filtering in MNE

✉️ Mailing List Archive (read-only)
1

Dear MNE users/developers,

I try to filter my data using

mne_process_raw --lowpass 55 --highpass 5 --projoff ?

As program output I got the following:

Filter : 5.000 ... 55.0 Hz bins : 40 ... 450 of 4097 hpw : 3 lpw : 20
Highpass filter will work as specified.
filter : 0.000 ... 40.0 Hz bins : 0 ... 327 of 4097 hpw : 3 lpw : 20
Highpass filter will work as specified.

Does it mean that program first filter 5-55 Hz and then uses the default 0-44 Hz filter?

If I use
mne_process_raw --filteroff --lowpass 55 --highpass 5 --projoff ?
No filtration seems to happen.

Elena

2

Hi Elena,

The second set of filtering limits apply to EOG. mne_process_raw --
help tells you what the defaults are and how to change the EOG filter.

I am sorry that this feature was not mentioned in the manual. I have
fixed the manual now but it is not in distribution yet.

- Matti