Review and comments data dictionary

[fkiraly]

Short review of the data dictionary as current in
https://github.com/RobotPsychologist/bg_control/blob/main/data/data_dictionary.md

I have two main comments:

• the dictionary describes only the column names, but not the full contents or context of the dataset, e.g., the object it describes or what rows mean, what the files are
• there is possibly a separate extraction process which might be worth to report as well, but perhaps best done in a second step after a good description of the individual extracts are available.
  • this might be important in particular for the purpose of model building, e.g., to understand the "full" data set for the purpose of creating a simulator that produces data of the same type

For convenience, I have added a link to a "data dictionary writing guide" I created a while ago, here:

https://github.com/sktime/datadict-howto

Side note: There is the raw data and the processed data. If we would expect most analyses to start at the processed data, it might be worth writing clean data dictionaries for both data batches.

[andytubeee]

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