# plotting topomap for SSP projection **URL:** \ **Category:** Mailing List Archive (read-only)\ **Tags:** list-archive\ **Created:** [April 22, 2014, 5:38pm UTC](https://mne.discourse.group/t/plotting-topomap-for-ssp-projection/716 "2014-04-22T17:38:47Z")\ **Posts on this page:** 12\ **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:** [April 22, 2014, 5:38pm UTC](https://mne.discourse.group/t/plotting-topomap-for-ssp-projection/716/1 "2014-04-22T17:38:47Z")
Hi, I'm trying to plot topoplot of EOG/ECG SSP projections but I got some error messages about the layout I used. Here is what I originally used: layout = mne.layouts.read\_layout('Vectorview-all') mne.viz.plot\_projs\_topomap(EOGprojs, layout=layout) The error message is: RuntimeError: Cannot find a proper layout for projection planar-998--0.200-0.500-PCA-01 Then I tried something below and I still got the same error message: raw\_layout = mne.layouts.find\_layout(raw.info\<[http://raw.info/](http://raw.info/)\>, ch\_type = 'mag') mne.viz.plot\_projs\_topomap(EOGprojs, layout=raw\_layout) I thought it was because the channel names in my data didn't have the space between MEG and the sensor number but I got the same error message after I change the layout channel name to be the same as my raw file. Is there any obvious mistake I made that causes this error message? My mne version is below: Version 2.7.3 SVN revision 3268 Build date is Thu Jan 6 02:23:43 EST 2011 Thanks! Yuhan -------------- next part -------------- An HTML attachment was scrubbed... URL: [http://mail.nmr.mgh.harvard.edu/pipermail/mne\_analysis/attachments/20140422/03810619/attachment.html](http://mail.nmr.mgh.harvard.edu/pipermail/mne_analysis/attachments/20140422/03810619/attachment.html) ---
**Author:** ![system](https://global.discourse-cdn.com/free1/uploads/mne/original/1X/85cc6bd2b69cb698a166dc6d880fb550510d0144.jpeg) [@system](https://mne.discourse.group/u/system)\ **Post date:** [April 22, 2014, 7:34pm UTC](https://mne.discourse.group/t/plotting-topomap-for-ssp-projection/716/2 "2014-04-22T19:34:28Z")
hi, can you paste the list of your channel names? print raw.ch\_names on what system did you acquire your data? just a note Version 2.7.3 is unrelated to the MNE-Python version. Version 2.7.3 is for the unix commands. Alex ---
**Author:** ![system](https://global.discourse-cdn.com/free1/uploads/mne/original/1X/85cc6bd2b69cb698a166dc6d880fb550510d0144.jpeg) [@system](https://mne.discourse.group/u/system)\ **Post date:** [April 22, 2014, 7:48pm UTC](https://mne.discourse.group/t/plotting-topomap-for-ssp-projection/716/3 "2014-04-22T19:48:29Z")
The data was acquired on Elekta 306. Below are the channel names. Thanks. \_\_\_\_\_\_\_In [23]: print raw.ch\_names ['MEG0113', 'MEG0112', 'MEG0111', 'MEG0122', 'MEG0123', 'MEG0121', 'MEG0132', 'MEG0133', 