scala-spark-4's People
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week 3 Shuffling: What it is and why it's important
Example dataset for the above problem:
val purchases = List( CFFPurchase(100, "Geneva", 22.25),
CFFPurchase(100, "Zurich", 42.10),
CFFPurchase(100, "Fribourg", 12.40),
CFFPurchase(100, "St.Gallen", 8.20),
CFFPurchase(100, "Lucerne", 31.60),
CFFPurchase(100, "Basel", 16.20) )
these customerId can not match the figure below
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