Added heatmap sample code

Author: myamada0321

example/sample_heatmap.py

@@ -0,0 +1,30 @@
+#!/usr/bin.env python
+# coding: utf-8
+
+from __future__ import (absolute_import, division, print_function,
+                        unicode_literals)
+
+from future import standard_library
+
+from pyHSICLasso import HSICLasso
+
+standard_library.install_aliases()
+
+
+def main():
+    hsic_lasso = HSICLasso()
+    hsic_lasso.input("../tests/test_data/matlab_data.mat")
+
+    #max_neighbors=0 means that we only use the HSIC Lasso features to plot heatmap
+    hsic_lasso.regression(5,max_neighbors=0)
+
+    #Compute linkage
+    hsic_lasso.linkage()
+
+    #Run Hierarchical clustering
+    # Features are clustered by using HSIC scores
+    # Samples are clusterd by using Euclid distance
+    hsic_lasso.plot_heatmap()
+
+if __name__ == "__main__":
+    main()