Solved

Transpose data in an two dimensional array

Posted on 2011-03-22
3
237 Views
Last Modified: 2012-08-13
I know that if you use Redim Preserve, you can only change the last dimesion of the array.
So I've now got a populated array that I want to paste into an excel sheet.  The problem is that the rows and columns are transposed.
Is there an easy way (memory and speed efficient) to transpose the array's info?
I thought the following could work, but doesn't....
      Range(Cells(20, 2), Cells(25, 3)) = Transpose(Arr)
Arr is a two dimensional array Arr(2,6) and I want it to be Arr(6,2)
Thanks
JL
0
Comment
Question by:jlfourie
  • 2
3 Comments
 
LVL 85

Accepted Solution

by:
Rory Archibald earned 500 total points
ID: 35188073
Using
Range(Cells(20, 2), Cells(25, 3)) = Application.Transpose(Arr)

Open in new window

may work, but I prefer to loop and create a new array:
Function TransposeGetRows(varData) As Variant
   Dim lngRow As Long, lngCol As Long
   Dim varOut()
   ReDim varOut(1 To UBound(varData, 2) + 1, 1 To UBound(varData, 1) + 1)
   For lngRow = LBound(varData, 2) To UBound(varData, 2)
      For lngCol = LBound(varData, 1) To UBound(varData, 1)
         varOut(lngRow + 1, lngCol + 1) = varData(lngCol, lngRow)
      Next lngCol
   Next lngRow
  TransposeGetRows = varOut
End Function

Open in new window


which assumes the input array is 0 based.

0
 

Author Comment

by:jlfourie
ID: 35188167
Thanks, I just got to the same application.transpose solution and wanted to update my question.  And it works well and fast.
I might try your other option, if you think it will be much quicker (memory wise).
Regards
JL
0
 

Author Closing Comment

by:jlfourie
ID: 35188170
Thanks for a speedy response.
0

Featured Post

Is Your Active Directory as Secure as You Think?

More than 75% of all records are compromised because of the loss or theft of a privileged credential. Experts have been exploring Active Directory infrastructure to identify key threats and establish best practices for keeping data safe. Attend this month’s webinar to learn more.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Introduction This Article briefly covers methods of calculating the NPV and IRR variants in Excel as well as the limitations in calculating and interpreting IRR results. Paraphrasing Richard Shockley, author of my favourite finance reference tex…
Introduction While answering a recent question (http:/Q_27311462.html), I created an alternative function to the Excel Concatenate() function that you might find useful.  I tested several solutions and share the results in this article as well as t…
The view will learn how to download and install SIMTOOLS and FORMLIST into Excel, how to use SIMTOOLS to generate a Monte Carlo simulation of 30 sales calls, and how to calculate the conditional probability based on the results of the Monte Carlo …
This Micro Tutorial will demonstrate how to use a scrolling table in Microsoft Excel using the INDEX function.

910 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

21 Experts available now in Live!

Get 1:1 Help Now