Formula to search for most previous match?

[marteds]

I'm setting up a spreadsheet to display monitoring data in the form of X, Y and Z coordinates.

I want to be able to show the relative and cumulative differences between measurements.
The formula for the relative difference is just comparing it to the cell above, whilst the cumulative is comparing the baseline value.

In the attached image, I would like to be able to use a formula to be able to search and compare to most recent reading with coordinates rather than just the blank cells above it.

Keeping in mind that this spreadsheet is going to be populated on an ongoing basis so hard coding formulas won't work.

 

[marteds]

 

[marteds]

 

[jtakw]

Hi,

F2 formula copied across to H2, and down as far as needed:

Book1
	C	D	E	F	G	H
1	X	Y	Z	rel. X	rel. Y	rel. Z
2	100.000	500.000	200.000
3	100.001	500.002	200.000	0.001	0.002	0.000
4	100.002	500.003	200.003	0.001	0.001	0.003
5
6
7	100.003	500.004	200.002	0.001	0.001	-0.001
Sheet707

Cell Formulas
Range	Formula
F2	=IFERROR(IF(C2="","",C2-LOOKUP(9.99999999999999E+307,C$1:C1)),"")

 

[marteds]

This worked a treat!
Thanks mate!

Hi,

F2 formula copied across to H2, and down as far as needed:

	C	D	E	F	G	H
X	Y	Z	rel. X	rel. Y	rel. Z

<colgroup><col style="width: 25pxpx"><col><col><col><col><col><col></colgroup><thead>
</thead><tbody>
[TD="align: center"]1[/TD]

[TD="align: center"]2[/TD]
[TD="align: right"]100.000[/TD]
[TD="align: right"]500.000[/TD]
[TD="align: right"]200.000[/TD]

[TD="align: center"]3[/TD]
[TD="align: right"]100.001[/TD]
[TD="align: right"]500.002[/TD]
[TD="align: right"]200.000[/TD]
[TD="align: right"]0.001[/TD]
[TD="align: right"]0.002[/TD]
[TD="align: right"]0.000[/TD]

[TD="align: center"]4[/TD]
[TD="align: right"]100.002[/TD]
[TD="align: right"]500.003[/TD]
[TD="align: right"]200.003[/TD]
[TD="align: right"]0.001[/TD]
[TD="align: right"]0.001[/TD]
[TD="align: right"]0.003[/TD]

[TD="align: center"]5[/TD]
[TD="align: right"][/TD]
[TD="align: right"][/TD]
[TD="align: right"][/TD]

[TD="align: center"]6[/TD]
[TD="align: right"][/TD]
[TD="align: right"][/TD]
[TD="align: right"][/TD]

[TD="align: center"]7[/TD]
[TD="align: right"]100.003[/TD]
[TD="align: right"]500.004[/TD]
[TD="align: right"]200.002[/TD]
[TD="align: right"]0.001[/TD]
[TD="align: right"]0.001[/TD]
[TD="align: right"]-0.001[/TD]

</tbody>

Sheet707​

[TABLE="width: 85%"]
<tbody>[TR]
[TD]Worksheet Formulas[TABLE="width: 100%"]
<thead>[TR="bgcolor: [URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=DAE7F5]#DAE7F5[/URL] "]
[TH="width: 10px"]Cell[/TH]
[TH="align: left"]Formula[/TH]
[/TR]
</thead><tbody>[TR]
[TH="width: 10px, bgcolor: [URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=DAE7F5]#DAE7F5[/URL] "]F2[/TH]
[TD="align: left"]=IFERROR(IF(C2="","",C2-LOOKUP(9.99999999999999E+307,C$1:C1)),"")[/TD]
[/TR]
</tbody>[/TABLE]
[/TD]
[/TR]
</tbody>[/TABLE]

 

[marteds]

Okay so I wanted to expand on the sheet a bit more and will be having multiple points that I would be analyzing, how would you apply the lookup formula for a scenario like this?