Jaccard index: Difference between revisions

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@@ Line 133: / Line 133: @@
 var e = Set.new([2, 3, 5, 7])
 var f = Set.new([8])
-var sets = [a, b, c, d, e, f]
+var isets = Indexed.new([a, b, c, d, e, f])
+for (se in isets) {
+    var i = String.fromByte(se.index + 65)
-for (se in Indexed.new(sets)) {
-    var i = se.index
+    var v = se.value
+    v = v.toList.sort() // force original sorted order
-    var s = se.value
+    Fmt.print("$s = $n", i, v)
-    s = s.toList.sort() // force original sorted order
-    Fmt.print("$s = $n", String.fromByte(65 + i), s)
 }
-var pairs = [
-    [a, a], [a, b], [a, c], [a, d], [a, e], [a, f], [b, b], [b, c], [b, d], [b, e], [b, f],
-    [c, c], [c, d], [c, e], [c, f], [d, d], [d, e], [d, f], [e, e], [e, f], [f, f]
-]
-var names = [
-    "AA", "AB", "AC", "AD", "AE", "AF", "BB", "BC", "BD", "BE", "BF",
-    "CC", "CD", "CE", "CF", "DD", "DE", "DF", "EE", "EF", "FF"
-]
 System.print()
-for (se in Indexed.new(pairs)) {
+for (se1 in isets) {
-    var n = names[se.index]
+    var i1 = String.fromByte(se1.index + 65)
-    var ss = se.value
+    var v1 = se1.value
+    for (se2 in isets) {
-    Fmt.print("J($s, $s) = $h", n[0], n[1], jacardIndex.call(ss[0], ss[1]))
+        var i2 = String.fromByte(se2.index + 65)
+        var v2 = se2.value
+        Fmt.print("J($s, $s) = $h", i1, i2, jacardIndex.call(v1, v2))
+    }
 }</lang>
@@ Line 174: / Line 166: @@
 J(A, E) = 0
 J(A, F) = 0
+J(B, A) = 0
 J(B, B) = 1
 J(B, C) = 0.428571
@@ Line 179: / Line 172: @@
 J(B, E) = 0.5
 J(B, F) = 0
+J(C, A) = 0
+J(C, B) = 0.428571
 J(C, C) = 1
 J(C, D) = 0
 J(C, E) = 0.5
 J(C, F) = 0
+J(D, A) = 0
+J(D, B) = 0.25
+J(D, C) = 0
 J(D, D) = 1
 J(D, E) = 0.125
 J(D, F) = 0.2
+J(E, A) = 0
+J(E, B) = 0.5
+J(E, C) = 0.5
+J(E, D) = 0.125
 J(E, E) = 1
 J(E, F) = 0
+J(F, A) = 0
+J(F, B) = 0
+J(F, C) = 0
+J(F, D) = 0.2
+J(F, E) = 0
 J(F, F) = 1
 </pre>