Help to reduce lengthy formula

malik641

Board Regular
Joined
Sep 6, 2005
Messages
65
I need to place this formula into 120,000 cells. Problem is, the workbook becomes quite LARGE (around 25MB extra from THESE cells alone) if I copy and paste the following formula into 10,000 rows by 12 columns.

Here's the formula with an explanaition following:

=IF(OR(Forecast!G2="",Actual!G2=""),"",IF(ISERROR(OR(DATEDIF(Forecast!G2,Actual!G2,"Y"),DATEDIF(Forecast!G2,Actual!G2,"ym"),DATEDIF(Forecast!G2,Actual!G2,"md"))),"",IF(AND(DATEDIF(Forecast!G2,Actual!G2,"Y")=0,DATEDIF(Forecast!G2,Actual!G2,"ym")=0,DATEDIF(Forecast!G2,Actual!G2,"md")=0),"Projected: "&TEXT(Forecast!G2,"dd-mmm-yyyy")&CHAR(10)&"On Time","Projected: "&TEXT(Forecast!G2,"dd-mmm-yyyy")&CHAR(10)&DATEDIF(Forecast!G2,Actual!G2,"Y")&" Years "&DATEDIF(Forecast!G2,Actual!G2,"ym")&" Months "&IF(DATEDIF(Forecast!G2,Actual!G2,"md")<=0,"0 Days",DATEDIF(Forecast!G2,Actual!G2,"md")&" Days"))))

This formula calls on two sheets: Forecast and Actual

Forecast and Actual contain dates on when the user thinks something will happen (hence, forecast) and when that something ACTUALLY does happen (and of course, Actual).

If the date on Actual exceeds the date on Forecast, it is considered late. Here is some sample data and results for late and on time dates.

Late
Forecast:
G2= 5/25/2005

Actual:
G2= 5/26/2005

Result from formula:

Projected: 5/25/2005
0 Years 0 Months 1 Days


On Time
Forecast:
G2= 5/25/2005

Actual:
G2= 5/20/2005

Result from formula:

Projected: 5/25/2005
On Time



And if either date is missing, it returns a blank.
Maybe I should reconsider the style of the results?

Thanks in advance[/b]
 

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Oaktree

MrExcel MVP
Joined
Jun 20, 2002
Messages
8,053
Office Version
  1. 365
A little better...

Code:
=IF(OR(Forecast!G2="",Actual!G2=""),"","Projected: "&TEXT(Forecast!G2,"dd-mmm-yyyy")&CHAR(10)&IF(Forecast!G2<Actual!G2,DATEDIF(Forecast!G2,Actual!G2,"y")&" years "&DATEDIF(Forecast!G2,Actual!G2,"ym")&" months "&DATEDIF(Forecast!G2,Actual!G2,"md")&" days","On Time"))
 

malik641

Board Regular
Joined
Sep 6, 2005
Messages
65
Thanks Oaktree :biggrin: Just what I needed.

And I just spoke to my boss and she said I won't need to use 10,000 rows....only about 500. So even better now :LOL:
 
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