Classified STIC data used for function examples.
classified_df## `classified_df` A data frame with 1000 rows and 5 columns:
Date and time of measurement.
Raw uncalibrated conductivity recorded by STIC logger.
Temperature recorded by STIC logger.
Specific conductance calculated using `apply_calibration` function.
Classified STIC data created by `classify_wetdry` function.