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Top Forums Shell Programming and Scripting awk? adjacency matrix to adjacency list / correlation matrix to list Post 302560848 by stonemonkey on Saturday 1st of October 2011 07:11:32 PM
Old 10-01-2011
awk? adjacency matrix to adjacency list / correlation matrix to list

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 annotation) && the header of the field (column annotation) and some spaces etc. preceding it.
In more abstract terms, I wish to convert an adjacency matrix into adjacency list, which includes the edge weights. In excel it works fine with =IF(B2>0;$A2&" (gg) "&B$1&" = "&B2;"") and some grep but the datasets became just to big. P.S 0 values should be omitted.
Input
 AAABAC...ZZ
AA100.500.7
AB010.300
AC00100.1
...00010
ZZ00001

Output
AA (gg) AA = 1
AA (gg) AC = 0.5
AA (gg) ZZ = 0.7
AB (gg) AB = 1
AB (gg) AC = 0.3
AC (gg) AC = 1
AC (gg) ZZ = 0.1
... (gg) ... = 1
ZZ (gg) ZZ = 1


Thanks a million for your efforts☺.
 

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GLLOADMATRIX(3G)														  GLLOADMATRIX(3G)

NAME
glLoadMatrixd, glLoadMatrixf - replace the current matrix with the specified matrix C SPECIFICATION
void glLoadMatrixd( const GLdouble *m ) void glLoadMatrixf( const GLfloat *m ) PARAMETERS
m Specifies a pointer to 16 consecutive values, which are used as the elements of a 4x4 column-major matrix. DESCRIPTION
glLoadMatrix replaces the current matrix with the one whose elements are specified by m. The current matrix is the projection matrix, mod- elview matrix, or texture matrix, depending on the current matrix mode (see glMatrixMode). The current matrix, M, defines a transformation of coordinates. For instance, assume M refers to the modelview matrix. If v=(v[0],v[1],v[2],v[3]) is the set of object coordinates of a vertex, and m points to an array of 16 single- or double-precision floating- point values m[0],m[1],...,m[15], then the modelview transformation M(v) does the following: m[0] m[4] m[8] m[12] v[0] M(v)=(m[1] m[5] m[9] m[13])x(v[1]) m[2] m[6] m[10] m[14] v[2] m[3] m[7] m[11] m[15] v[3] Where ``x'' denotes matrix multiplication. Projection and texture transformations are similarly defined. NOTES
While the elements of the matrix may be specified with single or double precision, the GL implementation may store or operate on these val- ues in less than single precision. ERRORS
GL_INVALID_OPERATION is generated if glLoadMatrix is executed between the execution of glBegin and the corresponding execution of glEnd. ASSOCIATED GETS
glGet with argument GL_MATRIX_MODE glGet with argument GL_COLOR_MATRIX glGet with argument GL_MODELVIEW_MATRIX glGet with argument GL_PROJECTION_MATRIX glGet with argument GL_TEXTURE_MATRIX SEE ALSO
glLoadIdentity(3G), glMatrixMode(3G), glMultMatrix(3G), glPushMatrix(3G) GLLOADMATRIX(3G)
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