Google sheets script for a weather station chart
Requires a csv file in the same folder with this format (example): 23/01/2021 20:00,987,-3,94
The fields are 1) date and time 2) pressure 3) temperature 4) humidity
The code generates a user menu with choices to a) load CSV (the rows from this file are APPENDED to the existing rows) b) draw a chart with choice of time span