Averages/Arithmetic mean: Difference between revisions
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m (moved Mean to Average/Arithmetic mean: collecting all averages under a common prefix) |
(PowerShell) |
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enddefine; |
enddefine; |
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</pre> |
</pre> |
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=={{header|PowerShell}}== |
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The hard way by calculating a sum and dividing: |
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<lang powershell>function mean ($x) { |
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if ($x.Count -eq 0) { |
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return 0 |
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} else { |
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$sum = 0 |
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foreach ($i in $x) { |
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$sum += $i |
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} |
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return $sum / $x.Count |
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} |
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}</lang> |
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or, shorter, by using the <code>Measure-Object</code> cmdlet which already knows how to compute an average: |
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<lang powershell>function mean ($x) { |
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if ($x.Count -eq 0) { |
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return 0 |
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} else { |
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return ($x | Measure-Object -Average).Average |
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} |
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}</lang> |
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=={{header|Python}}== |
=={{header|Python}}== |
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