eigen/Eigen/Regression

#ifdef __GNUC__
#warning "The Eigen/Regression header file has been renamed to Eigen/LeastSquares. The old name is deprecated, please update your code."
#endif

#include "LeastSquares"
rename Regression --> LeastSquares 2009-01-04 23:55:54 +08:00			`#ifdef __GNUC__`
			`#warning "The Eigen/Regression header file has been renamed to Eigen/LeastSquares. The old name is deprecated, please update your code."`
			`#endif`
* add Regression module, from eigen1, improved, with doc and unit-test. * fix .normalized() so that Random().normalized() works; since the return type became complicated to write down i just let it return an actual vector, perhaps not optimal. * add Sparse/CMakeLists.txt. I suppose that it was intentional that it didn't have CMakeLists, but in <=2.0 releases I'll just manually remove Sparse. 2008-08-11 10:25:40 +08:00
rename Regression --> LeastSquares 2009-01-04 23:55:54 +08:00			`#include "LeastSquares"`