Problem with WorksheetFunction.Norm_S_Inv() - vba

I am trying to make a modelisation of Monte-Carlo for 5000 trials.
I seem to have a weird problem with
g = WorksheetFunction.Norm_S_Inv(Rnd())
During the functioning of the loop (of the 5000 trials), at first it is working but then an error message occurs:
Run-time error "1004":
Method 'Norm_S_Inv' of object 'WorksheetFunction' failed
I have checked on many VBA sites and I don't seem to find a solution.
I also tested with
Application.WorksheetFunction.Norm_S_Inv(Rnd())
with WorksheetFunction.Norm_S_Inv(Rnd())
with WorksheetFunction.Norm.S.Inv
with Application.WorksheetFunction.Norm.S.Inv(Rnd())
with WorksheetFunction.NormSInv
Thank you in advance,

It happens when your Rnd() returns a value of 0 or 1, which is of course an acceptable value for the Rnd() function but it is not as an input of the Norm_S_Inv().
I can reproduce that easily on my computer (my Excel is in Italian, actually I get the 1004 code but the text on my side rather says "Cannot find property Norm_S_Inv for the class WorksheetFunction):
g = WorksheetFunction.Norm_S_Inv(0.14)
Debug.Print g
>>> -1.08031934081496
g = WorksheetFunction.Norm_S_Inv(0) 'or g = WorksheetFunction.Norm_S_Inv(1)
>>>
In order to avoid that, make sure you don't get 0 or 1 as inputs of your function:
myRand = Rnd()
Do Until (myRand <> 0 And myRand <> 1)
myRand = Rnd()
Loop
g = WorksheetFunction.Norm_S_Inv(myRand)
Personal note: this seems a pretty bad error handling done for this function, the error message is not at all clear and I understand your frustration in finding the root cause.

Related

Error HRESULT E_FAIL when iterating through for loop only

I'm seeing the good old "System.Runtime.InteropServices.COMException HResult=0x80004005 Message=Error HRESULT E_FAIL has been returned from a call to a COM component" error when attempting to find an item via a for loop as shown below:
For i = 1 to itemList.Count
oObject = itemList.Item(i)
Next
But not if I hardcode the index, this finds item 1 without issue:
oObject = itemList.Item(1)
Obviously I don't want to do that and need to search through all the objects in my "itemList" to find the one I'm looking for.
I'm being intentionally vague because the software I'm working in is Dassault 3D Experience but am writing macros for it through Visual Studio 2017. I'm not sure where to even start debugging this sort of issue so any suggestions would be appreciated. Thanks.
Edit: adding full code of what I'm trying to do here (find an object, display its name, also select it on screen to double check. I will later add a check to make sure the object found in each loop is really what I'm looking for). All variables have been declared before this section.
selactive = CATIA.ActiveEditor.Selection
selactive.Clear()
product1Service = CATIA.ActiveEditor.GetService("PLMProductService")
oRootOcc = product1Service.RootOccurrence
cVPMOccurrences = oRootOcc.Occurrences
For i = 1 to cVPMOccurrences.Count
oVPMOccurrence = cVPMOccurrences.Item(i)
selactive.Add(oVPMOccurrence)
MsgBox(oVPMOccurrence.Name)
Next
The line that fails is oVPMOccurrence = cVPMOccurrences.Item(i)
Can you do something like this with a For Each loop?
For each oVPMOccurrence as oRootOcc.Occurrence in cVPMOccurrences.Items
selactive.Add(oVPMOccurrence)
MsgBox(oVPMOccurrence.Name)
Next
Using a For Each means you don't have to worry at all about the index
Not sure what the type of oVPMOccurrence is as you haven't specified
Most indexes in .net are zero base. I don't know what itemList is but I suspect the index of the first item is 0.
For i = 0 to itemList.Count - 1
oObject = itemList.Item(i)
Next
Not sure why you want to overwrite the value of oObject on every iteration.

