Calculating Correlation among multiple pairs of columns
Shrikesh M.
An Experienced IT Administrator | Windows server| CCNA | AZURE Database Administrator Associate |A+
Welcome People, Bots & Algo’s of LinkedIn. This is the Monday Edition of The Analyst.
Calculating Correlation among multiple pairs of columns.
So today I want to share with you a way to create a correlations grid
The Dataset has four columns each with 10 rows of data.
What I want to do is find the correlations for each pair of columns?
Column 1 & Dataset
We create a correlation with column1 and itself then copy and edit the formula throughout the grid.
Array 1 : A3 -A12. Array 1 should be absolute reference
Array 2 : A3 - ?A12
Column 2 Formula
Array 1 : B3 -B12. Array 1 should be absolute reference
Array 2 : A3 -A12
Column 3 Formula
Array 1 : C3 -C12. Array 1 should be absolute reference
Array 2 : A3 -A12
Column 4 Formula
Array 1 : D3 -D12. Array 1 should be absolute reference
Array 2 : A3 -A12
You can tell when you have done it right wen every column referencing itself has a perfect correlation of 1
From here we look for significance and take it from