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Reimplement STDEV + STDEV.S #2438

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Merged
merged 1 commit into from
Oct 6, 2024
Merged

Reimplement STDEV + STDEV.S #2438

merged 1 commit into from
Oct 6, 2024

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jahav
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@jahav jahav commented Oct 6, 2024

Faster, use less memory and is more in line with Excel behavior.

BenchmarkDotNet v0.14.0, Windows 11 (10.0.22631.4169/23H2/2023Update/SunValley3)
AMD Ryzen 5 5500U with Radeon Graphics, 1 CPU, 12 logical and 6 physical cores
.NET SDK 9.0.100-preview.7.24407.12
  [Host]     : .NET 8.0.1 (8.0.123.58001), X64 RyuJIT AVX2
  DefaultJob : .NET 8.0.1 (8.0.123.58001), X64 RyuJIT AVX2
Method RowsCount Mean Error StdDev Allocated
StDev 1000 494.2 μs 8.54 μs 7.57 μs 4.4 KB
StDevLegacy 1000 3,535.8 μs 57.38 μs 50.87 μs 4329.38 KB
StDev 10000 4,798.9 μs 56.95 μs 47.56 μs 4.45 KB
StDevLegacy 10000 71,428.2 μs 1,424.47 μs 2,640.34 μs 51121.82 KB
StDev 100000 49,952.7 μs 473.84 μs 395.68 μs 4.6 KB
StDevLegacy 100000 713,217.0 μs 13,764.51 μs 38,597.15 μs 486423.05 KB

https://gist.github.com/jahav/c3eef7b896515cfb39d0965800566742

@jahav jahav added this to the v0.105.0 milestone Oct 6, 2024
@jahav
Reimplement STDEV + STDEV.S
6317bec 
Faster, use less memory and is more in line with Excel behavior.
@jahav jahav merged commit 28028bf into develop Oct 6, 2024
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@jahav jahav deleted the reimplement-min branch October 6, 2024 20:57
@jahav jahav mentioned this pull request Dec 12, 2024
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