Code optimization required - run all processes in memory before placing result to worksheet

[kelly mort]

I need to get these codes run in memory for the various processes, before placing the result onto the sheet instead on interacting with the sheet for all the events. As my data grows, it seems to be slowing down my codes.

This post was inspired by @DanteAmor solution at:

Load part of data to memory, perform some calculations and rank then show alert with message box -vba

This is the formula I am using to get data to second sheet. Sheet2.Range("D7:M" & lr) = "=Sheet1!I7+Sheet1!S7*0.2" Sheet1 Sheet2 Now what I want to do is to be able to load the portion of data from sheet2 for say category "X" into memory. Now I don't want to interact with the worksheet...

www.mrexcel.com

Any of them that I get solution for, I will really appreciate that. I am working on effective ways to run my scripts faster by using better optimization techniques. Thanks in advance for taking the time, pain and effort to read this.

Script #1

Sub RankIt()
    Dim dicSection As Object, vItem, wsData As Worksheet, vSection
    Dim rScore As Range, rCell As Range, Score, Rnk#, lastrow&, i&
                
    Application.ScreenUpdating = False
    Set wsData = Sheets("DATA")
    If wsData.FilterMode Then wsData.ShowAllData
    lastrow = wsData.Cells(Rows.Count, "C").End(xlUp).Row
    Set dicSection = CreateObject("Scripting.Dictionary")
    dicSection.CompareMode = 1 'vbTextCompare
    vSection = wsData.Range("C7:C" & lastrow)
        
    For i = 1 To UBound(vSection)
        dicSection(vSection(i, 1)) = ""
    Next i

    For Each vItem In dicSection.keys()
        With wsData.Range("C6:N" & lastrow)
            .AutoFilter field:=1, Criteria1:=vItem
                    For i = 1 To 11
                        Set rScore = .Offset(1, i).Resize(.Rows.Count, 1).SpecialCells(xlCellTypeVisible)
                        For Each rCell In rScore
                            Score = rCell.Value
                            If Application.IsNumber(Score) Then
                                Rnk = WorksheetFunction.Rank(CDbl(Score), rScore)
                                rCell.Offset(, 14).Value = Rnk & DefaultGetSuffix(Rnk)
                            End If
                        Next rCell
            .AutoFilter
        End With
    Next vItem
  Application.ScreenUpdating = True
End Sub


Function DefaultGetSuffix(Rnk#) As String
    Dim sSuffix$
    If Rnk Mod 100 >= 11 And Rnk Mod 100 <= 20 Then
        sSuffix = " th"
    Else
        Select Case (Rnk Mod 10)
            Case 1: sSuffix = " st"
            Case 2: sSuffix = " nd"
            Case 3: sSuffix = " rd"
            Case Else: sSuffix = " th"
        End Select
    End If
    DefaultGetSuffix = sSuffix
End Function

Script #2

Sub MySwitch()
    For Each eItem In Range("C7:C" & lr).Cells
        Select Case eItem.Text
            Case 3: eItem = "Y 1"
            Case 4: eItem = "Y 2"
            Case 5: eItem = "X 1"
            Case 6: eItem = "X 2"
            Case 7: eItem = "X 3"
            Case 8: eItem = "X 4"
            Case 9: eItem = "X 5"
            Case 10: eItem = "X 6"
            Case 11: eItem = "Z 1"
            Case 12: eItem = "Z 2"
            Case 13: eItem = "Z 3"
        End Select
    Next eItem
End Sub

Script #3

Sub NumberEachCat()
    Dim r As Range, counter&, currentS$
    
    With Sheets("DATA")
        lr = .Range("C" & Rows.Count).End(xlUp).Row
        If lr < 7 Then lr = 7
        currentS = .[A7].Value: counter = 1
        For Each r In .Range("C7:C" & lr)
           If currentS = r.Value Then
                r.Offset(, -2) = counter
                counter = counter + 1
            Else
                counter = 1
                r.Offset(, -2) = counter
                counter = counter + 1
                currentS = r.Value
            End If
        Next r
    End With
End Sub

 

[DanteAmor]

This line is just placing blanks to column AB.

Change to this:

sh.Range("AB7").Resize(UBound(c, 1)).Value = Application.Index(c, 0, 11)

 

[kelly mort]

Change to this:

sh.Range("AB7").Resize(UBound(c, 1)).Value = Application.Index(c, 0, 11)

All set now.

Have a wonderful time, legend

 

[DanteAmor]

Again with pleasure. Thanks for the feedback