20-Oct-2024 14:57:58 brc_data_test(): MATLAB/Octave version 6.4.0 Generate data for the billion record challenge. Reading data from "brc_data.csv" Number of weather stations is 413. Run time was 0.00977302 seconds. Observations written to "city_obs.csv" Observations written to "temp_obs.csv" Number of observations is 100000. brc_data_test(): Normal end of execution. 20-Oct-2024 14:58:00