Add some matrix method(like addition, subtraction, norm ... etc) to
DistributedRowMatrix
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Key: MAHOUT-880
URL: https://issues.apache.org/jira/browse/MAHOUT-880
Project: Mahout
Issue Type: New Feature
Components: Math
Affects Versions: 0.6
Reporter: Wangda Tan
Priority: Minor
I'm a new to Mahout, I didn't find some basic matrix functions. This make users
cannot do many tasks by CLI or API, if user get some result through existing
map-reduce matrix operation (like svd), he cannot do farther steps. I make a
list for it:
1) Addition, Subtraction
2) Norm (like norm-1, norm-2, norm-frobenius)
3) Matrix compare
4) Get lower triangle, upper triangle and diagonal
5) Get identity and zero matrix
6) Put two or matrix to together: A = [A1, A2]
7) More linear equations solver method, like Gaussian elimination (maybe it's
hard to implement)
8) import and export CSV, ARFF ... (this will very useful when user want to
reuse result from or to other applications like MATLAB)
I want to know is there any plan to do this, if so, I can make some efforts to
implement these.
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