Let's have a look at the toolbar:
Types of graph
There are 3 types: line, bar and pie. We can switch between them using these buttons:

. Notice that for pie graph, only one column of data is displayed.
Export your graph into image formats
Pandora support JPG and PNG formats. Click on

to check this feature.
Double Y axes
Bug detected!!! Wait until we fix it.
Zoom
Lef-click and drag the mouse to the right to zoom. Dragging to the left will give you a new rectangle which help "screw" your graph vertically or horizontally.
Right-click to reset the view.
Appearence
Labels, axes, line and dot types can be changed directly by double-clicking on these objects.
Link to Spreadsheet
The data can be open in
Jeks by clicking on

.
Reload data
Anytime your graph is messed up,

will save you by reloading the data window.
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HoaNguyen - 28 Aug 2006