The QDP program

Quick and Dandy Plotter (QDP) is an interactive plotting and fitting program that reads ordinary ASCII files (called QDP files and have the extension ``.qdp'') and accepts various commands, either embedded in the file or entered at the PLT prompt within QDP. QDP was written by Allyn Tennant, originally at Cambridge, but developed at NASA Marshall Space Flight Center. Further information about QDP and its command syntax is made available via the WWW. QDP is part of the XANADU suite of software.