162 Commits

Author SHA1 Message Date
Gael Guennebaud
95db4e9841 added SparseSetter doc 2008-08-22 11:19:12 +00:00
Benoit Jacob
a814ebe180 fix a number of compiler errors and warnings with gcc 4.3. There was a missing
#include<algorithm> so I'm not sure how it compiled at all for you :)
2008-08-22 01:19:53 +00:00
Gael Guennebaud
58061f5ffc extend sparse unit test and more bugfix, major todo: finilize the SparseSetter 2008-08-21 18:40:56 +00:00
Gael Guennebaud
60804c306d *patch by Daniel Gomez:
- bugfix in SparseMatrix
 - add a sparse unit test
* renamed Transform::affine => linear
2008-08-21 17:02:47 +00:00
Benoit Jacob
17ec407ccd * 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 02:25:40 +00:00
Gael Guennebaud
b13148c358 renamed inverseProduct => solveTriangular 2008-08-09 20:06:25 +00:00
Gael Guennebaud
e77ccf2928 * Rewrite the triangular solver so that we can take advantage of our efficient matrix-vector products:
=> up to 6 times faster !
* Added DirectAccessBit to Part
* Added an exemple of a cwise operator
* Renamed perpendicular() => someOrthogonal() (geometry module)
* Fix a weired bug in ei_constant_functor: the default copy constructor did not copy
  the imaginary part when the single member of the class is a complex...
2008-07-26 20:40:29 +00:00
Gael Guennebaud
37a50fa526 * added an in-place version of inverseProduct which
might be twice faster fot small fixed size matrix
* added a sparse triangular solver (sparse version
  of inverseProduct)
* various other improvements in the Sparse module
2008-06-29 21:29:12 +00:00
Gael Guennebaud
027818d739 * added innerSize / outerSize functions to MatrixBase
* added complete implementation of sparse matrix product
  (with a little glue in Eigen/Core)
* added an exhaustive bench of sparse products including GMM++ and MTL4
  => Eigen outperforms in all transposed/density configurations !
2008-06-28 23:07:14 +00:00
Gael Guennebaud
e5d301dc96 various work on the Sparse module:
* added some glue to Eigen/Core (SparseBit, ei_eval, Matrix)
* add two new sparse matrix types:
   HashMatrix: based on std::map (for random writes)
   LinkedVectorMatrix: array of linked vectors
   (for outer coherent writes, e.g. to transpose a matrix)
* add a SparseSetter class to easily set/update any kind of matrices, e.g.:
   { SparseSetter<MatrixType,RandomAccessPattern> wrapper(mymatrix);
     for (...) wrapper->coeffRef(rand(),rand()) = rand(); }
* automatic shallow copy for RValue
* and a lot of mess !
plus:
* remove the remaining ArrayBit related stuff
* don't use alloca in product for very large memory allocation
2008-06-26 23:22:26 +00:00
Benoit Jacob
c5bd1703cb change derived classes methods from "private:_method()"
to "public:method()" i.e. reimplementing the generic method()
from MatrixBase.
improves compilation speed by 7%, reduces almost by half the call depth
of trivial functions, making gcc errors and application backtraces
nicer...
2008-06-26 20:08:16 +00:00
Gael Guennebaud
ea1990ef3d add experimental code for sparse matrix:
- uses the common "Compressed Column Storage" scheme
 - supports every unary and binary operators with xpr template
   assuming binaryOp(0,0) == 0 and unaryOp(0) = 0 (otherwise a sparse
   matrix doesnot make sense)
 - this is the first commit, so of course, there are still several shorcommings !
2008-06-23 13:25:22 +00:00