Laser-based detection and predictive modeling of methane concentrations in cattle respiration

Summary
If you want to quickly check statistics and plot some profiles, go to MainProcessing_Statistics.m. The code is provided as is; you need to change the filePath to point to the folder containing your Database folder.

If you want to check the emission model results, check CorrectedModel.m

Database Description

This database contains records of methane (CH₄) gas emissions produced by cattle during the respiratory process. The data was collected using a Laser Methane Detector. Measurements were taken during five different field visits, and the corresponding data is stored in the Raw Data folder. Each field visit folder contains several meas_merged_n.csv files, which include information on burp events, reported as ppm emitted over time. Since a single meas_merged_n.csv file can include more than one burp event, a total of 97 events was recorded and labeled in the Event_limits_def.xlsx file.

The Event_limits_def file contains twelve columns. The first two columns, "Visit" and "Measurement", indicate the location of the tagged event. "Visit" refers to the name of the folder corresponding to the field visit where the meas_merged file is stored, while "Measurement" refers to the specific meas_merged file (identified by its number) that contains the event. The "ix_event" column indicates the event number within that file.

Each event was split into two parts: a primary sub-event and a secondary sub-event, which are specified in the "type_event" column. The "start" and "end" columns indicate the time (in seconds) during which the sub-event occurs. The next column corresponds to the number of event from 1 to 97. The next three columns refer to the cow’s "Animal's Position", "Mouth Position", and "Activity" at the time the measurement was taken. Finally, "Measurement Spot" and "Distance" describe where the laser was pointed and the distance between the laser and the measurement spot.