showAvailableColumns: Shows all the available Weather Data Columns
Description
Displays all the columns that are available in the website, for the given
station, and date range. Useful when only a subset of the columns are
desired. Those can be specfied using the custom_columns vector.
Note: There are different columns available for summarized vs. detailed
data. Be sure toturn the opt_detailed flag to be TRUE if multiple
records per day is desired.
showAvailableColumns("NRT", "2014-04-04")
#if you want to see the columns for the *detailed* weather, turn on opt_detailedshowAvailableColumns("CDG", "2013-12-12", opt_detailed=T)