Yahoo! Weather

YWEATHER(LOCATION) queries the Yahoo! Weather RSS feed for the specified location, and returns a struct containing the queried information.

The first input argument LOCATION can be one or more (U.S.) ZIP Codes or Location IDs. It can be a string, a vertical char array, or a vertical cell array of strings. To determine s Location ID, visit http://weather.yahoo.com/ and browse or search for the relevant location(s).

The second argument UNIT is optional, and can be either 'f' for Fahrenheit or 'c' for Celsius. It can be a single char string, a vertical char array, or a vertical cell array of strings. Yahoo! Weather's default value for UNIT is 'f'.

For more information about the RSS feeds and the data contained within them, visit http://developer.yahoo.com/weather/.

Data is acquired in XML format, after which it is converted into a struct using the xml_parse function. This function is available in the XML Toolbox by Marc Molinari on the MATLAB Central File Exchange (File ID 4278).

EXAMPLES:

Example 1: Using a ZIP Code.
yweather('10001') returns a 1x1 struct having fields (among others):

yweather_location.city: 'New York'
yweather_atmosphere.humidity: 50
yweather_astronomy.sunrise: '6:06 am'
item.yweather_condition.temp: 35
item.yweather_condition.date: 'Thu, 16 Mar 2006 2:51 am EST'

Example 2: Using a Location ID and (optional) unit.
yweather('UKXX0085','c') returns a 1x1 struct.

Example 3: Using a cell array of three locations.
yweather({'90028';'14850';'CAXX0301'}) returns a 3x1 struct.

Example 4: Using a char array of two ZIP Codes.
yweather(['56711';'33040']) returns a 2x1 struct.

Example 5: Using a cell array of three locations, in degrees Celsius.
yweather({'98381';'USCA0715';'04652'},'c') returns a 3x1 struct.

Example 6: Using a cell array of two locations, in variable units.
yweather({'27949';'UKXX0061'},{'f';'c'}) returns a 2x1 struct.

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