ehrml 1.0.3

index

The index to write the value (or in the case of any one-hot field, to start writing values) in the numpy array.

missing_flag_index

The index to write a one to if the data is missing (pre-imputation) in the numpy array. Do not set if no such missing data flag is desired for this field.

rwb_src

The value used to represent the value for all observation lists. Also, the field name associated with the “flat” data source, without any time suffix.

api_parent

The key in the layered data which contains relevant data for this field.

api_time_src

Which field in the layered data contains a reference to datetime for this observation.

api_src

Regarding the layered data, either the direct access field for each item in the list under api_parent, or the desired value of api_by.

api_by

If a field in layered data is not direct access, this is the field under api_parent which contains the name matching api_src. Do not set for direct access values.

api_from

If a field in layered data is not direct access, this is the field under api_parent which contains the value. Do not set for direct access values.

transformation

The name of a transformation or encoding to be executed on this field.

one_hot_vals

An array of values corresponding to a one hot encoding for this field. Different for each encoding, unused for numerical transformations.

mean

For numeric transformations, the precomputed mean.

std

For numeric transformations, the precomputed standard deviation.

min

For numeric transformations, replace any value lower than this value with this value. Also used in some transformations.

max

For numeric transformations, replace any value higher than this value with this value. Also used in some transformations.