Data update

Task/Huffman-coding/PowerShell/huffman-coding.psh

@@ -1,61 +0,0 @@
-function Get-HuffmanEncodingTable ( $String )
-    {
-    #  Create leaf nodes
-    $ID = 0
-    $Nodes = [char[]]$String |
-        Group-Object |
-        ForEach { $ID++; $_ } |
-        Select  @{ Label = 'Symbol'  ; Expression = { $_.Name  } },
-                @{ Label = 'Count'   ; Expression = { $_.Count } },
-                @{ Label = 'ID'      ; Expression = { $ID      } },
-                @{ Label = 'Parent'  ; Expression = { 0        } },
-                @{ Label = 'Code'    ; Expression = { ''       } }
-
-    #  Grow stems under leafs
-    ForEach ( $Branch in 2..($Nodes.Count) )
-        {
-        #  Get the two nodes with the lowest count
-        $LowNodes = $Nodes | Where Parent -eq 0 | Sort Count | Select -First 2
-
-        #  Create a new stem node
-        $ID++
-        $Nodes += '' |
-            Select  @{ Label = 'Symbol'  ; Expression = { ''       } },
-                    @{ Label = 'Count'   ; Expression = { $LowNodes[0].Count + $LowNodes[1].Count } },
-                    @{ Label = 'ID'      ; Expression = { $ID      } },
-                    @{ Label = 'Parent'  ; Expression = { 0        } },
-                    @{ Label = 'Code'    ; Expression = { ''       } }
-
-        #  Put the two nodes in the new stem node
-        $LowNodes[0].Parent = $ID
-        $LowNodes[1].Parent = $ID
-
-        #  Assign 0 and 1 to the left and right nodes
-        $LowNodes[0].Code = '0'
-        $LowNodes[1].Code = '1'
-        }
-
-    #  Assign coding to nodes
-    ForEach ( $Node in $Nodes[($Nodes.Count-2)..0] )
-        {
-        $Node.Code = ( $Nodes | Where ID -eq $Node.Parent ).Code + $Node.Code
-        }
-
-    $EncodingTable = $Nodes | Where { $_.Symbol } | Select Symbol, Code | Sort Symbol
-    return $EncodingTable
-    }
-
-#  Get table for given string
-$String = "this is an example for huffman encoding"
-$HuffmanEncodingTable = Get-HuffmanEncodingTable $String
-
-#  Display table
-$HuffmanEncodingTable | Format-Table -AutoSize
-
-#  Encode string
-$EncodedString = $String
-ForEach ( $Node in $HuffmanEncodingTable )
-    {
-    $EncodedString = $EncodedString.Replace( $Node.Symbol, $Node.Code )
-    }
-$EncodedString