10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
thank you for letting me join this forum, lots of learning opportunities looks like.
Myself a biologist, very new into unix, so please excuse if I use incorrect language. I am using cygwin on windows, it can run perl, awk , sed etc.
I have 2 files, the first sample sheet, tells which parent... (10 Replies)
Discussion started by: jalaj841
10 Replies
2. Shell Programming and Scripting
Hello ppl
I have a requirement to split (cut in unix) a file (A.txt) which is a pipe delimited file into A1.txt and A2.txt
Now I have to join (paste in unix) this A2.txt with external file A3.txt to form
output file A4.txt which should be CSV (comma separated file) so that third party can... (25 Replies)
Discussion started by: etldev
25 Replies
3. UNIX for Dummies Questions & Answers
I need to form a matrix out of unbalanced set of records. First eliminate the sample that do not have at least 3 variables (col2). So, in the example, samples 4 and 5 get eliminated.
Then form a matrix of values (col3) from the samples using only variables that are present accross all samples.... (3 Replies)
Discussion started by: senhia83
3 Replies
4. Shell Programming and Scripting
Hi All,
I want to display row=2 and column=1 where value=10 with the help of cut command, Please advice me
1 2 3 4
5 6 7 8
9 10 11 12 (2 Replies)
Discussion started by: raghur77
2 Replies
5. Shell Programming and Scripting
HI Guys,
I have data in File A.txt
RL03 RL03_A_1 RL03_B_1 RL03_C_1
RL03 -119.8 -119.5 -119.5
RL07 RL07_A_1 RL07_B_1 RL07_C_1
RL07 -119.3 -119.5 -119.5
RL15 RL15_A_1 RL15_C_1
RL15 -120.5 -119.4
RL16... (2 Replies)
Discussion started by: asavaliya
2 Replies
6. Shell Programming and Scripting
HI Guys,
I have file A:
Abc XyZ Abc Xyz Kal Kaloo
Abc XyZ Abc Xyz Kalpooo
Abc XyZ Abc Xyz Kloo
Abc Abc Klooo
I want file B
Abc XyZ Abc Xyz Kal Kaloo
Abc XyZ Abc Xyz Kalpooo
Abc XyZ Abc Xyz Kloo
File A is now 1 lines
Abc Abc Klooo
Cut all lines which have xyz... (2 Replies)
Discussion started by: asavaliya
2 Replies
7. Shell Programming and Scripting
Hi,
Some assistance with respect to the following problem will be very helpful.
I want to reformat my dataset in the following manner for subsequent analysis.
I have first column values (which repeat for each value of 2nd column) which are names, the second column specifies position ad the... (1 Reply)
Discussion started by: newbie83
1 Replies
8. Ubuntu
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)
Discussion started by: evoll
8 Replies
9. Shell Programming and Scripting
hi,
I have a file with content like this for an employee:
EmployeeID
101
Day_type, day
vacation,1/2/2009
sick day, 3/2/2009
personal day, 4/5/2009
jury duty day, 5/5/2009
how do I make the result to show:
EmployeeID,Day_type,day
101,vacation,1/2/2009
101,sick day,... (6 Replies)
Discussion started by: jbchen
6 Replies
10. UNIX for Dummies Questions & Answers
Hi,
I have a file whose structure is like this
7
7
1 2 3 4 5
1 3 4 8 6
1 4 5 6 0
2 6 8 3 8
2 5 7 8 0
5 7 9 4 1
3 8 0 2 2
3 5 6 8
basically first two row tell the number of rows and column but the data following them are not arranged in that format. now i want to create another... (1 Reply)
Discussion started by: g0600014
1 Replies
ZLATRD(l) ) ZLATRD(l)
NAME
ZLATRD - reduce NB rows and columns of a complex Hermitian matrix A to Hermitian tridiagonal form by a unitary similarity transformation Q'
* A * Q, and returns the matrices V and W which are needed to apply the transformation to the unreduced part of A
SYNOPSIS
SUBROUTINE ZLATRD( UPLO, N, NB, A, LDA, E, TAU, W, LDW )
CHARACTER UPLO
INTEGER LDA, LDW, N, NB
DOUBLE PRECISION E( * )
COMPLEX*16 A( LDA, * ), TAU( * ), W( LDW, * )
PURPOSE
ZLATRD reduces NB rows and columns of a complex Hermitian matrix A to Hermitian tridiagonal form by a unitary similarity transformation Q'
* A * Q, and returns the matrices V and W which are needed to apply the transformation to the unreduced part of A. If UPLO = 'U', ZLATRD
reduces the last NB rows and columns of a matrix, of which the upper triangle is supplied;
if UPLO = 'L', ZLATRD reduces the first NB rows and columns of a matrix, of which the lower triangle is supplied.
