tests/Measure-VectorSimilarity.tests.ps1
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Describe "Measure-VectorSimilarity" { It "Measures single input same" { Measure-PsgVectorSimilarity 1 1 | Should be 1 } It "Measures single input different" { Measure-PsgVectorSimilarity 1 0 | Should be 0 } It "Measures comparison to empty array" { Measure-PsgVectorSimilarity 1,2,3 @() | Should be 0 } It "Measures identical multiple inputs" { Measure-PsgVectorSimilarity @(1..10) @(1..10) | Should be 1 } It "Measures simple numbers" { Measure-PsgVectorSimilarity @(1..10) @(3..8) | Should be 0.775 } It "Measures multi-dimensions" { $set1 = @( ([PSCustomObject] @{ Name = 'A'; Value = 0 }), ([PSCustomObject] @{ Name = 'B'; Value = 1 })) $set2 = @( ([PSCustomObject] @{ Name = 'A'; Value = 0.707 }), ([PSCustomObject] @{ Name = 'B'; Value = 0.707 })) Measure-PsgVectorSimilarity $set1 $set2 -KeyProperty Name -ValueProperty Value | Should be 0.707 } } |