[Mne_analysis] Topolots for each band of frequencies

[Sundar N]

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Thanks Dan and Eric,
They were some very helpful suggestions.

Now i have them working with band specific topoplots.
I am trying to animate the sequence with topoplots  like a movie , here i
am hit with the issue of refresh rate where in the animation is not smooth.
Could be because of the text output from the function.

plot= epochs.plot_psd_topomap(ch_type='eeg', normalize=True,verbose=False)
plot=evoked.plot_topomap(
ch_type='eeg',times=times,sensors=False,show_names=True, title='Alpha')

how do i disable this text output and retain only the plots. This could
help in smoother animated plot with matplotlib functions.

Regards,
Sundar.


On Thu, Apr 18, 2019 at 7:31 AM Eric Larson <larson.eric.d at gmail.com> wrote:

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>
> You could also turn the Evoked object into an Epochs object using
> EpochsArray
>
> epo = EpochsArray(evoked.data[np.newaxis], evoked.info)
>
> And then you could probably use the epoch-based plotter.
>
> Eric
>
>
> On Wed, Apr 17, 2019 at 5:53 PM Dan McCloy <dan.mccloy at gmail.com> wrote:
>
>>         External Email - Use Caution
>>
>> Hi Sundar,
>> Unfortunately the plot_topomap method of Evoked objects does not have the
>> `bands` argument like the Epochs.plot_psd_topo method does.
>>
>> I think the general approach would be:
>> 1. read in your evoked data from CSV format into a NumPy array
>> 2. use mne.EvokedArray()
>> <https://mne-tools.github.io/dev/generated/mne.EvokedArray.html> to
>> convert it to an MNE Evoked object
>> 3. use Evoked.filter()
>> <https://mne-tools.github.io/dev/generated/mne.Evoked.html?highlight=evoked%20filter#mne.Evoked.filter>
>> method to isolate the frequency band
>> 4. use Evoked.plot_topomap method to plot (see this tutorial
>> <https://mne-tools.github.io/dev/auto_examples/visualization/plot_evoked_topomap.html>
>> for examples)
>>
>>
>> On Tue, Apr 16, 2019 at 10:06 PM Sundar N <suntracks at gmail.com> wrote:
>>
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>>>
>>> Thanks Mary,
>>> This is very helpful, however can i do the same with evoked data, as i
>>> have non - epoched eeg data .
>>> This is in csv format with just channel numbers .
>>>
>>> Regards,
>>> Sundar.
>>>
>>> On Sun, Apr 14, 2019 at 11:06 AM Maryam Zolfaghar <
>>> Maryam.Zolfaghar at colorado.edu> wrote:
>>>
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>>>>
>>>> Hi,
>>>>
>>>> The following link might be helpful:
>>>>
>>>>
>>>> https://martinos.org/mne/stable/auto_tutorials/plot_sensors_time_frequency.html
>>>>
>>>> -Mary
>>>>
>>>> On Sat, Apr 13, 2019 at 11:28 PM Sundar N <suntracks at gmail.com> wrote:
>>>>
>>>>>         External Email - Use Caution
>>>>>
>>>>> HI ,
>>>>> Is there a way to generate topoplots for only a particular frequency
>>>>> band of ERP data? I would like to generate  topoplots for each frequency
>>>>> band separately to visualize alpha / delta / beta bands activations in the
>>>>> topoplots . As of now am able to generate a generic topoplots with mne
>>>>> libraries. Would like to tweak this to make it frequency band specific.
>>>>> Any help here appreciated.
>>>>>
>>>>> Regards,
>>>>> Sundar.
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