SOLVED

Change the row-to-row increment value when copying down a column, from +1 to +300

Copper Contributor

My formula in cell H5 is "=SLOPE('Data 300 Counts'!G903:G1200, 'Laser Pixel Data'!$H$3:$H$300)"

I want to copy this down the column so that H6 is "=SLOPE('Data 300 Counts'!G1203:G1500, 'Laser Pixel Data'!$H$3:$H$300)
...and H7 is "=SLOPE('Data 300 Counts'!G1503:G1800, 'Laser Pixel Data'!$H$3:$H$300)
etc etc

The auto-increment behavior is to make the H6 range be G904:G1201, incrementing the values by one each time.  I need the increment value to be +300 rather than +1.

Thank you.

7 Replies
best response confirmed by Craig_Gallagher (Copper Contributor)
Solution

@Craig_Gallagher ,

 

The idea is

=SLOPE(INDEX('Data 300 Counts'!G:G,903+300**(ROW()-ROW($A$5))):INDEX('Data 300 Counts'!G:G,1200+300**(ROW()-ROW($A$5))), 'Laser Pixel Data'!$H$3:$H$300)

@Craig_Gallagher 

One way of achieving this is to use OFFSET

= SLOPE( OFFSET( CountsBlock, 300*k, 0 ), PixelData )

where 'k' is a relative reference to the helper column {0,1,2, …} and 'CountsBlock' is the first block

='Data 300 Counts'!G903:G1200. 

 

Other options include using INDEX:INDEX for a non-volatile solution or cobbling something together using ROW to give a formula for the sequence 'k'.

Yes, that did the trick, thank you.
Thank you for the response. I got it to do what I needed.

This is my first experience attempting to use expressions to fill in the inputs into other functions. I've always been able to just do the smaller operations in their own cells, and then piece them together, but I had so many iterations this time it would have taken too long to construct them all that way.

@Craig_Gallagher , you are welcome. That was misprint in the formula like 300**( instaed of 300*(

Sorry for that, mistake with copy/paste.

No trouble! I found it pretty quickly. You got me 99.9999% of the way there. Thanks again.

@Sergei BaklanI am working on a similar issue that is driving me nuts.  I am trying to copy the formula below across many columns. This is a complex spreadsheet where we are referencing data vertically down through many rows, and then creating a horizontal map across many columns.  What I basically need to do is increment the F30 to F31, F32, F33, etc... as the formula is copied across.  With no dollar sign, the rows increment from F30 to G30, H30, etc., and with the dollar sign in place before F30, it freezes the F30 so that it shows up in each formula.  The H15 is incrementing as it should to I15, J15, K15, etc...

=IF(ISERROR($F30),"",VLOOKUP(H15,$B$29:$F$9999,5,FALSE))

I would really appreciate any help you can provide 

1 best response

Accepted Solutions
best response confirmed by Craig_Gallagher (Copper Contributor)
Solution

@Craig_Gallagher ,

 

The idea is

=SLOPE(INDEX('Data 300 Counts'!G:G,903+300**(ROW()-ROW($A$5))):INDEX('Data 300 Counts'!G:G,1200+300**(ROW()-ROW($A$5))), 'Laser Pixel Data'!$H$3:$H$300)

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