Averages/Arithmetic mean: Difference between revisions

=={{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>