Transforms for computing the arithmetic mean of the elements in a collection, or the mean of the values associated with each key in a collection of key-value pairs.
Mean.globally()returns a transform that then returns a collection whose contents is the mean of the input collection’s elements. If there are no elements in the input collection, it returns 0.
Mean.perKey()returns a transform that returns a collection that contains an output element mapping each distinct key in the input collection to the mean of the values associated with that key in the input collection.
Example 1: get the mean of a
Example 2: calculate the mean of the
Integers associated with each unique key (which is of type
- Max for computing maximum values in a collection
- Min for computing maximum values in a collection
- Combine for combining all values associated with a key to a single result
Last updated on 2020/08/14
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