'MEG0131', 'MEG0143', 'MEG0142', 'MEG0141', 'MEG0213', 'MEG0212', 'MEG0211', 'MEG0222', 'MEG0223', 'MEG0221', 'MEG0232', 'MEG0233', 'MEG0231', 'MEG0243', 'MEG0242', 'MEG0241', 'MEG0313', 'MEG0312', 'MEG0311', 'MEG0322', 'MEG0323', 'MEG0321', 'MEG0333', 'MEG0332', 'MEG0331', 'MEG0343', 'MEG0342', 'MEG0341', 'MEG0413', 'MEG0412', 'MEG0411', 'MEG0422', 'MEG0423', 'MEG0421', 'MEG0432', 'MEG0433', 'MEG0431', 'MEG0443', 'MEG0442', 'MEG0441', 'MEG0513', 'MEG0512', 'MEG0511', 'MEG0523', 'MEG0522', 'MEG0521', 'MEG0532', 'MEG0533', 'MEG0531', 'MEG0542', 'MEG0543', 'MEG0541', 'MEG0613', 'MEG0612', 'MEG0611', 'MEG0622', 'MEG0623', 'MEG0621', 'MEG0633', 'MEG0632', 'MEG0631', 'MEG0642', 'MEG0643', 'MEG0641', 'MEG0713', 'MEG0712', 'MEG0711', 'MEG0723', 'MEG0722', 'MEG0721', 'MEG0733', 'MEG0732', 'MEG0731', 'MEG0743', 'MEG0742', 'MEG0741', 'MEG0813', 'MEG0812', 'MEG0811', 'MEG0822', 'MEG0823', 'MEG0821', 'MEG0913', 'MEG0912', 'MEG0911', 'MEG0923', 'MEG0922', 'MEG0921', 'MEG0932', 'MEG0933', 'MEG0931', 'MEG0942', 'MEG0943', 'MEG0941', 'MEG1013', 'MEG1012', 'MEG1011', 'MEG1023', 'MEG1022', 'MEG1021', 'MEG1032', 'MEG1033', 'MEG1031', 'MEG1043', 'MEG1042', 'MEG1041', 'MEG1112', 'MEG1113', 'MEG1111', 'MEG1123', 'MEG1122', 'MEG1121', 'MEG1133', 'MEG1132', 'MEG1131', 'MEG1142', 'MEG1143', 'MEG1141', 'MEG1213', 'MEG1212', 'MEG1211', 'MEG1223', 'MEG1222', 'MEG1221', 'MEG1232', 'MEG1233', 'MEG1231', 'MEG1243', 'MEG1242', 'MEG1241', 'MEG1312', 'MEG1313', 'MEG1311', 'MEG1323', 'MEG1322', 'MEG1321', 'MEG1333', 'MEG1332', 'MEG1331', 'MEG1342', 'MEG1343', 'MEG1341', 'MEG1412', 'MEG1413', 'MEG1411', 'MEG1423', 'MEG1422', 'MEG1421', 'MEG1433', 'MEG1432', 'MEG1431', 'MEG1442', 'MEG1443', 'MEG1441', 'MEG1512', 'MEG1513', 'MEG1511', 'MEG1522', 'MEG1523', 'MEG1521', 'MEG1533', 'MEG1532', 'MEG1531', 'MEG1543', 'MEG1542', 'MEG1541', 'MEG1613', 'MEG1612', 'MEG1611', 'MEG1622', 'MEG1623', 'MEG1621', 'MEG1632', 'MEG1633', 'MEG1631', 'MEG1643', 'MEG1642', 'MEG1641', 'MEG1713', 'MEG1712', 'MEG1711', 'MEG1722', 'MEG1723', 'MEG1721', 'MEG1732', 'MEG1733', 'MEG1731', 'MEG1743', 'MEG1742', 'MEG1741', 'MEG1813', 'MEG1812', 'MEG1811', 'MEG1822', 'MEG1823', 'MEG1821', 'MEG1832', 'MEG1833', 'MEG1831', 'MEG1843', 'MEG1842', 'MEG1841', 'MEG1912', 'MEG1913', 'MEG1911', 'MEG1923', 'MEG1922', 'MEG1921', 'MEG1932', 'MEG1933', 'MEG1931', 'MEG1943', 'MEG1942', 'MEG1941', 'MEG2013', 'MEG2012', 'MEG2011', 'MEG2023', 'MEG2022', 'MEG2021', 'MEG2032', 'MEG2033', 'MEG2031', 'MEG2042', 'MEG2043', 'MEG2041', 'MEG2113', 'MEG2112', 'MEG2111', 'MEG2122', 'MEG2123', 'MEG2121', 'MEG2133', 'MEG2132', 'MEG2131', 'MEG2143', 'MEG2142', 'MEG2141', 'MEG2212', 'MEG2213', 'MEG2211', 'MEG2223', 'MEG2222', 'MEG2221', 'MEG2233', 'MEG2232', 'MEG2231', 'MEG2242', 'MEG2243', 'MEG2241', 'MEG2312', 'MEG2313', 'MEG2311', 'MEG2323', 'MEG2322', 'MEG2321', 'MEG2332', 