Vlookup values in an array and store them in another array

[cruzrji1]

I´ve been struggling witht this for a while, please help...

I want to store range("G7:G200") as arr1, then store range ("A7:C500") as arr2, also have a third array called arr3, then I need to vlookup all the values for arr1 in arr2 and store the results in arr3, then write arr3 in range("H1:H200"). I need to do this in VBA and store the results as variables in another array, because I will perform more calculations based on the result of the vlookup, also this is as a test, actual values to vlookup and return results are about 4,000

so far...

sub looking()
dim arr1() as variant
dim arr2() as variant
dim arr3() as variant

arr1= range("G7:G200").value
arr2= range("A7:C500").value

for i=1 to 200

arr3(i,1)=worksheetfunction.vlookup(arr1(i,1),arr2,2,false)
next i

range("H1:H200").value=arr3

end sub


What is wrong with this?!

 

[Domenic]

You'll need to allocate storage space for arr3 using the ReDim statement. There's no need to do the same with arr1 and arr2 since storage space is automatically allocated to them when assigning an array. Also, I would suggest you use the VLookup method of the Application object, instead of the WorksheetFunction object. In doing so, you'll get a non-breaking error when there's no match. So you might want to try something like this...

[COLOR=darkblue]Option[/COLOR] [COLOR=darkblue]Explicit[/COLOR]

[COLOR=darkblue]Sub[/COLOR] looking()

    [COLOR=darkblue]Dim[/COLOR] arr1() [COLOR=darkblue]As[/COLOR] [COLOR=darkblue]Variant[/COLOR]
    [COLOR=darkblue]Dim[/COLOR] arr2() [COLOR=darkblue]As[/COLOR] [COLOR=darkblue]Variant[/COLOR]
    [COLOR=darkblue]Dim[/COLOR] arr3() [COLOR=darkblue]As[/COLOR] [COLOR=darkblue]Variant[/COLOR]
    [COLOR=darkblue]Dim[/COLOR] i [COLOR=darkblue]As[/COLOR] [COLOR=darkblue]Long[/COLOR]
    
    arr1 = Range("G7:G" & Cells(Rows.Count, "G").End(xlUp).Row).Value
    arr2 = Range("A7:C500").Value
    
    [COLOR=darkblue]ReDim[/COLOR] arr3(1 [COLOR=darkblue]To[/COLOR] [COLOR=darkblue]UBound[/COLOR](arr1, 1), 1 [COLOR=darkblue]To[/COLOR] 1)
    
    [COLOR=darkblue]For[/COLOR] i = 1 [COLOR=darkblue]To[/COLOR] [COLOR=darkblue]UBound[/COLOR](arr3, 1)
        arr3(i, 1) = Application.VLookup(arr1(i, 1), arr2, 2, [COLOR=darkblue]False[/COLOR])
    [COLOR=darkblue]Next[/COLOR] i
    
    Range("H1").Resize(UBound(arr3, 1)).Value = arr3

[COLOR=darkblue]End[/COLOR] [COLOR=darkblue]Sub[/COLOR]

Hope this helps!

 

[cruzrji1]

You'll need to allocate storage space for arr3 using the ReDim statement. There's no need to do the same with arr1 and arr2 since storage space is automatically allocated to them when assigning an array. Also, I would suggest you use the VLookup method of the Application object, instead of the WorksheetFunction object. In doing so, you'll get a non-breaking error when there's no match. So you might want to try something like this...

[COLOR=darkblue]Option[/COLOR] [COLOR=darkblue]Explicit[/COLOR]

[COLOR=darkblue]Sub[/COLOR] looking()

    [COLOR=darkblue]Dim[/COLOR] arr1() [COLOR=darkblue]As[/COLOR] [COLOR=darkblue]Variant[/COLOR]
    [COLOR=darkblue]Dim[/COLOR] arr2() [COLOR=darkblue]As[/COLOR] [COLOR=darkblue]Variant[/COLOR]
    [COLOR=darkblue]Dim[/COLOR] arr3() [COLOR=darkblue]As[/COLOR] [COLOR=darkblue]Variant[/COLOR]
    [COLOR=darkblue]Dim[/COLOR] i [COLOR=darkblue]As[/COLOR] [COLOR=darkblue]Long[/COLOR]
    
    arr1 = Range("G7:G" & Cells(Rows.Count, "G").End(xlUp).Row).Value
    arr2 = Range("A7:C500").Value
    
    [COLOR=darkblue]ReDim[/COLOR] arr3(1 [COLOR=darkblue]To[/COLOR] [COLOR=darkblue]UBound[/COLOR](arr1, 1), 1 [COLOR=darkblue]To[/COLOR] 1)
    
    [COLOR=darkblue]For[/COLOR] i = 1 [COLOR=darkblue]To[/COLOR] [COLOR=darkblue]UBound[/COLOR](arr3, 1)
        arr3(i, 1) = Application.VLookup(arr1(i, 1), arr2, 2, [COLOR=darkblue]False[/COLOR])
    [COLOR=darkblue]Next[/COLOR] i
    
    Range("H1").Resize(UBound(arr3, 1)).Value = arr3

[COLOR=darkblue]End[/COLOR] [COLOR=darkblue]Sub[/COLOR]

Hope this helps!

Heey thanks! this was very helpful, especially for the redim part. I was also having troubles because of the base 0 array, but I figured about that for myself =D

 

[Domenic]

You're very welcome!