ArrayTools is a Project that allows easy data manipulation when working with Arrays and Collections in VBA (regardless of host Application). Operations like sorting, filtering, converting, reversing, slicing are trivial using the LibArrayTools module. Additionaly, a User-Defined-Function (UDF) module is available for Microsoft Excel.
Just import the following code modules in your VBA Project:
- LibArrayTools.bas
- UDF_DataManipulation.bas (optional - works in MS Excel interface only, with exposed User Defined Functions)
Import the folowing code modules:
- TestLibArrayTools.bas
- frmTestResults.frm
and execute method:
TestLibArrayTools.RunAllTestsHere are a couple of demo method calls. Find more in the available Demo.bas module
Array-Array conversions, Array-Collection conversions (and viceversa). Note that methods like 'NDArrayTo1DArray' support arrays up to 60 dimensions.
Public Sub DemoConversions()
Dim coll As Collection
'
'Create a Collection from values
Set coll = Collection(1, 2, 3, 4, 5)
'Result:
' [1,2,3,4,5]
'
Dim arr() As Variant
'
'Convert a Collection to a 1D Array
arr = CollectionTo1DArray(coll)
'Result:
' [1,2,3,4,5,6]
'
'Convert a Collection to a 2D Array
arr = CollectionTo2DArray(coll, 3)
'Result:
' [1,2,3]
' [4,5,6]
'
'Convert 1D Array to a 2D Array
arr = OneDArrayTo2DArray(Array(5, 2, 1, 3, 6, 1, 9, 5), 2)
'Result:
' [5,2]
' [1,3]
' [6,1]
' [9,5]
'
arr = OneDArrayTo2DArray(Array(1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12), 4)
Dim arr2() As Variant
'
'Convert 2D Array to 1D Array
arr2 = NDArrayTo1DArray(arr, rowWise)
'Result:
' [1,2,3,4,5,6,7,8,9,10,11,12]
arr2 = NDArrayTo1DArray(arr, columnWise)
'Result:
' [1,5,9,2,6,10,3,7,11,4,8,12]
'
'Convert 2D Array to nested Collections
Set coll = NDArrayToCollections(arr)
'Result:
' [[1,2,3,4],[5,6,7,8],[9,10,11,12]]
'
'Merge two 1D arrays
arr = Merge1DArrays(Array(1, 2, 3), Array(4, 5))
'Result:
' [1,2,3,4,5]
'
Dim arr1() As Variant
arr1 = OneDArrayTo2DArray(Array(1, 2, 3, 4), 2)
arr2 = OneDArrayTo2DArray(Array(5, 6, 7, 8), 2)
'Merge two 2D arrays
arr = Merge2DArrays(arr1, arr2, False)
'Result:
' [1,2,5,6]
' [3,4,7,8]
arr = Merge2DArrays(arr1, arr2, True)
'Result:
' [1,2]
' [3,4]
' [5,6]
' [7,8]
'
'Transpose a 2D Array
arr = TransposeArray(arr1)
'Result:
' [1,3]
' [2,4]
End SubArray and Collection advanced Filtering
Public Sub DemoFiltering()
Dim arr() As Variant
Dim coll As Collection
Dim filters() As FILTER_PAIR
Dim boolExpression As Boolean
'
'Check if a value is passing a filter
boolExpression = IsValuePassingFilter(5, CreateFilter(opBigger, 3)) 'True
boolExpression = IsValuePassingFilter(5, CreateFilter(opBigger, 7)) 'False
boolExpression = IsValuePassingFilter(5, CreateFilter(opin, Array(1, 3, 5))) 'True
boolExpression = IsValuePassingFilter("test", CreateFilter(opLike, "?es?")) 'True
boolExpression = IsValuePassingFilter("c", CreateFilter(opLike, "[a-d]")) 'True
'
'Create array of filters
filters = CreateFiltersArray(">", 1, "<=", 5, "NOT IN", Array(3, 4))
'
'Filter a 1D Array
arr = Filter1DArray(Array(1, 2, 3, 4, 5), filters)
'Result:
' [2,5]
'
arr = OneDArrayTo2DArray(Array(5, 2, 1, 3, 6, 1, 9, 5), 2)
filters = CreateFiltersArray("IN", Array(1, 3, 5, 7, 9))
'
'Filter a 2D Array
arr = Filter2DArray(arr, 0, filters)
'Result:
' [5,2]
' [1,3]
' [9,5]
arr = Filter2DArray(arr, 1, filters)
'Result:
' [1,3]
' [9,5]
'
'Filter a Collection
Set coll = FilterCollection(Collection("A", "B", "C", "D", "E") _
, CreateFiltersArray("LIKE", "[B-E]", "NOT LIKE", "[C-D]"))
'Result:
' ["B","E"]
End SubInformation functions related to Arrays/Collections
Public Sub DemoGetInformation()
Dim coll As New Collection
Dim boolExpression As Boolean
'
coll.Add 6, "Key1"
'
'Check if a Collection has a key
boolExpression = CollectionHasKey(coll, "Key1") 'True
boolExpression = CollectionHasKey(coll, "Key2") 'False
'
Dim arr() As Variant
Dim arr2D(0 To 2, 0 To 3) As Variant
Dim arr3D(1 To 3, 1 To 2, 1 To 5) As Variant
Dim arr4D(1 To 2, 1 To 3, 1 To 4, 1 To 5) As Variant
Dim dimensionsCount As Long
Dim elementsCount As Long
'
'Get the number of dimensions for an array
dimensionsCount = GetArrayDimsCount(7) '0
dimensionsCount = GetArrayDimsCount(arr) '0
dimensionsCount = GetArrayDimsCount(Array()) '1
dimensionsCount = GetArrayDimsCount(arr2D) '2
dimensionsCount = GetArrayDimsCount(arr3D) '3
dimensionsCount = GetArrayDimsCount(arr4D) '4
'
'Get the number of elements for an array
elementsCount = GetArrayElemCount(5) '0
elementsCount = GetArrayElemCount(arr) '0
elementsCount = GetArrayElemCount(Array(1, 5, 6)) '3
elementsCount = GetArrayElemCount(arr2D) '12
elementsCount = GetArrayElemCount(arr3D) '30
elementsCount = GetArrayElemCount(arr4D) '120
'
'Check if a variant support For...Each loop
boolExpression = IsIterable(arr) 'False
boolExpression = IsIterable(Array()) 'True
boolExpression = IsIterable(coll) 'True
boolExpression = IsIterable(Nothing) 'False
End Sub- Argument Descriptions in the Function Help for the Excel Function Arguments Dialog (fx on the formula bar or Shift + F3) are available by running:
UDF_DataManipulation.RegisterDMFunctions- Download the available Demo Workbook. Each UDF is presented with examples in a separate worksheet.
MIT License
Copyright (c) 2012 Ion Cristian Buse
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.