[Mne_analysis] Problem with plotting annotations

[Nico Adelhöfer]

Ah, I see. Now they are looking correct. Thank you!


Quoting Mainak Jas <mainakjas at gmail.com>:

> This might be an issue with the EEG average reference.
>
> Can you turn of proj and see if you still have the same problem? The button
> is at the lower right corner.
>
> Mainak
>
> On Sun, Aug 14, 2016 at 4:03 PM, Nico Adelhöfer <nico.adelhoefer at st.ovgu.de>
> wrote:
>
>> Fantastic, it works. Thanks a lot for the help and support! :)
>>
>> Another issue unrelated to annotations: When I choose two channels and
>> plot them, the second channel looks actually exactly like a mirrored
>> version of the first. But it seems that it is only plotting and only
>> when I pick 2 channels, not 3 or another number. This is my code:
>>
>> raw = mne.io.read_raw_fif(path+fname, preload=True)
>> ch = ['F3','F4']
>> raw.pick_channels(ch)
>> raw.plot() # 2nd channel looks exactly mirrored
>> # I think it is an issue of plotting, not on the data-level:
>> probe1 = raw[0][0][0][0] + raw[1][0][0][0]
>> probe2 = raw[0][0][0][10] + raw[1][0][0][10]
>> print(probe1 - probe2) # not zero
>>
>> This is not urgent, but I'm curious if this is a known issue.
>>
>> Nico
>>
>>
>>
>> Quoting Mainak Jas <mainakjas at gmail.com>:
>>
>> > On Sat, Aug 13, 2016 at 7:51 PM, Nico Adelhöfer <
>> nico.adelhoefer at st.ovgu.de>
>> > wrote:
>> >
>> >> For me it now says that the name 'int32' is not defined.
>> >
>> >
>> > You might have to do np,int32 then.
>> >
>> > Mainak
>> >
>> >
>> >> When I
>> >> exclude the dtype parameter, I get no error when plotting. :) But now
>> >> I also don't see any annotations in the plot.
>> >>
>> >>
>> >>
>> >> Quoting Mainak Jas <mainakjas at gmail.com>:
>> >>
>> >> > okay. There seems to be some problem with the date in your measurement
>> >> info.
>> >> >
>> >> > This should fix it:
>> >> >
>> >> > raw.info['meas_date'] = np.array([1463353331, 0], dtype=int32)
>> >> >
>> >> > Let us know if you still get the error after that.
>> >> >
>> >> > Mainak
>> >> >
>> >> > On Sat, Aug 13, 2016 at 1:23 AM, Nico Adelhöfer <
>> >> nico.adelhoefer at st.ovgu.de>
>> >> > wrote:
>> >> >
>> >> >> Hello,
>> >> >>
>> >> >> I get:
>> >> >> array([1463353331])
>> >> >>
>> >> >> Nico
>> >> >>
>> >> >>
>> >> >> Quoting Mainak Jas <mainakjas at gmail.com>:
>> >> >>
>> >> >> > Hi Nico,
>> >> >> >
>> >> >> > Before we try to debug any further, can you let us know what
>> >> >> > raw.info['meas_date']
>> >> >> > looks like in your data?
>> >> >> >
>> >> >> > Mainak
>> >> >> >
>> >> >> > On Thu, Aug 11, 2016 at 7:21 PM, Nico Adelhöfer <
>> >> >> nico.adelhoefer at st.ovgu.de>
>> >> >> > wrote:
>> >> >> >
>> >> >> >> Hello,
>> >> >> >>
>> >> >> >> can someone tell me what the problem might be here? When trying to
>> >> >> >> plot annotations, I get an IndexError in the file annotations.py:
>> >> >> >>
>> >> >> >> --> 122         meas_date = meas_date[0] + meas_date[1] / 1000000.
>> >> >> >>
>> >> >> >> My commands are:
>> >> >> >>
>> >> >> >> onset = [1] # also tried [1 + raw.first_samp]
>> >> >> >> dur = [5]
>> >> >> >> raw.annotations = mne.Annotations(onset, dur, 'bad')
>> >> >> >> raw.plot() # here comes the error
>> >> >> >>
>> >> >> >> The raw file here is fif. I saved an edf using raw.save, cutting
>> >> parts
>> >> >> >> from the beginning and the end of the recording. In the edf file
>> >> there
>> >> >> >> is no error.
>> >> >> >>
>> >> >> >> Thanks,
>> >> >> >> Nico
>> >> >> >>
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