?
Solved

limt array range to increase speed

Posted on 2011-09-12
8
Medium Priority
?
252 Views
Last Modified: 2012-05-12
I am using the following as an array lookup and it works but the speed is killing me.

={IFERROR(INDEX(Data!F:F,MATCH($A$31&$C39,Data!A:A&Data!D:D,0)),0)}

I only need columns A-J and Rows 5 - 2000 with row 5 being the field name.  How can I adjust this lookup to get me more speed?

Thanks

0
Comment
Question by:vmccune
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 5
  • 3
8 Comments
 
LVL 50

Accepted Solution

by:
barry houdini earned 2000 total points
ID: 36524618
Clearly you can limit the format to those rows,....perhaps also a different syntax, try

=IFERROR(INDEX(Data!F$5:F$2000,MATCH(1,IF(Data!A$5:A$2000=$A$31,IF(Data!D$5:D$2000=$C39,1)),0)),0)

confirmed with CTRL+SHIFT+ENTER

How many of these do you have?

regards, barry
0
 

Author Comment

by:vmccune
ID: 36524647
1000 rows and about 40 columns.
0
 

Author Comment

by:vmccune
ID: 36524693
the syntax above returne FALSE in the cell and crtl-shift-enter does not provice the right "}"


0
What does it mean to be "Always On"?

Is your cloud always on? With an Always On cloud you won't have to worry about downtime for maintenance or software application code updates, ensuring that your bottom line isn't affected.

 

Author Comment

by:vmccune
ID: 36524756
I got the syntax copied and it works but if I copy it down I get the same value in each row.

0
 
LVL 50

Expert Comment

by:barry houdini
ID: 36524762
It's working OK for me......!

Sorry if you know.....how are you doing CTRL+SHIFT+ENTER? You need to click in the cell with the formula and then press F2 to select - then hold down CTRL and SHIFT while pressing enter.....

Is the A31 fixed for all the formulas with C39 changing as you copy down - what about the lookup ranges does col A + Col D become B and E then C and F etc.?

barry
0
 

Author Comment

by:vmccune
ID: 36524766
forgot to recalc.  its working.  Checking speed now.
0
 
LVL 50

Expert Comment

by:barry houdini
ID: 36524775
>I got the syntax copied and it works but if I copy it down I get the same value in each row

make sure calculation is set to auto....or press F9 to re-calculate.....
0
 

Author Closing Comment

by:vmccune
ID: 36524801
Great!  Thanks.
0

Featured Post

New feature and membership benefit!

New feature! Upgrade and increase expert visibility of your issues with Priority Questions.

Question has a verified solution.

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

Freeze panes is an option within all variants of Excel to enable parts of a sheet to remain stationary when the cursor is in another part of the sheet. This is a very useful feature which is overlooked or under used.
How to get Spreadsheet Compare 2016 working with the 64 bit version of Office 2016
This Micro Tutorial demonstrate the bugs in Microsoft Excel for Mac with Pivot Charts.
This Micro Tutorial will demonstrate in Microsoft Excel how to add style and sexy appeal to horizontal bar charts.

777 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