Excel cells evaluating blanks incorrectly - error-handling

I have some cells in an Excel 2007 file that perform SUMPRODUCT() operations over a range (lets call it RANGE2) of cells that have if statements in them. The IF() statements are similar to the following:
=IF(ISNUMBER(RANGE1), *mathematical operation on RANGE1*, "")
In other words, I want to
Since I put the "" in the if statements, the cells that sumproduct over RANGE2 produce #VALUE! errors.
Is there a way around this? I would like to get numerical results from this evaluation.
Edit 1
I have graphs that are drawn using the numbers from Range1 and Range2. If I use 0's instead of "", the graphs will tend to zero and will be misleading.

Sorry to clarify - are all the results of the sumproduct producing the error or only the ones that are attempting to add the "" values?
If you just need to hide the errors, you can use
=IFERROR(<existing formula here>,"")

Related

Excel formula within VBA

I have quite a few cells that contain formula, then with VBA the outcome of this formula is the value for a variable, like so:
On sheet in cell AS4:
=SUMPRODUCT(MAX((ROW($AE$4:$AE$997))*($AE$4:$AE$997<>"")))
and then in my VBA:
numRows = ws.Range("AS4").Value
However this is starting to get hard to keep track of which cell is feeding which variable, avoiding overwriting those cells on the sheet by accident, etc.
I need to be able to perform this calculation within VBA if I can, removing the need to have "calculation cells" on my sheet.
I have discovered there is a way to use formula with WorksheetFunction, but only found simple examples of this and cannot adapt it to my situation above.
numRows = WorksheetFunction.SumProduct(MAX((ROW($AE$4:$AE$997))*($AE$4:$AE$997<>"")))
Is not going to work...
Is there a way to do this, or am I better scrapping the idea of using formula and using a pure VBA method?
With help from SJR this was the answer:
numRows = [=SUMPRODUCT(MAX((ROW(Weights!$AE$4:$AE$997))*(Weights!$AE$4:$AE$997<>"""")))]
A bit more research taught me that evaluate(" ") can be just replaced with square brackets [ and ]. Although, if I had variables in the mix of this formula or the formula wasn't constant then I would have to use Evaluate.
I also needed to add the sheet name to the formula as this formula was no longer functioning within the sheet and AE4:AE997 was no longer referring to the correct sheet.
Doubling up on quotes is also necessary as it is code and sees " differently to a formula on the sheet

SpecialCells in Excel to return value of a formula

I wanted a quick simple way to copy cell values to another sheet using SpecialCells in Excel as opposed to looping
My VBA code is as below:
Sub copyMissingData()
Worksheets("Source").Range("Z4:Z2000").SpecialCells(xlCellTypeConstants).Copy Worksheets("Destination").Range("missing_qbc")
End Sub
My source data Z4:Z20000 has formulas that returns a value (texts/numbers/fraction etc) or blank "". I want the copy to ignore the blanks, but copy any other value returned
The VBA code above using SpecialCells(xlCellTypeConstants) doesn't work because of the formula in the source range.
My question: Is there a straightforward way I can use range.specialcells to copy my data from a worksheet to another bearing in mind that source cells contain formulas and the formulas may produce empty string cells which will need to be skipped
If you have formulas, why are you trying to select the constants?
Use this:
Worksheets("Source").Range("Z4:Z2000").SpecialCells(xlCellTypeFormulas, 23).Copy
Worksheets("Destination").Range("missing_qbc").pastespecial(xlPasteValues)
The 23 means "Numbers, Texts, Logicals and Errors".
Doing the copy and paste separately ensure blanks are skipped (if that's what you mean by "ignore").
Paste values makes sure only the values get pasted, not the formulas themselves.
Please note that if you have a formula in a cell, it is not blank. Even if the formula produces an empty string value as a result, the cell itself is not empty! In htat case, you need to do a copy-paste values in place before you do anything else - and even then Excel sometimes doesn't consider blank cells blank. If this is the case, you need to iterate (loop) through the cells, and copy them one-by-one.
The easiest way I can think of is to remove the blanks after copying all:
Set rngFrom = [Source!Z4:Z2000]
Set rngTo = [Destination!missing_qbc].Resize(rngFrom.Rows.Count, 1)
rngTo.Value = rngFrom.Value
rngTo.SpecialCells(xlCellTypeBlanks).Delete Shift:=xlUp
The more complicated way is with array formula, but doesn't need VBA.

