InterruptedTimeSeries.input_validation# InterruptedTimeSeries.input_validation(data, treatment_time, treatment_end_time=None)[source]# Validate the input data and model formula for correctness. Parameters: data (DataFrame) – The experiment data. treatment_time (int | float | Timestamp) – Start of the treatment period. treatment_end_time (int | float | Timestamp | None) – Optional end of the treatment period for three-period designs. Return type: None