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hi
i am new in rapidminer and i want to calculate entropy and standard deviation of one feature for each record of example set... i cant find this operator.... how i can do it????
hello @ramzanzadeh72 - welcome to the community. I'm confused with your question. How do you calculate the standard deviation of only one number? If you want to calculate the standard deviation of an entire column/feature, you can do this easily with the Aggregate operator.
Scott
yes, actually i want to calculate entropy and standard deviation of one feature for entire records... standard devation can be calculate by "aggregate operator" but what about entropy???
hmm I have never heard this request before. IFAIK the only way to do this would be to compute the formula with a Generate Macro operator.
@ramzanzadeh72 I assume you are referring to Information theory. So there's a few ways to do it. There's an operator called Discretize by Entropy and there is are some weighting operators using Information Gain.
Also check out this thread: https://community.rapidminer.com/t5/RapidMiner-Studio-Forum/Information-gain-calculation/td-p/14572
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