Dynamic Statistics n Fathom documents contain objects that represent various ways of looking at data. n The objects in the document are dynamically linked to one another. –If one object changes, the others are automatically updated n This makes Fathom an ideal environment for exploring data.
Fathom Documents n Fathom documents contain text, data, tables, graphs, and other objects that display and analyze data. n Fathom documents are created by adding objects to the Fathom Window.
The Fathom Window the Menu bar the Shelf the Fathom document
The Menu Bar and Shelf n The Menu bar provides access to actions that you may wish to carry out. n The Shelf provides access to objects that you may wish to add to your Fathom document. the Menu bar the Shelf
Adding a Data Collection n To add a Collection to your Fathom document, drag a Collection off the Shelf n The Collection is currently empty
Using Spreadsheet Data n To copy data from a spreadsheet 1. Open the spreadsheet. 2. Select all cells that contain data and column headings (CNTRL-A). 3. Copy (CNTRL-C) the cells.
Using Spreadsheet Data n Go to your Fathom document n Select the empty Collection in your document n Paste (Edit Paste Cases or CTRL-V) the data into the collection
Cases in Fathom n The individual “rows” of data in the spreadsheet are now “cases” in Fathom. n After pasting in data or importing, the Collection is now populated. Empty CollectionPopulated Collection Data Import
Inspecting Collections n Double clicking on a Collection launches the Inspector n The Inspector allows you to view and edit the data and add new attributes Double click to inspect
Attributes and Values n Attributes represent what types of data are shown in each case. –Each case has a value for each attribute –Generated data may have a formula. attributesvalues case number
Inspecting Cases n Dragging open a Collection will show each case as an individual icon. n Double click on a case to inspect it. Drag corner to see full collection Double click to inspect
Adding Tables n You can view your data like in a spreadsheet by using a Table object 1. Select the Collection 2. Drag a Table object off the Shelf and onto the document Table
Using Tables case click to add new attribute n Use Tables to view, edit, or create new cases and attributes n Tables provide a “spreadsheet” style view of the data collection name case numbers attributes
Creating an Empty Graph n To create a new Graph, simply drag a Graph object off the shelf and drop it into the document
Adding Data with Inspectors n Open an inspector on the Collection n Drag the attributes that you want to graph onto the axis n If only one attribute is dragged “count” is placed automatically onto the other axis
Adding Data with Tables n Create a Table for the Collection n Drag the columns that you want to graph onto the axis
Changing the Graph Type n When one attribute is plotted, the default graph is a “dot plot” n The graph type can be changed by clicking in the top right corner
Different Views of Data n Objects in Fathom are dynamically linked n Selecting a Case in one object will highlight it in all other related objects
Selecting data n A selected group in one graph will be highlighted in all graphs Click on one bar to see the same group in other graphs
Summarizing Data n Summary tables give a a good overview of key statistics (mean, standard deviation, etc.) –Drag a summary table off the shelf –Drag attributes onto the arrows to be displayed either as rows or columns