# Setting up channel locations **URL:** \ **Category:** Mailing List Archive (read-only)\ **Tags:** list-archive\ **Created:** [January 16, 2019, 2:33pm UTC](https://mne.discourse.group/t/setting-up-channel-locations/1715 "2019-01-16T14:33:42Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![system](https://global.discourse-cdn.com/free1/uploads/mne/original/1X/85cc6bd2b69cb698a166dc6d880fb550510d0144.jpeg) [@system](https://mne.discourse.group/u/system)\ **Post date:** [January 16, 2019, 2:33pm UTC](https://mne.discourse.group/t/setting-up-channel-locations/1715/1 "2019-01-16T14:33:42Z")
External Email - Use Caution Hi, I am struggling to setting up channel locations... I'd like to know if there is a way to set up automatically standardize channel locations from the channel names since in my raw data file I only have the names. I am looking for a way which does not impply to set up a new montage (which I tried but it did not work as some channels resulted to be overlapped and I think is not the proper way to do it) or load the positions contained in a file. The result of the method I am looking for, I guess would add the locations to the 'dig' (digitization points) option in raw.info if I am right? This is the part which gives me error for all the functions I use (error: 'digitization points not found') Kind regards and thank you for the help, Lidia. ---
**Author:** ![system](https://global.discourse-cdn.com/free1/uploads/mne/original/1X/85cc6bd2b69cb698a166dc6d880fb550510d0144.jpeg) [@system](https://mne.discourse.group/u/system)\ **Post date:** [January 16, 2019, 3:21pm UTC](https://mne.discourse.group/t/setting-up-channel-locations/1715/2 "2019-01-16T15:21:47Z")
External Email - Use Caution Hi! Have you tried raw.set\_montage("standard\_1020") You can get all montages by mne.channels.get\_builtin\_montages() Use the montage that contains all (or at least most) of your channel names. If you have exotic names, maybe you can map them to names contained in one of the standard montages. Clemens ---
**Author:** ![system](https://global.discourse-cdn.com/free1/uploads/mne/original/1X/85cc6bd2b69cb698a166dc6d880fb550510d0144.jpeg) [@system](https://mne.discourse.group/u/system)\ **Post date:** [January 17, 2019, 11:58am UTC](https://mne.discourse.group/t/setting-up-channel-locations/1715/3 "2019-01-17T11:58:32Z")
External Email - Use Caution Thanks for your fast answer. This I've already tried several times but I tried again in case, but still is not working... when I want to do: - ica.plot\_components() I get the following error: arrays used as indices must be of interger or (boolean) type. and when trying: - ica.plot\_properties(raw) I get that some electrodes have overlapping positions even though the montage fits only 24 channels out of 53 channels that are contained in raw.info['ch\_names'] and I listed in ['bads'] 28 out of the 53 that I do not want to use. The ones displayed in the error as overlapped are EOGl, EOGr, EOGV, EMGChin from which EMGChin is the only one contained in 'bads'. The code I am using is the following one: rawB0939=mne.io.read\_raw\_edf('B0939.edf',preload='data\_preload') rawB0939\_copy=rawB0939.copy() rawB0939.info['bads']=['AUX','ECG','Lage','Licht','Akku','Beweg.','EOGl:M1','EOGl:M2','EOGr:M1','C3:M2','C4:M1','Fz:M1','Oz:M1','EOGr:M2','F4:M1','O2:M1','F3:M2','O1:M2','Fz:M2','Oz:M2','Fp1:M1','Fp2:M1','T3:M1','T4:M1','P3:M1','P4:M1','F3:M1','STI 014'] rawB0939\_copy.info['bads']=['AUX','ECG','Lage','Licht','Akku','Beweg.','EOGl:M1','EOGl:M2','EOGr:M1','C3:M2','C4:M1','Fz:M1','Oz:M1','EOGr:M2','F4:M1','O2:M1','F3:M2','O1:M2','Fz:M2','Oz:M2','Fp1:M1','Fp2:M1','T3:M1','T4:M1','P3:M1','P4:M1','F3:M1','STI 014'] rawB0939\_copy.crop(tmin=4936,tmax=5300) rawB0939\_copy.plot() # DOWNSAMPLING AND FILTERING CROPPED DATA # rawB0939\_copy.resample(100) # downsampling to 100 Hz ( performs LPF followed by decimation) rawB0939\_copy.filter(l\_freq=49.0,h\_freq=3.0) # to perform ICA # MONTAGE # rawB0939\_copy.set\_montage('standard\_1020') # 24 channels with positions established # ICA # method='fastica' ica=ICA(method=method) print(ica) ica.fit(rawB0939\_copy) print(ica) ica\_components=ica.get\_components() ica.plot\_components(ica\_components) ica.plot\_properties(rawB0939\_copy) Do you have some idea how to solve it? I am trying many things but I get errors through all the ways. Thanks a lot! El mi?., 16 ene. 2019 a las 16:22, Brunner, Clemens ( clemens.brunner at uni-graz.at) (\) escribi?: ---