Convert Excel Formula to VBA

I have this formula that looks at various criteria across multiple columns and checks to see that if all the all the criteria match, it will paste data from one column to another. I've tried a couple ways to get it into VBA, but I can't seem to get anything to work. Thanks!
=INDEX($D$2:$D$1112,MATCH(1,($A$2:$A$1112=$U$7)*($C$2:$C$1112=$W$7)*($B$2:$B$1112=F3),0))
You are not going to be able to use that array formula to directly return a value to a cell. VBA does not process an array formula the way that the worksheet can. The best method is to use the worksheet's processing or one of the Application Evaluate methods.
Your lack of a worksheet to reference troubles me. When a formula is in a worksheet cell, it knows what worksheet it is on. When using formulas within VBA, the parent worksheet is a 'best guess' without explicit worksheet referencing.
Here are three methods to put the results from that array formula into Z2:Z4 on the active worksheet. Remember that these cell references should be modified to include the worksheet name.
With ActiveSheet
'this simply puts the formula into the worksheet then reverts the cell from the formula to the returned formula value
.Range("Z2").FormulaArray = "=INDEX($D$2:$D$1112, MATCH(1, ($A$2:$A$1112=$U$7)*($C$2:$C$1112=$W$7)*($B$2:$B$1112=F3), 0))"
.Range("Z2") = .Range("Z2").Value
'this uses the 'square bracket' method of evaluating a formula on-the-fly
'the formula being evaluated can be array or non-array
'this method is does not like building a formula string from pieces of text
.Range("Z3") = [INDEX($D$2:$D$1112, MATCH(1, ($A$2:$A$1112=$U$7)*($C$2:$C$1112=$W$7)*($B$2:$B$1112=F3), 0))]
'similar to the method directly above, Application.Evaluate does just that.
'the formula being evaluated can be array or non-array
'this method is easier to build a formula string from pieces of text
.Range("Z4") = Application.Evaluate("INDEX($D$2:$D$1112, MATCH(1, ($A$2:$A$1112=$U$7)*($C$2:$C$1112=$W$7)*($B$2:$B$1112=F3), 0))")
End With
You need 2 changes:
(1) To use a function in VBA when it is available in native Excel, you need to preface each function with Application.WorksheetFunction. ie:
x = Application.WorksheetFunction.Sum(y,z)
(2) To reference a cell within a sheet, in VBA, you need to access it specifically, in one of a few ways. The simplest for our purposes is the RANGE property, as follows:
x = Application.WorksheetFunction.Sum(Range("A1:A2"))
So to put those two changes together, your formula would look like this:
=Application.WorksheetFunction.INDEX(Range("$D$2:$D$1112",Application.WorksheetFunction.MATCH(1,(RANGE("$A$2:$A$1112"=RANGE("$U$7")*(Range("$C$2:$C$1112"=Range("$W$7")*(Range("$B$2:$B$1112"=Range("F3"),0))
Although I see now having gone through this that you seem to be using an Array Formula - not sure if any special jigging is required to get that to work.

Return blank if #VALUE is returned

I've setup a formula that combines numbers from multiple worksheets and then compares it against another number from worksheet.
I am using the INDIRECT function to reference the sheets as well as COLUMN and ROW to adjust the numbers to the corresponding coordinates when I drag it across.
However, some of the figures don't always exist in the worksheets so a #VALUE error is returned. How Can I change it so a blank cell is shown if this happens?
My Current formula: =INDIRECT("'"&$C$11&"'!R"&ROW(E29)&"C"&COLUMN(E29),FALSE)-SUM(INDIRECT("'"&$C$11&"'!R"&ROW(C29)&"C"&COLUMN(C29),FALSE),INDIRECT("'"&$C$13&"'!R"&ROW(E29)&"C"&COLUMN(E29),FALSE))
Use =IFERROR(<your original formula>, "") which will replace any error with "" but passes any other result through.
But do bear in mind the degradation in spreadsheet stability: INDIRECT makes spreadsheets brittle enough on its own: your hiding any error output could be dangerous.

#Value! error with =(A1+A2)

I'm trying to add multiple cells with the formula =(A1+A2+A3...etc)
Which works, but if all the cells are empty then I get a #Value!
PLEASE NOTE:
Yes I am aware the proper way to add cell values is with =SUM(A1:A3)
However the cells I'm adding together each have their own functions to get their numbers, and the =SUM function won't add them together.
So! Is there a way I can make =(A1+A2+A3...etc) not give me a #Value! error in the cell that's supposed to total them if ALL the cells (A1,A2,etc) are empty? (as in, the cell with the total will just be blank)
Yes I know this is overly complicated. I'm working with that I've got.
EDIT
I might have figured out my problem. My 'false' statement in the function of the cells that were being added is "" in order to make the cell not have a 0 in it when empty. When it tries to add those cells together, if they all read "" and none are a number that's when I get the #Value! error. Not sure yet what I'm going to do about that...
EDIT 2
Yup. Problem was caused by having a non-numerical value as my false statement. Didn't want a bunch of zeros everywhere, but oh well I guess.
I tried both Excel 2007 and Calc 3.4.1, and neither one of these generated the #Value! that you mention. I am thinking that perhaps your source cells' equations are producing a value that is causing this to error out.
For example, if one of the cells has a String value, then this will be the result. This can be detected with the TYPE() function. for example:
=( IF(TYPE(A1)=1;A1;0) + IF(TYPE(A1)=1;B1;0) + ...)
this will make sure that you are actually adding numbers before the addition takes place.
edit
See: http://www.techonthenet.com/excel/formulas/type.php
for details on TYPE()