confumatrix 0.1

Confusion matrix tool for binary classification.

Confusion matrix tool.

Further information:

• http://en.wikipedia.org/wiki/Binary_classification

• http://en.wikipedia.org/wiki/Sensitivity_and_specificity

Instalation

From source code:

python setup.py install

From pypi:

pip intall confumatrix

Usage

>>> from confumatrix import ConfuMatrix
>>> cm = ConfuMatrix(a=10, b=1, c=10, d=3)
>>> cm.accuracy()
0.5416666666666666
>>> cm.precision()
0.9090909090909091
>>> cm.recall()
0.5
>>> cm.specificity()
0.75
>>> cm.sensitivity()
0.5
>>> cm.f1()
0.6451612903225806
>>> print cm
=========================
Confusion Matrix:

    10  1
    10  3

Accuracy: 0.541666666667
Recall: 0.5
Precision: 0.909090909091
Specificity: 0.75
F-measure: 0.645161290323
=========================

binary_classification.py

Load a yaml file with results of a binary classfication and prints Confusion matrix for that results.

Input file format:

# Languages that can be detected
types: [en, es, pt, it, de]
umbral: 0.5
sample:
  - result:
      en: 0.1
      es: 0.2
      pt: 0.3
      it: 0.6666  #hit! ( 0.6666 > 0.5 )
      de: 0.3
    expected: de
  - result:
      en: 0.2
      es: 0.99 # hit
      pt: 0.98 # hit
      it: 0.4
      de: 0.3
    expected: es