Asymmetric Errors

   ;--------------------------------------------------
   ;         TXT2AST demo file - 1 dimensional
   ;           with x-axis asymmetric errors
   ;--------------------------------------------------
   TOPLEVEL TYPE "Profile"
   AXIS LABEL "Radius" UNITS "Arcmin"
   LOWIDTH
   UPWIDTH
   DATA UNITS "Solar" LABEL "Abundance"
   3 3 1.5 1.5
   6 1.5 1.5 0.5
   9 1.5 1.5 0.3
   12 1.5 1.5 1.2e-1
   15 1.5 4 2.3e-3
   ;--------------------------------------------------
  

   ;--------------------------------------------------
   ;         TXT2AST demo file - 1 dimensional
   ;        with x and y-axis asymmetric errors
   ;--------------------------------------------------
   TOPLEVEL TYPE "Profile"
   AXIS LABEL "Radius" UNITS "Arcmin"
   LOWIDTH
   UPWIDTH
   DATA UNITS "Solar" LABEL "Abundance"
   LOERROR
   UPERROR
   3 3 1.5 1.5 0.1 0.12
   6 1.5 1.5 0.5 0.02 0.03
   9 1.5 1.5 0.3 0.015 0.02
   12 1.5 1.5 1.2e-1 0.003 0.003
   15 1.5 4 2.3e-3 0.0015 0.0015
   ;--------------------------------------------------
  

   ;--------------------------------------------------
   ;         TXT2AST demo file - 1 dimensional
   ;        with x and y-axis asymmetric errors
   ;   but using data error limits rather than errors
   ;--------------------------------------------------
   TOPLEVEL TYPE "Profile"
   AXIS LABEL "Radius" UNITS "Arcmin"
   LOWIDTH
   UPWIDTH
   DATA UNITS "Solar" LABEL "Abundance"
   LOLIM
   UPLIM
   3 3 1.5 1.5 1.4 1.62
   6 1.5 1.5 0.5 0.48 0.53
   9 1.5 1.5 0.3 0.285 0.32
   12 1.5 1.5 1.2e-1 0.117 0.123
   15 1.5 4 2.3e-3 0.0008 0.0038
   ;--------------------------------------------------