filename=strcat(pwd,'/',num2str(site(i))); % file to be read, which is same as the file uploaded
S = fileread(filename);
place_info = regexp(S, 'Latitude\s+(?<lat>[^ ,]+),\s*\S+\s*Longitude\s+(?<long>\S+)\s*\S+\s*(?<proj>\w+)', 'names', 'once');
periods_info = regexp(S, '''begin_date''[^\d]*(?<begin_date>\d+-\d+(-\d+)?).*?end_date[^\d]*(?<end_date>\d+-\d+(-\d+)?).*?sites_selection_links\W*(?<stats_type>[^<]+)', 'names');
other_info = regexp(S, 'site_no=\d+">(?<stats_type>.*?)</a>.*?''begin_date''[^d]*?(?<begin_date>\d+(-\d+(-\d+)?)?).*?end_date[^\d]*?(?<end_date>\d+(-\d+(-\d+)?)?)', 'names');
combined_info = [periods_info, other_info];
Now:
place_info is a struct with fields 'lat', 'long', and 'proj' reflecting latitude, longitude, and projection. The lat and long are in the form they were stored in the file, so they may have a ° in them, corresponding to the ° symbol.
combined_info is a struct with fields begin_date, end_date, and stats_type . stats_type is the information about what the period is describing. In the sample data file those are
'Daily Statistics' 'Monthly Statistics' 'Annual Statistics' 'Current / Historical Observations' 'Peak streamflow' 'Field measurements' 'Field/Lab water-quality samples' and 'Water-Year Summary'
