ENH: read EGI MFF channelStatus into raw.info["bads"] - #14156
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PragnyaKhandelwal wants to merge 2 commits into
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ENH: read EGI MFF channelStatus into raw.info["bads"]#14156PragnyaKhandelwal wants to merge 2 commits into
channelStatus into raw.info["bads"]#14156PragnyaKhandelwal wants to merge 2 commits into
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When categories.xml is present in an MFF directory, collect the union of all channels marked exclusion="badChannels" across every category segment and populate raw.info["bads"] with their MNE channel names.
PragnyaKhandelwal
marked this pull request as ready for review
August 13, 2026 20:16
PragnyaKhandelwal
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agramfort,
drammock and
larsoner
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August 13, 2026 20:16
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Reference issue (if any)
Part of #13926 (GSoC 2026 meta-issue, Phase 1).
What does this implement/fix?
EGI NetStation marks bad channels per recording epoch inside
categories.xmlusing<channelStatus>elements withexclusion="badChannels". Previously,read_raw_egiignored this file entirely and always returnedraw.info["bads"] == [].This PR adds a helper
_read_channel_status_badsthat:categories.xmlexists in the MFF directory (gracefully skips if absent or unparseable)CategoriesXML class to iterate over every category and segmentexclusion="badChannels"across all segments (both EEGsignalBin=1and PNSsignalBin=2)raw.info["bads"]A test is added that copies an existing test MFF file to a temp directory, injects a minimal
categories.xmlwith two EEG channels marked bad, reads the file, and asserts the bads list is set correctly.Additional information
categories.xmlis absent in most of the existing test MFF files (it is only present intest_egi_evoked.mff, which is an averaged file handled byread_evokeds_mff). The new test therefore constructs a minimalcategories.xmlin a temp copy of the paused multi-epoch test file to exercise the raw reader path.All 26 EGI tests pass.