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Note that the annotation mnemonics in EDF+ files do not
in general match those used in WFDB-compatible annotation files, so that
it will usually be necessary to translate those that come from EDF+ file
before the text can be converted by wrann. For example, this command can
be used to extract annotations from foo.edf, change the EDF+ annotation
type "QRS" to the WFDB type "N", and then produce a WFDB-compatible annotation
file foo.edf.qrs:
rdedfann -r foo.edf | sed "s/QRS/ N" | wrann -r foo.edf -a qrs
It may be necessary to set and export the shell variable WFDB (see setwfdb(1) ).
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PhysioNetUpdated 17 December 2010