How to calculate the accuracy from some fix value

Reach Module / M+ / M2 RTK / PPK configuration
1

Hi, maybe there is a formula to calculate many fix coordinate produced with post processing method. Is only average them?
For example I have 2000 fix points. Is only average them?
Thank you
This is my attachment
15_ENU.log (363.2 KB)

2

Solved… just change the option rtk-plot