'MEG2333', 'MEG2331', 'MEG2343', 'MEG2342', 'MEG2341', 'MEG2412', 'MEG2413', 'MEG2411', 'MEG2423', 'MEG2422', 'MEG2421', 'MEG2433', 'MEG2432', 'MEG2431', 'MEG2442', 'MEG2443', 'MEG2441', 'MEG2512', 'MEG2513', 'MEG2511', 'MEG2522', 'MEG2523', 'MEG2521', 'MEG2533', 'MEG2532', 'MEG2531', 'MEG2543', 'MEG2542', 'MEG2541', 'MEG2612', 'MEG2613', 'MEG2611', 'MEG2623', 'MEG2622', 'MEG2621', 'MEG2633', 'MEG2632', 'MEG2631', 'MEG2642', 'MEG2643', 'MEG2641', 'EEG061', 'EEG062', 'STI101', 'STI201', 'STI301', 'MISC201', 'MISC202', 'MISC203', 'MISC204', 'MISC205', 'MISC206', 'MISC301', 'MISC302', 'MISC303', 'MISC304', 'MISC305', 'MISC306', 'CHPI001', 'CHPI002', 'CHPI003', 'CHPI004', 'CHPI005', 'CHPI006', 'CHPI007', 'CHPI008', 'CHPI009'] ---
**Author:** ![system](https://global.discourse-cdn.com/free1/uploads/mne/original/1X/85cc6bd2b69cb698a166dc6d880fb550510d0144.jpeg) [@system](https://mne.discourse.group/u/system)\ **Post date:** [April 22, 2014, 8:06pm UTC](https://mne.discourse.group/t/plotting-topomap-for-ssp-projection/716/4 "2014-04-22T20:06:20Z")
so it should work... can you share the -proj.fif file that contains the projections to plot? A ---
**Author:** ![system](https://global.discourse-cdn.com/free1/uploads/mne/original/1X/85cc6bd2b69cb698a166dc6d880fb550510d0144.jpeg) [@system](https://mne.discourse.group/u/system)\ **Post date:** [April 22, 2014, 8:23pm UTC](https://mne.discourse.group/t/plotting-topomap-for-ssp-projection/716/5 "2014-04-22T20:23:44Z")
Hi Alex, Attached is the -proj.fif file. Thank you. Yuhan ---
**Author:** ![system](https://global.discourse-cdn.com/free1/uploads/mne/original/1X/85cc6bd2b69cb698a166dc6d880fb550510d0144.jpeg) [@system](https://mne.discourse.group/u/system)\ **Post date:** [April 23, 2014, 9:01am UTC](https://mne.discourse.group/t/plotting-topomap-for-ssp-projection/716/6 "2014-04-23T09:01:44Z")
hi, I could reproduce the bug. I opened an issue. [https://github.com/mne-tools/mne-python/issues/1235](https://github.com/mne-tools/mne-python/issues/1235) follow the issue to know when we fix it. thanks Best, Alex ---
**Author:** ![system](https://global.discourse-cdn.com/free1/uploads/mne/original/1X/85cc6bd2b69cb698a166dc6d880fb550510d0144.jpeg) [@system](https://mne.discourse.group/u/system)\ **Post date:** [April 23, 2014, 11:14am UTC](https://mne.discourse.group/t/plotting-topomap-for-ssp-projection/716/7 "2014-04-23T11:14:50Z")
Yuhan, could your try using the mne.find\_layout function? It should recognize the correct layout and automatically corrects the naming of the channels. Old Neuromag systems tends to have whitespaces in the names which can lead to problems. It seems this is the case for your system. Best, Denis ---