VBA Excel Break Points and Stop do not work

Any idea why inserting break points and stop no longer stops my vba code from running?
The code runs ok all the way to the end (I tested it) but ignores break points and Stop.
Also step into just makes the code run in it's entirety, ignoring break points and stops.
When I close the workbook where the issue seems to originate from the same issue occurs in other macro workbooks.
if I completely close excel and re-open it with a normally working macro workbook the issue doesn't occur until I re-open the problem work book.
I added breakpoints on:
TotP1 = 0
of the following code:
Option Explicit
Private Country As String
Private Measure As String
Private P1 As String
Private P2 As String
Private TotP1 As Double
Private TotP2 As Double
Sub VennDisplayIt()
Dim SI() As String
Dim SICount As Integer
Dim x As Integer
Dim OSh As Worksheet
Dim BrandListBox As Object
Dim VennGroup As Shape
TotP1 = 0
TotP2 = 0
Set OSh = ThisWorkbook.Sheets("Venn")
Set BrandListBox = OSh.OLEObjects("BrandListBox").Object
ReDim SI(2, 0)
For x = 0 To BrandListBox.ListCount - 1
If BrandListBox.Selected(x) = True Then
'If UBound(SI) < 4 Then
ReDim Preserve SI(2, UBound(SI, 2) + 1)
SI(1, UBound(SI, 2)) = BrandListBox.List(x)
SI(2, UBound(SI, 2)) = x + 1
'End If
End If
Next x
If UBound(SI, 2) < 2 Then
BrandListBox.Selected(BrandListBox.ListIndex) = True
Exit Sub
ElseIf UBound(SI, 2) > 4 Then
BrandListBox.Selected(BrandListBox.ListIndex) = False
Exit Sub
End If
For x = 1 To UBound(SI, 2)
OSh.Range("o8").Offset(x, 0).Value = SI(1, x)
OSh.Range("o8").Offset(x + 5, 0).Value = SI(1, x)
Next x
For x = UBound(SI, 2) + 1 To 4
OSh.Range("o8").Offset(x, 0).Value = ""
OSh.Range("o8").Offset(x + 5, 0).Value = ""
Next x
SICount = UBound(SI, 2)
For x = 1 To OSh.Shapes.Count
If Right(OSh.Shapes(x).Name, 5) = "Group" Then
If LCase(OSh.Shapes(x).Name) = SICount & "waygroup" Then
Set VennGroup = OSh.Shapes(x)
OSh.Shapes(x).Visible = True
Else
OSh.Shapes(x).Visible = False
End If
End If
Next x
For x = 1 To SICount
VennGroup.GroupItems.Item(SICount & "WayBrand" & x).DrawingObject.Text = SI(1, x)
Next x
Country = ThisWorkbook.Sheets("Venn").Range("D4").Value
Measure = ThisWorkbook.Sheets("Venn").Range("E32").Value
P2 = ThisWorkbook.Sheets("Venn").Range("E31").Value
P1 = ThisWorkbook.Sheets("Selections").Range("B5").Value
End Sub
I've never heard of Stop not working, but I've heard about and experienced the breakpoint thing many times. When you compile VBA, it creates a p-code, which is used by the interpreter. You have the VBA syntax layer that you can see and the p-code layer that you can't see. When breakpoints stop working, it's because the p-code was corrupted. I don't know how or why it happened, but it did.
The fix is to export, remove, and reimport all of your modules. Exporting them creates a .bas file (plain text, really). When you re-import, the p-code is regenerated from scratch. If you have more than a couple of modules, get CodeCleaner (free add-in) and it will export and reimport automatically.
If one of the settings is unchecked then breakpoints will not work. "File/options/Current database/Application options/use access special keys" should be checked
Just to 'second' Tibo's comment: I had a problem where I had a form with about 5 different subroutines. One of them (attached to a button event) would not stop when I set a breakpoint. in 10 years of VBA writing, I've never seen that happen. Interestingly, breakpoints worked on all of the other subroutines in that form. After much head-scratching and searching, I came upon this post and Tibo's comment. I added a "Stop" command to the affected subroutine, ran the procedure (it stopped as it should have) and then breakpoints began working again! Hope this helps someone in the future.
If the breakpoints are in your code, then the code should stop running as soon as it hits that line. Possible causes of your problem:
a) The code never gets to the Breakpoint.
Seems highly unlikely seeing as you're breaking on the first line of your code. Maybe step through the sub (F8) just to check it's running as it should.
b) Your breakpoints have been wiped. Any line with a breakpoint should display as highlighted in red on your IDE. Your breakpoints can easily be wiped through, e.g. closing and opening the workbook (a screenshot would be really useful).
c) your workbook is broken in some way. It would be unlikely to break something as fundamental as stopping at breakpoints and still function normally. Are you sure your code is actually running?
Just sharing a funny thing which happened to me in case it helps someone. The mistake I did was that I simply took someone's method code meant for workbook open event and pasted it on Sheet1 excel object code area. So there was no possibility of Workbook_Open method getting fired ever.
Private Sub Workbook_Open()
Stop
On Error Resume Next
Call ActiveSheet.Worksheet_Activate
On Error GoTo 0
End Sub
What I was supposed to do is paste this method after double clicking ThisWorkbook node under Microsoft Excel Objects in Project pane as shown below:
Note: Side effect of copy-pasting others code can be freaky at times.
a) Double check that your breakpoints got disabled or not.
b) Double check that you added a conditional breakpoint or not
c) If you run your macro using C# code (using, the _Run2 command), breakpoints and stop doesn't work sometimes.
I have the problems as described above:
Stop and Breakpoints not working
Single step F8 worked, but code was not highlighted in yellow
Closing VBA editor did not help
My remedy: close VBA editor again, save Excel-file, open editor, back to normal
I've never faced this problem for years. Today for the first time I started using watch expressions with stopping when true.
This happens to me once in a while and the following solves the problem for me every time:
Create a Sub with only the command Stop in it. Run it. Then try your routine, the breakpoints and Stop commands should now work correctly.
Make sure that you do not have a named Range that matches the name of the Function or Subroutine you are calling. This will look like the Function or Subroutine is failing, but it is actually failing before the routine is ever called with an 'invalid cell reference'.
I had this problem as well. My solution was put an error in the code and run it. After I cleared the error the breakpoints started working again. That was weird.
I been writing code in VBA for many years but today I came across this problem for the first time. None of the solutions I found on the web worked but here's something simply you can use instead of Stop:
ErrCatch = 1 / 0
Still doesn't solve the breakpoints not working though...
I went int my vba code, added an enter (new blank line), then ran it again.
Voila! It ran the code and stopped at the breakpoint!
Not just me then! On a few occasions the yellow hi-lite stops a few lines beyond the breakpoint! I guess the code is running so fast it can't stop in time. :) As suggested above, I find adding "stops" here and there and also exporting & re-importing helps too.

