moved FEAST Libraries

1 files changed, 71 insertions, 0 deletions

diff --git a/FEAST/MIToolbox/Entropy.h b/FEAST/MIToolbox/Entropy.h
new file mode 100644
index 0000000..4bdd697
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+++ b/FEAST/MIToolbox/Entropy.h
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+/*******************************************************************************
+** Entropy.h
+** Part of the mutual information toolbox
+**
+** Contains functions to calculate the entropy of a single variable H(X), 
+** the joint entropy of two variables H(X,Y), and the conditional entropy
+** H(X|Y)
+** 
+** Author: Adam Pocock
+** Created 19/2/2010
+**
+**  Copyright 2010 Adam Pocock, The University Of Manchester
+**  www.cs.manchester.ac.uk
+**
+**  This file is part of MIToolbox.
+**
+**  MIToolbox is free software: you can redistribute it and/or modify
+**  it under the terms of the GNU Lesser General Public License as published by
+**  the Free Software Foundation, either version 3 of the License, or
+**  (at your option) any later version.
+**
+**  MIToolbox is distributed in the hope that it will be useful,
+**  but WITHOUT ANY WARRANTY; without even the implied warranty of
+**  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+**  GNU Lesser General Public License for more details.
+**
+**  You should have received a copy of the GNU Lesser General Public License
+**  along with MIToolbox.  If not, see <http://www.gnu.org/licenses/>.
+**
+*******************************************************************************/
+
+#ifndef __Entropy_H
+#define __Entropy_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif 
+
+/*******************************************************************************
+** calculateEntropy returns the entropy in log base 2 of dataVector
+** H(X)
+**
+** length(dataVector) == vectorLength otherwise there
+** will be a segmentation fault
+*******************************************************************************/
+double calculateEntropy(double *dataVector, int vectorLength);
+
+/*******************************************************************************
+** calculateJointEntropy returns the entropy in log base 2 of the joint 
+** variable of firstVector and secondVector H(XY)
+**
+** length(firstVector) == length(secondVector) == vectorLength otherwise there
+** will be a segmentation fault
+*******************************************************************************/
+double calculateJointEntropy(double *firstVector, double *secondVector, int vectorLength);
+
+/*******************************************************************************
+** calculateConditionalEntropy returns the entropy in log base 2 of dataVector
+** conditioned on conditionVector, H(X|Y)
+**
+** length(dataVector) == length(conditionVector) == vectorLength otherwise there
+** will be a segmentation fault
+*******************************************************************************/
+double calculateConditionalEntropy(double *dataVector, double *conditionVector, int vectorLength);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
+