[gpsd-users] What to do with eps, spy, eps etc.

[Pi Home Server]

Hello all,

I have a GPS plugged on a Raspberry Pi. I record raw data while driving. What 
is strange is that data are not really accurate to reality. I would like to 
know if ep? fields extracted using Python could help me to correct data. If 
yes, how they can help.
For example for speed, do i have to add eps to speed or replace or … ?

Thank you