Do you have a plan to update the package and to add it to the registry?

[likanzhan]

It is a package that I looked for a long time. It is very helpful to deal with eyelink data with Julia. Thanks.

[grero]

I'm glad you find it useful. I have been using it for a couple of years to load data from various experiments, and I guess I hadn't really considered that it would be used by anyone else. As a result, I haven't been too careful in how the data is presented to user altering being loaded. If you have any suggestions on how to improve usability, I'd be happy to make changes.

[likanzhan]

Thanks, you have mentioned one thing what I'm thinking.
(1) Add some show methods would be much better.
(2) Also is it possible to add the edfapi locally, so that the package would be more portable ? (i.e., we do not need to install the Eyelink api)?
(3) Could you also export the blink events information? I think this information is important, especially if we want to compare the obtained eye tracking data with EEG data.

[grero]

Regarding point (2), since SR-Research as far as I know has not released a description of the EDF file format, it's going to be very hard to bypass the C-API. It would mean rewriting all the low-level functions in Julia.

[grero]

Regarding (1), I've added some barebones show methods here #13

[grero]

I just merged #14 which adds parsing of start/end blink events.

[likanzhan]

Thank you very much.

Do you think is it better if the functions are split into two levels:

(1) some low levels functions that simply mimic the c functions, which can be used and extended by high level functions.

(2) some high level functions that can be used and extended by the users.

Thanks

[grero]

I think this is a good idea. I'm not really sure what low-level functions would be useful, though? I find that most of the time I just want to get edf data into a julia session, in which case just running Eyelink.load("somefile.edf") does the trick.
Do you have any suggestions of what low-level functions might be useful to access directly?

[likanzhan]

I think it depends on whether you are planning to register it as a package for others to use. If it is, I think it is better to include all the functions defined in EDF Access C API user manual. I am no expert on either C, Julia, or EyeLink. And I mainly use the so called visual world paradigm in eye-tracking technique. And I find all the functions are potentially useful. Thanks.