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josep2/apply_harmonic.scala

Created December 19, 2016 16:53
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apply_harmonic.scala
val harmonic = new HarmonicMean
data.agg(harmonic(col("sales")).as("HarmonicMean")).show()
+-----------------+
| GeometricMean|
+-----------------+
|473.3701657458564|
+-----------------+
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