vectorz
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mikera
Fast and flexible numerical library for Java featuring N-dimensional arrays
Identity matrices cause stack overflows when you call `asElementList` as it ping pongs back from the MatrixViewVector implementation and the AMatrix implementation. Unfortunately this means I have to use manually-constructed...
I'm looking to convert numpy code and was wondering where the equilavent functions/method as amin, argsort are... Would be great if you could point me to a Class or where...
In SparseRowMatrix and SparseColumnMatrix, zero is assumed as the sparse value. However, there are many applications were the default value if 1 instead, as in some symmetric distance matrices for...
Added functions for Matrix class that has similar behavior as in Matlab's max/min when applied to matrices: http://www.mathworks.com/help/matlab/ref/max.html
With the new sparse matrix support, we should add support for long-based indexing. This will also help with Clojure interop for vectorz-clj, since Clojure prefers long values rather than ints...
I am trying to solve a sparse linear system with Vectorz, but it seems to lack some basic algorithms to do it efficiently. I want to solve Ku=F, where K...
For many applications (recommender systems, information retrieval, etc.), only the top _k_ singular values (and their corresponding vectors) are required from the singular value decomposition. Would be nice to have...
The following Qr decomposition case appears to fail: ``` [[ 0 , 0 ], [ -1 , 0 ]] ``` with results ``` Q= [[ 0.0, 1.0 ], [ 1.0,...
We should provide backward and forward substitution algorithms for sparse matrices. See: https://github.com/mikera/vectorz/issues/29 for motivation
In some cases we have non-deterministic test cases. We should convert to deterministic tests for all of these (with fixed or deterministically generated test data)