# multitaper analysis in source space

**URL:** <https://mne.discourse.group/t/multitaper-analysis-in-source-space/1097>\
**Category:** Mailing List Archive (read-only)\
**Tags:** list-archive\
**Created:** [October 16, 2016, 2:36pm UTC](https://mne.discourse.group/t/multitaper-analysis-in-source-space/1097 "2016-10-16T14:36:27Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![system](https://global.discourse-cdn.com/free1/uploads/mne/original/1X/85cc6bd2b69cb698a166dc6d880fb550510d0144.jpeg) [@system](https://mne.discourse.group/u/system)\
**Post date:** [October 16, 2016, 2:36pm UTC](https://mne.discourse.group/t/multitaper-analysis-in-source-space/1097/1 "2016-10-16T14:36:27Z")

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Dear MNE developers and advanced users!

I need to perform multitaper analysis in source space.

I have previously used ?multitaper\_psd? to do this.

Now this function is deprecated and replaced by  
mne.time\_frequency.psd\_multitaper  
by Chris Holdgraf. Unfortunately, psd\_multitaper only works with the sensor  
space data (raw, epochs, evoked). How can I now calculate multitaper psd  
in the source space?

Best,

Elena  
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**Author:** ![system](https://global.discourse-cdn.com/free1/uploads/mne/original/1X/85cc6bd2b69cb698a166dc6d880fb550510d0144.jpeg) [@system](https://mne.discourse.group/u/system)\
**Post date:** [October 17, 2016, 8:25am UTC](https://mne.discourse.group/t/multitaper-analysis-in-source-space/1097/2 "2016-10-17T08:25:19Z")

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Hi Elena,

I believe you could still use a private function called \_psd\_multitaper in  
multitaper.py module. It should do the same thing as multitaper\_psd did  
before. Perhaps it should be made public?

-Jaakko

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**Author:** ![system](https://global.discourse-cdn.com/free1/uploads/mne/original/1X/85cc6bd2b69cb698a166dc6d880fb550510d0144.jpeg) [@system](https://mne.discourse.group/u/system)\
**Post date:** [October 17, 2016, 1:03pm UTC](https://mne.discourse.group/t/multitaper-analysis-in-source-space/1097/3 "2016-10-17T13:03:08Z")

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hi Elena,

you were using multitaper\_psd with numpy arrays eg with stc.data ?

if there is a need for such a function we should indeed make a public version.

Alex