DbAccess: Interactive Statistics and Graphics for Plasma Physics Databases
Authors: W. Davis and D. Mastrovito
Date of PPPL Report: October 2003
Presented at: the 4th IAEA Technical Meeting on Control, Data Acquisition, and Remote Participation for Fusion Research, 21-23 July 2003, San Diego, California. Proceedings to be published by Fusion Engineering and Design.
DbAccess is an X-windows application, written in IDL®, meeting many specialized statistical and graphical needs of NSTX [National Spherical Torus Experiment] plasma physicists, such as regression statistics and the analysis of variance. Flexible "views" and "joins," which include options for complex SQL expressions, facilitate mixing data from different database tables. General Atomics Plot Objects add extensive graphical and interactive capabilities. An example is included for plasma confinement-time scaling analysis using a multiple linear regression least-squares power fit.