A chart or graph gives an overview of the data variation in short and comprehensive way. It also reduces the time to grab the actual data fluctuations or variations and is available in visual form.
It is a diagram displaying the relationship between numbers or amounts. Common graphs use bars, lines, or parts of a circle to display data. Charts and Graphs are mainly used for statistics purpose and play a critical role in many applications.
Here are few tools which can build pretty good looking custom charts or graphs with defined statistics:
Jump to your favourite topic
liquidx.net Stats Page
Real data with a bit of interactivity
Basic Axis Example
Basic Bar Example
Basic Legend Example
Mouse Tracking Support Example
Mouse Zoom Support Example
Negative Value Support Example
Click Event Hook Example
JSON Data Example
ProtoChart is a new opensource library to plot pretty charts with examples included
ProtoChart is a new opensource library using Prototype and Canvas to create good looking charts. This library is highly motivated by Flot, Flotr and PlotKit libraries.