Data commit

Task/Entropy/PowerShell/entropy.psh

@@ -0,0 +1,9 @@
+function entropy ($string) {
+    $n = $string.Length
+    $string.ToCharArray() | group | foreach{
+        $p = $_.Count/$n
+        $i = [Math]::Log($p,2)
+        -$p*$i
+    } | measure -Sum | foreach Sum
+}
+entropy "1223334444"