Here are some examples of NPlot in action. C# code to create all of these example plots is included with the distribution.
Click on each image for a full size view.
Example candelplot, filled region, line plot, datetime axes.
Example line plot with custom colours.
Example using multiple y axes, dashed line plot, histogram plot, custom ticks
a live web example can be viewed here
If you have used nplot to generate a nice looking plot, get them ready - the examples page will soon allow user uploads!