data preprocessing

[oralb]

Cropbox seems to require a specific data format (i.e., units in column names; hyphens as a separator for date columns ). Although I can figure out this using examples or error messages, documentation would also be helpful. Where can I find the description to trim the data before importing data into Cropbox?

[tomyun]

As you mentioned, unitfy() function can take a DataFrame and assign measurement units or certain data types to its columns. When the name of column is in the form of "name_of_column (unit_or_type)", the unit_or_type part becomes subject to automatic unit/type assignment.

1. Here are some examples of handling units.

• "leaf_area (cm)" becomes "leaf_area" column with u"cm" unit, i.e. Quantity{Float64, ...}.
• "A_net (μmol/m^2/s)" becomes "A_net" column with u"μmol/m^2/s" unit.

2. In the case of type assignment, currently we only support one keyword :date.

• "observation (:date)" becomes "observation" column where date-formatted strings (e.g. "2022-11-26") are explicitly converted to Date type (e.g. Date(2022, 11, 26)) from Julia standard Dates module.
• FYI, no support for :datetime at the moment due to the complexity of time zone handling.

You may get a better idea how they are actually handled by looking at the code.