dqa.tasks.transformations.CreateIndex

class dqa.tasks.transformations.CreateIndex(association_dataset: str, association_machine: str = 'M0', **kwargs)

Replaces entries (e.g. large integers or strings) by indices and creates a global index association table.

The entries of all data rows specified by the input_dataset, input_machine, input_name parameters are replaced by global indices. Equal entries will result in equal indices. The associations between the indices and the values are stored in a separate table.

Parameters:

• association_dataset (str) – The name of the dataset that should contain the association table.

• association_machine (str, default='M0') – The name of the machine in which the association table is stored.

Methods

finish()

Can perform actions that are required to clean up after the task has finished, e.g. close network connections etc.

in_out_default
input_output_dataset
input_output_machine
input_output_mode
input_output_name
log
modify_data_row
modify_dataset
modify_dataset_dict
modify_machine
modify_measurement
set_logging_level
transfer_metadata