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How can I read edf data using Python? I want to analyze data of a edf file, but I cannot read it using pyEDFlib. It threw the error OSError: The file is discontinous and cannot be read and I'm not sure why.
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EDF files are the primary file type associated with Edificius and is only supported by Edificius. You can open an EDF file with Edificius by selecting File → Open. If you receive an EDF file and do not have access to Edificius, you can download and install the trial of Edificius from their website to open the file.
pyEDFlib is a python library to read/write EDF+/BDF+ files based on EDFlib. EDF means European Data Format and was firstly published Kemp1992. In 2003, an improved version of the file protocol named EDF+ has been published and can be found at Kemp2003. The EDF/EDF+ format saves all data with 16 Bit.
European Data Format (EDF) is a standard file format designed for exchange and storage of medical time series. Being an open and non-proprietary format, EDF(+) is commonly used to archive, exchange and analyse data from commercial devices in a format that is independent of the acquisition system.
I assume that your data are biological time-series like EEG, is this correct? If so, you can use the MNE library.
You have to install it first. Since it is not a standard library, take a look here. Then, you can use the read_raw_edf() method.
For example:
import mne
file = "my_path\\my_file.edf"
data = mne.io.read_raw_edf(file)
raw_data = data.get_data()
# you can get the metadata included in the file and a list of all channels:
info = data.info
channels = data.ch_names
See documentation in the links above for other properties of the data object
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