1. Download the dataset baseball.data.
2. sh the file to unbundle it. This will extract three files: data.des.form, hitter.final, pitcher.final, and team.final.
3. Create an idl program called vis_hitter.pro to allow the user visually explore the dataset hitter.final.
Note: the data set contains nominal as well as numeric data.
Suggestions: Consider allowing the user to select subsets of variables. Consider 2-D as well as 3-D plots and rotation around axis.
Explore idl documentation ( type idlhelp from the command line or click on help from development environment idlde) for built in functions and routines that will make your life easy.