Added high-level functions

[skjerns]

I thought it might be useful to add some high-level functions for convenience.

I've created the following functions:

write_edf(filename, data)
read_edf(filename)

drop_channels(filename, to_drop) # drops channels or keeps only a selected few
anonymize_edf(filename) # remove all personalized data from a header
rename_channels # renames channels in an EDF file

# helper functions
make_header()  # create a header dictionary
make_signal_header() # create a signal_header

@holgern Let me know if you think this could be useful. Then I'll create the tests and integrate the imports into the package.

[codecov]

Codecov Report

Merging #65 into master will increase coverage by 2.21%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master      #65      +/-   ##
==========================================
+ Coverage   10.59%   12.81%   +2.21%     
==========================================
  Files           6        7       +1     
  Lines        3274     3520     +246     
  Branches       82      136      +54     
==========================================
+ Hits          347      451     +104     
- Misses       2886     3026     +140     
- Partials       41       43       +2     

Impacted Files	Coverage Δ
pyedflib/highlevel.py	38.77% <0.00%> (ø)
pyedflib/edfreader.py	69.14% <0.00%> (+1.14%)	⬆️
pyedflib/edfwriter.py	76.32% <0.00%> (+2.12%)	⬆️

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[skjerns]

(note: need to add digitial for non-same sampling frequency)

[skjerns]

@holgern do you think it's worth pursuing this?

btw: some of the added dependencies can be dropped or made optional.

[holgern]

@skjerns Thanks for your work. I would like to have the added dependencies dropped or made optional. They can be added to the test requirements but should not be required to install the package itself.

[skjerns]

alright.. I removed the deps, they should not really be needed anyway.

I'll work on some of the functions and implement some tests, then we can merge (if you're okay with the code.)

[skjerns]

@holgern I added the docstrings and tests. Can you see if this can be merged? I'll write some more documentation then.

btw, I would volunteer to take up part of maintenance of the repository, if you would think that would be an idea.

[holgern]

Great work, it looks good now. This will simplify the usage of pyedflib.

I think I have to create a new github organization first, before I can add maintainer.

[skjerns]

@holgern I think it should work without an organiztion, you just have to click on the settings above and under manage access add me as collobator

[holgern]

@skjerns You were right, I invited you as collaborator.