Question

How to calculate the average of a list in Groovy

Answer 1

def avg = { list -> list == [] ? 0 : list.sum() / list.size() }

def lst = [3.14, 8.0, 2.87, 5.982, 10.0]

println avg(lst)



/*
run:
  
5.9984
  
*/

 

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Answer 2

def avg(list) { list.sum() / list.size() }

def lst = [3.14, 8.0, 2.87, 5.982, 10.0]

println avg(lst)



/*
run:
  
5.9984
  
*/

 

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