Efficiency Using IF And OR

Jan 29, 2009

I created a macro that checked a cell for invalid numbers. There were 6 I checked for: #REF, #NUM, ####, #Div/0, #N/A, #Null. Because you can only compare two "phrases" with OR, I had to write it like this:

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IF Formula Efficiency

Jul 12, 2007

If there is either a 1 or 0 i cell A1 what is the most efficient =IF(A1=1;B1;C1) or
=A1*B1 + (1-A1)*C1? Or perhaps their are something even more efficient??

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Speed/Efficiency For If-Else Construct

Apr 21, 2009

My question is about the If-Else Construct.

I often write If-Else statements that require an action be taken only if something is true. If that something is false, no action is to be taken.

My question is, how do you code "no action".

The following is what i usually

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Code Evaluation For Efficiency

Sep 18, 2007

It is to large to upload here and I have removed the sensitive data that would normally be present. The part I'm currently stuck at is the multiple search criteria, one part works while the other does not. Also, I have yet to discover a way to indicate to the user that the correct Row is selected and being edited in the right cells.

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Increase Efficiency When Running A Loop?

Apr 27, 2014

I run a rather simple loop (see below). But as it runs through A1 to A28000 it takes a lot of time. Is there a more efficient loop to operate this simple task?

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How To Reduce Formula Size/improve Efficiency

Sep 1, 2009

how to reduce formula size/improve excel efficiency?

I have a really complicated formula with lots of COUNTAs, VLOOKUPs, IFs, etc etc etc which returns a variety of values, ZEROs (for blank cells being referenced), and #NAs.

I would like to turn all ZEROs and #NAs into ""s without repeating this super long formula over and over.

I am curently using:

=IF(or(ISBLANK([superlongformula]),ISNA([superlongformula])),"",[superlongformula])

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Efficiency Of Custom Functions (UDF) Compared To Standard/Native Formulas

Sep 30, 2006

Assume I have a sheet consisting of 50 rows with 3 columns of figures. A fourth column contains a formula to calculate values, eg A1+B1+C1, on each line/row. I could enter A1+B1+C1 in the first cell and Copy, Paste to the other 49 cells. Alternatively, I replace A1+B1+C1 with a UDF.

Is there any difference in performance with using a UDF compared to using the long-hand/standard approach, or is it just a question of convenience? After all, both are doing the same operation with the same calculation.

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