[Eeglablist] Double precision

[Ahmad, Jumana]

Dear all,

I understand the rationale for using double precision, but am confused as to when to convert the data. I am not using the GUI so do I need to specific double precision every time I reload the data?

Also, as I batch process 600 subjects, I save the data after nearly every major processing step.

Unfortunately I did not realise the  file options were ticket to single precision. Therefore I filtered the data and referenced to a single electrode, deleted bad segments of data and then saved, loaded the data and then ran ICA.

I realise that pop runica converts to double precision, but would I have lost information in previous process of steps by having the 'single' default ticked? 

Do I therefore need to redo my analysis? And if so, how should I concert to double in code? And do I do it after every save, or after every computation?

Best wishes,
Jumana