Question

I’ve created a large-ish matrix by doing a =pearson( analysis on survey responses in google docs/spreadsheets and would like to convert it into a sorted list.

The matrix has labels (the survey questions) in row 2 and column b. Each intersecting cell has the value. Here’s what the formula looks like.

=pearson(FILTER( Pc!$C$2:$AW$999 ; Pc!$C$2:$AW$2= C$2 ),FILTER(Pc!$C$2:$AW$999 ;Pc!$C$2:$AW$2=$B3))

This is what I’d like to get to:

      a                   b                  c
Question one       question 2            correlation

Then sorting by column c is easy.

How can I get all the points out of the matrix/array, along with the labels in this way?

Ideally I’d be able to do this only to points below the diagonal as there of course are dupes above..

Thanks!

Answer 1

I think I found a solution to placing the combination of the headers in a single column.
It involves a series of auxiliary columns, but works.

Let’s say we have a single column with all unique headers on column A. I’ll assume it’s 6 values. So, on cell B1 we paste:

=ArrayFormula(join(";";A1&","&A2:A$6))

And then copy it down to B5. On C1 we join it all and split making a single column:

=transpose(split(join(";";B1:B5);";"))

If needed, we can split the combination in two columns again on D1

=ArrayFormula(split(C1:C15;","))

I don’t know why, but the value on E1 does not work correctly, so I just pasted =A2

With these columns you can easily do your nice Pearson-Filter trick again to have it all in a single column. Hope this helps 🙂