Cumulative standard deviation: Difference between revisions
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No attempt to handle different types -- standard deviation is intrinsically a real number.
<syntaxhighlight lang="cpp">
#include <
#include <cmath>
#include <vector>
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1.3997084244475297
2.0</syntaxhighlight>
=={{header|EasyLang}}==
{{trans|Pascal}}
<syntaxhighlight lang="easylang">
global sum sum2 n .
proc sd x . r .
sum += x
sum2 += x * x
n += 1
r = sqrt (sum2 / n - sum * sum / n / n)
.
v[] = [ 2 4 4 4 5 5 7 9 ]
for v in v[]
sd v r
print v & " " & r
.
</syntaxhighlight>
=={{header|Elixir}}==
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{{libheader|Wren-fmt}}
{{libheader|Wren-math}}
<syntaxhighlight lang="
import "./math" for Nums
var cumStdDev = Fiber.new { |a|
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var sd = cumStdDev.call(a)
if (cumStdDev.isDone) return
}</syntaxhighlight>
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