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Averages/Arithmetic mean: Difference between revisions
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<lang bash>(echo 3; echo 1; echo 4) | mean</lang>
=={{header|Ursala}}==
There is a library function for means already, although it doesn't cope with
empty vectors. A mean function could be defined as shown for this task.
<lang Ursala>#import nat
#import flo
mean = ~&?\0.! div^/plus:-0. float+ length
#cast %e
example = mean <5.,3.,-2.,6.,-4.></lang>
output:
<pre>1.600000e+00</pre>
=={{header|V}}==
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