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RapidMiner

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Sebastian Loh

Change Class Distribution of Your Training Data Set by Filtering and Sampling / Normalize Class Distribution / Stratification (v1)

Created: 21/01/11 @ 14:57:11 | Last updated: 21/01/11 @ 14:57:12

License: Creative Commons Attribution-No Derivative Works 3.0 Unported License

This example process shows how to change the class distribution of your training data set (in this case the training data is what ever comes out of the "myData reader"). The given training set has a distribution of 10 "Iris-setosa" examples, 40 "Iris-versicolor" examples and 50 "Iris-virginica" examples. The aim is to get a data set which has the class distribution for the label, lets say 10 "Iris-setosa", 20 "Iris-versicolor" and 20 "Iris-virginica. Beware that this may change some propert...

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