Deleteing rows without a loop meeting certain criteria - excel

Question

I am working on writing a macro that deletes all rows that are less than .75 from a value I found using a formula. In another thread, on here, I found a loop that works, but this takes a lot of time to run... so I am trying to find a way without a loop. So far, I have the code as seen below, but i get a "run-time error 1004, method 'range of object worksheet' failed" on the line
ws.Range(Left(rowsToDelete, Len(rowsToDelete) - 1)).Select
Anybody have any ideas on a correction? All help is appreciated
Private Sub CommandButton6_Click()
Application.ScreenUpdating = False
Dim ws As Worksheet
Dim i&, lr&, rowsToDelete$, lookFor$, lookFor2$
'*!!!* set the condition for row deletion
lookFor = "#VALUE!"
lookFor2 = "0.75"
Set ws = ThisWorkbook.Sheets("Entry")
lr = ws.Range("H" & Rows.Count).End(xlUp).row
ReDim arr(0)
For i = 1 To lr
If StrComp(CStr(ws.Range("H" & i).Text), lookFor, vbTextCompare) = 0 Or _
CDbl(ws.Range("H" & i).Value) < CDbl(lookFor2) Then
ReDim Preserve arr(UBound(arr) + 1)
arr(UBound(arr) - 1) = i
End If
Next i
If UBound(arr) > 0 Then
ReDim Preserve arr(UBound(arr) - 1)
For i = LBound(arr) To UBound(arr)
rowsToDelete = rowsToDelete & arr(i) & ":" & arr(i) & ","
Next i
ws.Range(Left(rowsToDelete, Len(rowsToDelete) - 1)).Select
Selection.Delete Shift:=xlUp
lr = ws.Range("A" & Rows.Count).End(xlUp).row
ws.Range(lr & ":" & lr).Select
Else
Application.ScreenUpdating = True
MsgBox "No more rows contain: " & lookFor & "or" & lookFor2 & ", therefore exiting"
Exit Sub
End If
If Not Application.ScreenUpdating Then Application.ScreenUpdating = True
Set ws = Nothing
End Sub

Answer 1

Here is one way:
Sub Macro1()
With Application
.ScreenUpdating = False
.Calculation = xlCalculationManual
.EnableEvents = False
End With
Dim r As Range
Set r = Sheet1.UsedRange
r.AutoFilter Field:=8, Criteria1:="<.75", _
Operator:=xlAnd
r.Offset(1).SpecialCells(xlCellTypeVisible).EntireRow.Delete
r.AutoFilter
With Application
.ScreenUpdating = True
.Calculation = xlCalculationAutomatic
.EnableEvents = True
End With
End Sub
This assumes that column H (or 8 in the code above) holds the value you want to filter for. You'll have to adjust to fit your sheet.