**Author:** ![system](https://global.discourse-cdn.com/free1/uploads/mne/original/1X/85cc6bd2b69cb698a166dc6d880fb550510d0144.jpeg) [@system](https://mne.discourse.group/u/system)\ **Post date:** [January 17, 2019, 12:00pm UTC](https://mne.discourse.group/t/setting-up-channel-locations/1715/4 "2019-01-17T12:00:35Z")
External Email - Use Caution Ee         External Email - Use Caution Thanks for your fast answer. This I've already tried several times but I tried again in case, but still is not working... when I want to do: - ica.plot\_components() I get the following error: arrays used as indices must be of interger or (boolean) type. and when trying: - ica.plot\_properties(raw) I get that some electrodes have overlapping positions even though the montage fits only 24 channels out of 53 channels that are contained in raw.info['ch\_names'] and I listed in ['bads'] 28 out of the 53 that I do not want to use. The ones displayed in the error as overlapped are EOGl, EOGr, EOGV, EMGChin from which EMGChin is the only one contained in 'bads'. The code I am using is the following one: rawB0939=mne.io.read\_raw\_edf('B0939.edf',preload='data\_preload') rawB0939\_copy=rawB0939.copy() rawB0939.info['bads']=['AUX','ECG','Lage','Licht','Akku','Beweg.','EOGl:M1','EOGl:M2','EOGr:M1','C3:M2','C4:M1','Fz:M1','Oz:M1','EOGr:M2','F4:M1','O2:M1','F3:M2','O1:M2','Fz:M2','Oz:M2','Fp1:M1','Fp2:M1','T3:M1','T4:M1','P3:M1','P4:M1','F3:M1','STI 014'] rawB0939\_copy.info['bads']=['AUX','ECG','Lage','Licht','Akku','Beweg.','EOGl:M1','EOGl:M2','EOGr:M1','C3:M2','C4:M1','Fz:M1','Oz:M1','EOGr:M2','F4:M1','O2:M1','F3:M2','O1:M2','Fz:M2','Oz:M2','Fp1:M1','Fp2:M1','T3:M1','T4:M1','P3:M1','P4:M1','F3:M1','STI 014'] rawB0939\_copy.crop(tmin=4936,tmax=5300) rawB0939\_copy.plot() # DOWNSAMPLING AND FILTERING CROPPED DATA # rawB0939\_copy.resample(100) # downsampling to 100 Hz ( performs LPF followed by decimation) rawB0939\_copy.filter(l\_freq=49.0,h\_freq=3.0) # to perform ICA # MONTAGE # rawB0939\_copy.set\_montage('standard\_1020') # 24 channels with positions established # ICA # method='fastica' ica=ICA(method=method) print(ica) ica.fit(rawB0939\_copy) print(ica) ica\_components=ica.get\_components() ica.plot\_components(ica\_components) ica.plot\_properties(rawB0939\_copy) Do you have some idea how to solve it? I am trying many things but I get errors through all the ways. Thanks a lot! El mi?., 16 ene. 2019 a las 16:22, Brunner, Clemens ( clemens.brunner at uni-graz.at) (\) escribi?: ---
**Author:** ![system](https://global.discourse-cdn.com/free1/uploads/mne/original/1X/85cc6bd2b69cb698a166dc6d880fb550510d0144.jpeg) [@system](https://mne.discourse.group/u/system)\ **Post date:** [January 17, 2019, 2:20pm UTC](https://mne.discourse.group/t/setting-up-channel-locations/1715/5 "2019-01-17T14:20:12Z")
External Email - Use Caution did you mark all channels that don't have a position as non EEG channels eg eog or misc? see set\_channel\_types method. HTH Alex ---
**Author:** ![system](https://global.discourse-cdn.com/free1/uploads/mne/original/1X/85cc6bd2b69cb698a166dc6d880fb550510d0144.jpeg) [@system](https://mne.discourse.group/u/system)\ **Post date:** [January 17, 2019, 5:42pm UTC](https://mne.discourse.group/t/setting-up-channel-locations/1715/6 "2019-01-17T17:42:15Z")
External Email - Use Caution Thank you!! Already working!! 🙂 El jue., 17 ene. 2019 a las 15:21, Alexandre Gramfort (\< alexandre.gramfort at [inria.fr](http://inria.fr)\>) escribi?: