adding all files done so far

bayes-learning/snippets.txt

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+from sklearn.cross_validation import train_test_split
+x_train, x_test, y_train, y_test = train_test_split(x, y , train_size = 0.7, random_state =  90)
+
+normalizing methods : https://docs.microsoft.com/en-us/azure/machine-learning/studio-module-reference/normalize-data
+                        https://en.wikipedia.org/wiki/Feature_scaling
+                        we apply the normalizing methods to the training data first, then seperately to the test data to compare!