Null Reference Error Visual Basic - can't find the issue

I'm writing code and there is a null reference exception. I can see where it is, but I can't work out how to fix it. I'm honestly not sure why, I've been reading and re-reading my code, trying different things. I think I'm being dense or possibly have a mental block on it somehow.
The two bits of code are :
For looper = 0 To 3
Sandpit.Controls.Add(Me.QueueMembers(looper).VisRep)
Me.QueueMembers(looper).VisRep.ForeColor = Me.QueueMembers(looper).GetBackgroundColour
Select Case (Me.Direction)
Case "R"
TempPoint.X += 32
TempPoint.Y = 260
Case "U"
TempPoint.Y += 32
Case "L"
TempPoint.X -= 32
End Select
Which works for creating a queue and everything. When I try to remove anything from the queue, though, using the following code:
Public Sub RemoveDiner()
Dim TempDiner As Diner
For looper = 0 To Me.EndPointer - 1
TempDiner = QueueMembers(looper)
QueueMembers(looper) = QueueMembers(looper + 1)
Next
DrawQueue()
End Sub
It's the looper causing the problem, I think because once the item is deleted, there aren't three items in the QueueMembers array.
If someone could just give me advice on how to fix this because I'm being completely dense about it, please, I would be very grateful.
Thanks!

QlikView ActiveDocument.NoOfSheets not working

I created a new qlikview doc and in the script I just wanted to know the no of sheets. So I wrote
iNumSheets = ActiveDocument.NoOfSheets;
iVar = 2;
FOR t = 0 to iNumSheets
iVar = 4;
NEXT
I get the following error
Script line error:
FOR t = 0 to iNumSheets
What am I missing? I am a programmers for years and these simple things often drive me nuts in qlikview. Please help.
It appears that you are using the Load Script editor for your code, rather than the Module Editor.
You can access the module editor using Ctrl+M.
You will need to remove the semicolons at the end of your code lines and also enclose your code with Sub and End Sub if you are using VBScript as the lanuage for the code.
Since the for loop counter is starting from 0 you'll have to do iNumSheets - 1 i.e., for t = 0 to iNumSheets - 1.
You can try the below code to loop over the visible sheets which avoids the additional step.
Code
for i = 0 to ActiveDocument.NoOfSheets - 1
your code...
next

VBA to GetElementByID on a Web form

I'm having a bit of trouble with my VBA code filling in a form on an intranet page. It generally works okay but every so often, the ID's of the fields on this form change and I have to update my code but not until I've had lots of errors reported. Is there anyway I can use a wildcard, or loop through the possibilities before it tries to fill out the form? The bit of code I'm using is
WebBrowser1.Document.GetElementById("Template_ctl24_ctl00_Shelfmark" & x & "_TextField").value = Range("Q" & x + 11).value
But the ID can change to Template_ctl22_ctl00.... or Template_ctl25_ctl00.... for a reason unknown to me. I don't have control over that area - i'm really only front end.
So is there some variation on using a * wildcard?
Or looping through whether the ID is a 22, 24, 25 or whatever before it proceeds?
What can and can't you do with this sort of line of VBA code?
Thanks in advance
Paul
If you know where the element is positioned on the page it would be much better to locate it using something like getElementsByTagName.
However, you could use a simple loop. In the following I've assumed the attempt to reference a non-existing element results in Nothing, but perhaps it generates an error - I haven't tested. If so, you'll need to use error-handling code instead.
Dim elem As Variant
For x = 22 To 25
Set elem = WebBrowser1.Document.GetElementById("Template_ctl24_ctl00_Shelfmark" _
& x & "_TextField")
If Not elem Is Nothing Then
Exit For
End If
Next x
If elem Is Nothing Then
'Doh! not found
Else
'obtain elem.value
End If