
zxzxc
asdasd
qwaxcZa
qwaxcA
When I do a sort on this file.
the result set is
asdasd
qwaxcA (4 Replies)
Suppose I want to find the number of uniq lines in a file. I use the following command:
sort file1 | uniq -c | wc -l
But if for some reason sort fails, the above command returns 0 as the answer.
Why would sort fail ? sort makes use of directories /tmp or /var/tmp to store temporary files.... (7 Replies)
I have a text file comprising of 3 columns
1. First column - numeric count/frequency of error codes
2. Second column - alphanumeric hyphenated error code
3. Third column - Error code description (alphanumeric)
184 ABCD-954 Errorcodedescription1
35645 DFMS-323 Errorcodedescription2
43534 ... (2 Replies)
Hi,
I would like to know given that I have 3 columns.
Let say I have first 3 columns to do operation and these operation output is printed out each line by line using AWK and associative array.Currently in the output file, I do a sort by -r for the operation output.
The problem comes to... (1 Reply)
Hi All,
After Sorting directories and files i have got following output as below, now i only want the strings common in them, so the actual output should be as below in the bottom. How do i do that?
Thanks
-adsi
File to be modified:-
Common Components for ----> AA... (4 Replies)
Hello All,
Today i have been asking lots of question, hope to become good in scripting soon with all the wonderful advices i get. The question is i want to sort data a get uniq string from it. The code i am using to generate the output is:-
check_sun() {
for i in $SUN_PLATFORM
do
$ECHO... (0 Replies)
Hi to all.
I'm trying to sort this with the Unix command sort.
user1:12345678:3.5:2.5:8:1:2:3
user2:12345679:4.5:3.5:8:1:3:2
user3:12345687:5.5:2.5:6:1:3:2
user4:12345670:5.5:2.5:5:3:2:1
user5:12345671:2.5:5.5:7:2:3:1
I need to get this:
user3:12345687:5.5:2.5:6:1:3:2... (7 Replies)
I have a file with three fields of data for example say we have
1420 $12.56 45
3456 $15.89 14
2341 $25.87 32
I need to use a command to show who is getting paid the highest amount to standard output. I am not sure if I should use a sort command or a copy and paste... (1 Reply)
Discussion started by: drew211
1 Replies
LEARN ABOUT CENTOS
dla_lin_berr
dla_lin_berr.f(3) LAPACK dla_lin_berr.f(3)NAME
dla_lin_berr.f -
SYNOPSIS
Functions/Subroutines
subroutine dla_lin_berr (N, NZ, NRHS, RES, AYB, BERR)
DLA_LIN_BERR computes a component-wise relative backward error.
Function/Subroutine Documentation
subroutine dla_lin_berr (integerN, integerNZ, integerNRHS, double precision, dimension( n, nrhs )RES, double precision, dimension( n, nrhs
)AYB, double precision, dimension( nrhs )BERR)
DLA_LIN_BERR computes a component-wise relative backward error.
Purpose:
DLA_LIN_BERR computes component-wise relative backward error from
the formula
max(i) ( abs(R(i)) / ( abs(op(A_s))*abs(Y) + abs(B_s) )(i) )
where abs(Z) is the component-wise absolute value of the matrix
or vector Z.
Parameters:
N
N is INTEGER
The number of linear equations, i.e., the order of the
matrix A. N >= 0.
NZ
NZ is INTEGER
We add (NZ+1)*SLAMCH( 'Safe minimum' ) to R(i) in the numerator to
guard against spuriously zero residuals. Default value is N.
NRHS
NRHS is INTEGER
The number of right hand sides, i.e., the number of columns
of the matrices AYB, RES, and BERR. NRHS >= 0.
RES
RES is DOUBLE PRECISION array, dimension (N,NRHS)
The residual matrix, i.e., the matrix R in the relative backward
error formula above.
AYB
AYB is DOUBLE PRECISION array, dimension (N, NRHS)
The denominator in the relative backward error formula above, i.e.,
the matrix abs(op(A_s))*abs(Y) + abs(B_s). The matrices A, Y, and B
are from iterative refinement (see dla_gerfsx_extended.f).
BERR
BERR is DOUBLE PRECISION array, dimension (NRHS)
The component-wise relative backward error from the formula above.
Author:
Univ. of Tennessee
Univ. of California Berkeley
Univ. of Colorado Denver
NAG Ltd.
Date:
September 2012
Definition at line 102 of file dla_lin_berr.f.
Author
Generated automatically by Doxygen for LAPACK from the source code.
Version 3.4.2 Tue Sep 25 2012 dla_lin_berr.f(3)