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Guest Observer Facilities & Science Centers Select One AGILE ASCA Astro-H BeppoSAX COBE CGRO Chandra EUVE Fermi (formerly GLAST) GALEX GEMS HETE-2 INTEGRAL ROSAT RXTE Suzaku Swift WMAP XMM-Newton NASA Archives Select One ADS AstroGravS EOSDIS HORIZONS IRSA Keck Archive LAMBDA MAST NExScI (formerly Michelson) NED NSSDC NStED PDS SDAC SPDF Spitzer Science Center HEASARC Tip: View all tips Next: Introduction Up: Title Page Previous: Acknowledgements Contents Title Page Acknowledgements Introduction Overview Definitions Syntax Basics QDP Files Plot the File Rescaling Making a Hardcopy Aesthetics Labels Vertical Plots Colors, Lines, and Markers Log Scale Fitting Errors Fitting Parameter Uncertainties Miscellaneous PLT Command Files Version Control Fortran interface Programming PLT Subroutine RDQDP Subroutine PLT The QDP program The DEMO program A user function COD Introduction Interactive mode Colon Definitions COD Files Other Stack-Oriented Languages COD Command Summary * + +LOOP +STO - . / /MOD 0< 0= 0> 1+ 1- 1/ 2+ 2- : ; < = > ? ?Dup A2tn ABOrt ABS ACos ALog ASin ATan BEGIN COS DDms DEPth DMsd DRop DTor DUP ELSE EXIT EXP FOR HCos HSin HTan I IF INT J LEAVE LN LOG LOOP MAX MIN MOD NEG NInt NOT OVer PI PICK RCL REPEAT ROLL ROT RTod SIN SQrt STO SWap TAN THEN TSig UNTIL VAR WHILE X ^ PLT Command Summary CLear COlor CONtour CQuit CSize Device Error EXit Fit FNy FOnt FReeze GAp Grid Hardcopy HElp Imodel LAbel LIne LOCation LOg LStyle LWidth MArker MOdel Newpar Plot PRompt Rescale SCr SHow SKip STatistics THaw Time Uncertain UPper VErsion Viewport WData WEnviron WHead WIndow WModel Xaxis Yaxis $ @ QDP Command Summary READ Serr READ Terr Installation Guide XANADU VMS Instructions SUN UNIX Instructions NeXT NeXTStep Instructions MS DOS Instructions Portability Relation to PGPLOT Directory Structure Porting to other systems Porting TERMIO software Creating a new SYS.xxx routine Compile and link the QDP program Sample Plots and QDP Files About this document ... Web Page Maintained by: Dr. Lawrence E. Brown elwin@redshift.gsfc.nasa.gov