Created
September 20, 2016 05:35
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This is an Excel VB macro that allows one to convert an Excel range from a denormalized form (i.e. row and column headers are attributes) into normalized form (fixed number of columns, number of rows expand as attribute count increases)
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Sub normalize() | |
' Takes a matrix with names in rows and columns and turns it into a | |
' normalized version. | |
' Names for rows and columns are expected to be outside the selection | |
' Cell {-1,-1} is an attribute to be repeated in all entries | |
' Spreadsheet name is an attribute to be repeated in all entries | |
' Will modify the row and column structure of the spreadsheet | |
' Will overwrite anyting in the destination area | |
' Will not check if there is enough space on the spreadsheet | |
Dim ss As Range | |
Dim rr As Integer, cc As Integer | |
Dim startRow As Integer, startCol As Integer | |
Set ss = Selection | |
rr = ss.Rows.Count | |
cc = ss.Columns.Count | |
If rr < 2 Then GoTo normalize_done | |
If cc < 2 Then GoTo normalize_done | |
startRow = ss.Row | |
startCol = ss.Column | |
If startRow < 2 Then GoTo normalize_done | |
If startCol < 2 Then GoTo normalize_done | |
' Copy all the data transposed into rows | |
For ci = 2 To cc | |
Application.Intersect(ss, Columns(startCol + ci - 1)).Copy | |
Cells(startRow + rr * (ci - 1), startCol).PasteSpecial xlPasteValues | |
Next ci | |
' Copy the row names in all the transposed rows | |
Range(Cells(startRow, startCol - 1), Cells(startRow + rr - 1, startCol - 1)).Copy | |
Range(Cells(startRow + rr, startCol - 1), Cells(startRow + rr * cc - 1, startCol - 1)).PasteSpecial xlPasteValues | |
Dim v As String | |
v = ActiveSheet.Name | |
' Copy the column names, matrix name and sheet name in each of the rows | |
For ci = 1 To cc | |
Cells(startRow - 1, startCol + ci - 1).Copy | |
Range(Cells(startRow + rr * (ci - 1), startCol + cc), _ | |
Cells(startRow + rr * ci - 1, startCol + cc)).PasteSpecial xlPasteValues | |
Cells(startRow - 1, startCol - 1).Copy | |
Range(Cells(startRow + rr * (ci - 1), startCol + cc + 1), _ | |
Cells(startRow + rr * ci - 1, startCol + cc + 1)).PasteSpecial xlPasteValues | |
Range(Cells(startRow + rr * (ci - 1), startCol + cc + 2), _ | |
Cells(startRow + rr * ci - 1, startCol + cc + 2)).Value = v | |
Next ci | |
' Move the last columns back to be closer to the data and clean up | |
Range(Cells(startRow, startCol + cc), _ | |
Cells(startRow + rr * cc - 1, startCol + cc + 2)).Cut _ | |
Destination:=Range(Cells(startRow, startCol + 1), _ | |
Cells(startRow + rr * cc - 1, startCol + 3)) | |
Range(Cells(startRow - 1, startCol + 4), _ | |
Cells(startRow + rr * cc - 1, startCol + cc + 2)).ClearContents | |
Range(Cells(startRow, startCol - 1), _ | |
Cells(startRow + rr * cc - 1, startCol + 3)).Select | |
Selection.Style = "Normal" | |
Application.CutCopyMode = False | |
normalize_done: | |
End Sub |
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