Centroid of a set of N-dimensional points: Difference between revisions
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(→{{header|Wren}}: Added alternative version.) |
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[[0, 0, 0, 0, 1], [0, 0, 0, 1, 0], [0, 0, 1, 0, 0], [0, 1, 0, 0, 0]] => Centroid: [0, 0.25, 0.25, 0.25, 0.25] |
[[0, 0, 0, 0, 1], [0, 0, 0, 1, 0], [0, 0, 1, 0, 0], [0, 1, 0, 0, 0]] => Centroid: [0, 0.25, 0.25, 0.25, 0.25] |
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</pre> |
</pre> |
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{{libheader|Wren-seq}} |
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{{libheader|Wren-math}} |
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Or, more concise using library methods - output identical. |
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<syntaxhighlight lang="ecmascript">import "./seq" for Lst |
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import "./math" for Nums |
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var centroid = Fn.new { |pts| |
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return Lst.columns(pts).map { |c| Nums.mean(c) }.toList |
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} |
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var points = [ |
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[ [1], [2], [3] ], |
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[ [8, 2], [0, 0] ], |
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[ [5, 5, 0], [10, 10, 0] ], |
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[ [1, 3.1, 6.5], [-2, -5, 3.4], [-7, -4, 9], [2, 0, 3] ], |
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[ [0, 0, 0, 0, 1], [0, 0, 0, 1, 0], [0, 0, 1, 0, 0], [0, 1, 0, 0, 0] ] |
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] |
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for (pts in points) { |
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System.print("%(pts) => Centroid: %(centroid.call(pts))") |
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}</syntaxhighlight> |
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[[File:wren-centroid.png|center|thumb]] |
[[File:wren-centroid.png|center|thumb]] |
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