Averages/Arithmetic mean: Difference between revisions

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→‎{{header|Ruby}}: use sum method
Update WDTE example for language overhaul.
Line 3,227:
 
=={{header|WDTE}}==
<lang WDTE>'stream'let s => simport 'stream';
let a => import 'arrays';
'arrays' => a;
 
let mean nums =>
a.stream nums
-> s.reduce [0; 0] (@ s p n => [+ (a.at p 0) 1; + (a.at p 1) n])
Line 3,238:
 
Usage:
<lang WDTE>main => mean [1; 2; 3] -- io.writeln io.stdout;</lang>
 
Output:
Retrieved from "https://rosettacode.org/wiki/Averages/Arithmetic_mean"