GGobi is an open source visualization program for exploring high-dimensional data. It provides highly dynamic and interactive graphics such as tours, as well as familiar graphics such as the scatterplot, barchart and parallel coordinates plots. Plots are interactive and linked with brushing and identification. It is based on the previous XGobi, and has a nice GUI developed with GTK. GGobi can: <ul> <li>Draw dotplots and scatterplots, barcharts, spineplots and histograms, parallel coordinate plots, scatterplot matrices</li> <li>Link data points and lines between plots using persistent or transient brushing, and identification</li> <li>Pan and zoom</li> <li>Rotate data in 3D, and tour high-dimensional data using sequences of 1D, 2D and 2x1D projections augmented by manual control and automatic projection pursuit guidance</li> <li>Acts as a high-dimensional drawing tool, by adding, moving, and drawing lines between points.</li> <li>Connects with R to perform statistical analyses</li> <li>Can be extended using modular plugins</li> </ul> GGobi is available for the Linux, Mac OS X and Windows platforms.