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.
In the following example, we create a pipeline with a
Then, we get the element with the average value in different ways.
Example 1: Mean of element in a PCollection
Mean.Globally() to get the average of the elements from the entire
Example 2: Mean of elements for each key
Mean.PerKey() to get the average of the elements for each unique key in a
PCollection of key-values.
Last updated on 2021/02/05
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