Welch's t-test: Difference between revisions
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SqrtNegInf (talk | contribs) m (→Using Math::AnyNum: future-proof for 5.36, explicit :prototype) |
m (→{{header|Wren}}: Minor tidy) |
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{{libheader|Wren-math}} |
{{libheader|Wren-math}} |
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{{libheader|Wren-fmt}} |
{{libheader|Wren-fmt}} |
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<syntaxhighlight lang=" |
<syntaxhighlight lang="wren">import "./math" for Math, Nums |
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import "/fmt" for Fmt |
import "./fmt" for Fmt |
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var welch = Fn.new { |a, b| |
var welch = Fn.new { |a, b| |
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var g3 = Math.gamma(nu/2 + 0.5).log |
var g3 = Math.gamma(nu/2 + 0.5).log |
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var f = Fn.new { |r| r.pow(nu/2-1) / (1 - r).sqrt } |
var f = Fn.new { |r| r.pow(nu/2-1) / (1 - r).sqrt } |
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return simpson0.call(2000, nu/(t*t + nu), f) / |
return simpson0.call(2000, nu/(t*t + nu), f) / (g1 + g2 - g3).exp |
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} |
} |
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