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UNIX for Dummies Questions & Answers
changing data into matrix form
Post 302207137 by g0600014 on Thursday 19th of June 2008 08:17:12 AM
06-19-2008
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Here is what old matrix look like,
IDs X1 X2 Y1 Y2
10914061 -0.364613333 -0.362922333 0.001691 -0.450094667
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1.0
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RL03 RL03_A_1 RL03_B_1 RL03_C_1
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atg 10
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LEARN ABOUT CENTOS
slaqge
slaqge.f(3) LAPACK slaqge.f(3) NAME
slaqge.f - SYNOPSIS
Functions/Subroutines subroutine slaqge (M, N, A, LDA, R, C, ROWCND, COLCND, AMAX, EQUED) SLAQGE scales a general rectangular matrix, using row and column scaling factors computed by sgeequ. Function/Subroutine Documentation subroutine slaqge (integerM, integerN, real, dimension( lda, * )A, integerLDA, real, dimension( * )R, real, dimension( * )C, realROWCND, realCOLCND, realAMAX, characterEQUED) SLAQGE scales a general rectangular matrix, using row and column scaling factors computed by sgeequ. Purpose: SLAQGE equilibrates a general M by N matrix A using the row and column scaling factors in the vectors R and C. Parameters: M M is INTEGER The number of rows of the matrix A. M >= 0. N N is INTEGER The number of columns of the matrix A. N >= 0. A A is REAL array, dimension (LDA,N) On entry, the M by N matrix A. On exit, the equilibrated matrix. See EQUED for the form of the equilibrated matrix. LDA LDA is INTEGER The leading dimension of the array A. LDA >= max(M,1). R R is REAL array, dimension (M) The row scale factors for A. C C is REAL array, dimension (N) The column scale factors for A. ROWCND ROWCND is REAL Ratio of the smallest R(i) to the largest R(i). COLCND COLCND is REAL Ratio of the smallest C(i) to the largest C(i). AMAX AMAX is REAL Absolute value of largest matrix entry. EQUED EQUED is CHARACTER*1 Specifies the form of equilibration that was done. = 'N': No equilibration = 'R': Row equilibration, i.e., A has been premultiplied by diag(R). = 'C': Column equilibration, i.e., A has been postmultiplied by diag(C). = 'B': Both row and column equilibration, i.e., A has been replaced by diag(R) * A * diag(C). Internal Parameters: THRESH is a threshold value used to decide if row or column scaling should be done based on the ratio of the row or column scaling factors. If ROWCND < THRESH, row scaling is done, and if COLCND < THRESH, column scaling is done. LARGE and SMALL are threshold values used to decide if row scaling should be done based on the absolute size of the largest matrix element. If AMAX > LARGE or AMAX < SMALL, row scaling is done. Author: Univ. of Tennessee Univ. of California Berkeley Univ. of Colorado Denver NAG Ltd. Date: September 2012 Definition at line 142 of file slaqge.f. Author Generated automatically by Doxygen for LAPACK from the source code. Version 3.4.2 Tue Sep 25 2012 slaqge.f(3)