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Using Graphs

Viewing your weather data through the prism of a graph brings considerable analytical value; it allows you to view trends in weather patterns, compare one property to another, and analyze the flow of past weather events. WeatherSnoop 3 brings the power of graphing to your Macʼ’s desktop with full color plots that can display multiple weather properties simultaneously and span arbitrary dates and times.

Setting up a graph is easy and can be done several ways:

  1. From the View menu, select the Graph menu item and then follow the submenu to graph the weather property of your choice.
  2. Right-click on any gauge or LED indicator from one of the instrument windows and select the Show Graph menu item from the contextual menu. Upon selection, a graph window appears with the date range set to the current day's span.
  3. Right-click on one or more properties in the Weather Properties window. If multiple properties are selected, you can choose for all properties to be graphed in a single window or separate windows.

 As graph windows are created, they are generically named in ascending order as “Graph 1”, “Graph 2”, etc. Graph names are recycled as windows are closed.

Every graph window is composed of three major sections:

  1. Top area - the date range cluster: The date range cluster allows you to select the start and end date for the graph. Use the stepper buttons or simply type in the date and time to change the range. You can also utilize the Quick Dates popup button to quickly and easily select one of several common date ranges. Once the dates have been set, simply click on the Refresh button and the graph will refresh its data to the new date range.
  2. Middle area - the graph: The graph takes up the middle of the window and is where the values of the selected weather properties are plotted. You can hover your mouse over this area and a hint will appear indicating the weather property and its associated color in the graph.
  3. Bottom area - the property details table: This table shows the names of the weather properties in the graph as well as other information. At a glance, you can view the property details table to see which weather properties are represented, along with the unit and the corresponding graph color. Additionally, the minimum, maximum, and average values for date range are also indicated, as well as the number of data values that compose the graph itself.

If you so choose, you can click on the disclosure triangle above the property details table in order to hide the table and make more room for the graph.

Graphing Multiple Properties

WeatherSnoop 3 makes it easy for you to graph additional weather properties on the same graph for comparative analysis. There are several ways to do this:

  1. Right-click on an instrument and select the Add To Graph menu option. A submenu will appear with a list of all of the current graph windows. Simply select the destination graph window, and the weather property will be added to that graph. The graph will also be refreshed to incorporate the historical data for that weather property.
  2. Right-click on one or more selected weather properties in the Weather Properties table. A menu will appear where you can opt to show all properties in a single graph windows, in separate graph windows, or add all properties to an existing graph window.
  3. Drag one or more selected weather properties from the Weather Properties table onto the graph. To do this, bring up the Weather Properties window, then click on a weather property and drag it to the graph.

Removing Properties from a Graph

You can remove one or more weather properties from the graph by clicking on the property in the property details table and dragging it out of the graph window. The graph will then be refreshed to show the values of the remaining weather properties.

Next Steps

There are times when you want to view your archived data as numbers instead of graphs, and even change a thing or two. That's a job for the Custodian.

using_graphs.txt · Last modified: 2015/08/01 11:06 (external edit)