I don't know if I hit the correct site but would be grateful for an answer -
it is a fundamental one. We all know that linear regression can be
accomplished by matrix multiplication and that there are packages which will
do it for you. I am teaching myself C++ and for the purposes of the
excercise I would like to know how to create a matrix or obtain ready made
code (ie "numerical recipe" )class so I could declare in a program:
#include <iostream.h>
#include <math.h>
#include <matrix.h> /* if there is such a file */
matrix<3,3> a, b, c, d,e;
/* steps to load the matrix with numbers*/
....................................
....................................
c = a*b;
d = pow(c,-1); /*inverse a matrix (I know it's not the same approach as
2^2) */
e= trans(d,-1);
cout << d << e << endl; /*overloading the operator to permit output
or to permit
/* and so on. */
Given that the C++ compiler has a vector.h file to do vectors, I wonder if
there is something in the line of a matrix. It's really neat to express
something so abstract and profound as one line. It's like Euler's theorem.
Thank You,
Anthony Pleticos
mailto:[EMAIL PROTECTED]
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