**Author:** ![system](https://global.discourse-cdn.com/free1/uploads/mne/original/1X/85cc6bd2b69cb698a166dc6d880fb550510d0144.jpeg) [@system](https://mne.discourse.group/u/system)\ **Post date:** [April 23, 2014, 1:32pm UTC](https://mne.discourse.group/t/plotting-topomap-for-ssp-projection/716/8 "2014-04-23T13:32:22Z")
Hi Yuhan, I just realized you in fact already tried find\_layout. Sorry for the confusion. We'll meanwhile try to understand what's the exact issue and keep you posted. Best, Denis ---
**Author:** ![system](https://global.discourse-cdn.com/free1/uploads/mne/original/1X/85cc6bd2b69cb698a166dc6d880fb550510d0144.jpeg) [@system](https://mne.discourse.group/u/system)\ **Post date:** [April 26, 2014, 1:44pm UTC](https://mne.discourse.group/t/plotting-topomap-for-ssp-projection/716/9 "2014-04-26T13:44:18Z")
hi Yuhan, can you share a raw.fif file containing the measurement info you used with mne.find\_layout? thanks Alex ---
**Author:** ![system](https://global.discourse-cdn.com/free1/uploads/mne/original/1X/85cc6bd2b69cb698a166dc6d880fb550510d0144.jpeg) [@system](https://mne.discourse.group/u/system)\ **Post date:** [April 26, 2014, 1:52pm UTC](https://mne.discourse.group/t/plotting-topomap-for-ssp-projection/716/10 "2014-04-26T13:52:23Z")
With the recent development version you could also just save the info: `mne.fiff.write_info('my_info.fif', raw.info)` -------------- next part -------------- An HTML attachment was scrubbed... URL: [http://mail.nmr.mgh.harvard.edu/pipermail/mne\_analysis/attachments/20140426/d9f9fee7/attachment.html](http://mail.nmr.mgh.harvard.edu/pipermail/mne_analysis/attachments/20140426/d9f9fee7/attachment.html) ---
**Author:** ![system](https://global.discourse-cdn.com/free1/uploads/mne/original/1X/85cc6bd2b69cb698a166dc6d880fb550510d0144.jpeg) [@system](https://mne.discourse.group/u/system)\ **Post date:** [April 27, 2014, 1:53am UTC](https://mne.discourse.group/t/plotting-topomap-for-ssp-projection/716/11 "2014-04-27T01:53:51Z")
Hi Alex, What's the best way for me to share or upload the raw.fif to you? Thanks, Yuhan ---
**Author:** ![system](https://global.discourse-cdn.com/free1/uploads/mne/original/1X/85cc6bd2b69cb698a166dc6d880fb550510d0144.jpeg) [@system](https://mne.discourse.group/u/system)\ **Post date:** [April 28, 2014, 5:17pm UTC](https://mne.discourse.group/t/plotting-topomap-for-ssp-projection/716/12 "2014-04-28T17:17:06Z")
hi, at the end of the day, there was no bug if you use find\_layout this way: import mne fname\_raw = 'T110\_raw\_crop.fif' raw = mne.fiff.Raw(fname\_raw) layout = mne.layouts.find\_layout(raw.info) #, ch\_type='grad') EOGprojs = mne.read\_proj('T110\_012413\_face\_loc\_autobad9\_tsss\_mc\_EOG\_auto-proj.fif') mne.viz.plot\_projs\_topomap(EOGprojs, layout=layout) if you use : layout = mne.layouts.find\_layout(raw.info, ch\_type='grad') then it fails to display the mag topo as expected. take home message use find\_layout Best, Alex