sinkhorn_knopp 0.2

sinkhorn_knopp
--------

[](https://travis-ci.org/btaba/sinkhorn_knopp)


To convert non-negative square matrices with total support into doubly stochastic matrices.

```python
>> import numpy as np
>> from sinkhorn_knopp import sinkhorn_knopp as skp
>> sk = skp.SinkhornKnopp()
>> P = [[.011, .15], [1.71, .1]]
>> P_ds = sk.fit(P)
>> print P_ds
[[ 0.06102561 0.93897439]
[ 0.93809928 0.06190072]]
>> print np.sum(P_ds, axis=0)
[ 0.99912489 1.00087511]
>> print np.sum(P_ds, axis=1)
[ 1., 1.]
```

See http://msp.org/pjm/1967/21-2/pjm-v21-n2-p14-s.pdf for reference.

## Install

Either:

```sh
pip install sinkhorn_knopp
```

or

```sh
git clone https://github.com/btaba/sinkhorn_knopp
cd sinkhorn_knopp
python setup.py install
```

## Uninstall

Depending on the above, either:

```sh
pip uninstall sinkhorn_knopp
```

or

```sh
cd sinkhorn_knopp
python setup.py install --record files.txt
cat files.txt | xargs rm -rf
```