This is an auxiliary routine called by ZHETRD.
ARGUMENTS
UPLO (input) CHARACTER
Specifies whether the upper or lower triangular part of the Hermitian matrix A is stored:
= 'U': Upper triangular
= 'L': Lower triangular
N (input) INTEGER
The order of the matrix A.
NB (input) INTEGER
The number of rows and columns to be reduced.
A (input/output) COMPLEX*16 array, dimension (LDA,N)
On entry, the Hermitian matrix A. If UPLO = 'U', the leading n-by-n upper triangular part of A contains the upper triangular part
of the matrix A, and the strictly lower triangular part of A is not referenced. If UPLO = 'L', the leading n-by-n lower triangular
part of A contains the lower triangular part of the matrix A, and the strictly upper triangular part of A is not referenced. On
exit: if UPLO = 'U', the last NB columns have been reduced to tridiagonal form, with the diagonal elements overwriting the diagonal
elements of A; the elements above the diagonal with the array TAU, represent the unitary matrix Q as a product of elementary
reflectors; if UPLO = 'L', the first NB columns have been reduced to tridiagonal form, with the diagonal elements overwriting the
diagonal elements of A; the elements below the diagonal with the array TAU, represent the unitary matrix Q as a product of elemen-
tary reflectors. See Further Details. LDA (input) INTEGER The leading dimension of the array A. LDA >= max(1,N).
E (output) DOUBLE PRECISION array, dimension (N-1)
If UPLO = 'U', E(n-nb:n-1) contains the superdiagonal elements of the last NB columns of the reduced matrix; if UPLO = 'L', E(1:nb)
contains the subdiagonal elements of the first NB columns of the reduced matrix.
TAU (output) COMPLEX*16 array, dimension (N-1)
The scalar factors of the elementary reflectors, stored in TAU(n-nb:n-1) if UPLO = 'U', and in TAU(1:nb) if UPLO = 'L'. See Fur-
ther Details. W (output) COMPLEX*16 array, dimension (LDW,NB) The n-by-nb matrix W required to update the unreduced part of
A.
LDW (input) INTEGER
The leading dimension of the array W. LDW >= max(1,N).
FURTHER DETAILS
If UPLO = 'U', the matrix Q is represented as a product of elementary reflectors
Q = H(n) H(n-1) . . . H(n-nb+1).
Each H(i) has the form
H(i) = I - tau * v * v'
where tau is a complex scalar, and v is a complex vector with v(i:n) = 0 and v(i-1) = 1; v(1:i-1) is stored on exit in A(1:i-1,i), and tau
in TAU(i-1).
If UPLO = 'L', the matrix Q is represented as a product of elementary reflectors
Q = H(1) H(2) . . . H(nb).
Each H(i) has the form
H(i) = I - tau * v * v'
where tau is a complex scalar, and v is a complex vector with v(1:i) = 0 and v(i+1) = 1; v(i+1:n) is stored on exit in A(i+1:n,i), and tau
in TAU(i).
The elements of the vectors v together form the n-by-nb matrix V which is needed, with W, to apply the transformation to the unreduced part
of the matrix, using a Hermitian rank-2k update of the form: A := A - V*W' - W*V'.
The contents of A on exit are illustrated by the following examples with n = 5 and nb = 2:
if UPLO = 'U': if UPLO = 'L':
( a a a v4 v5 ) ( d )
( a a v4 v5 ) ( 1 d )
( a 1 v5 ) ( v1 1 a )
( d 1 ) ( v1 v2 a a )
( d ) ( v1 v2 a a a )
where d denotes a diagonal element of the reduced matrix, a denotes an element of the original matrix that is unchanged, and vi denotes an
element of the vector defining H(i).
LAPACK version 3.0 15 June 2000 ZLATRD(l)