Quote From TreeofLife:
Your thesis can be anything you want it to be - you don't have to include everything you did in a paper or you can add extra stuff. If someone were to compare my thesis with one of my papers they would find I'm saying one thing in one and something else in another - they are actually both true, it's just for the thesis I am using the whole data set and for the paper I am using a selection of the data set. This wasn't planned, it was just when I was writing the paper a year after submission I realised that some things should have been excluded initially.
Thanks - yeah makes sense!
Just spoke to one of my supervisors and asked if it was okay. Said it was totally fine.