PSRCHIVE documentation: psrplot labels

The labels on psrplot plots may be set using

Label names

There are a total of eight label positions on each panel of a psrplot plot:
  • x:lab - label on x-axis
  • y:lab - label on y-axis
  • above:l - label above top of viewport (left)
  • above:c - label above top of viewport (centre)
  • above:r - label above top of viewport (right)
  • below:l - label below top of viewport (left)
  • below:c - label below top of viewport (centre)
  • below:r - label below top of viewport (right)

For example: 

psrplot -p stokes -c above:l="Template profile" 0437n.FF

Multiple lines

Multiple lines may be printed above and below the top of the frame. Each line in a plot label is separated by a C-style newline \n, as in the following example: 
psrplot -p stokes -c below:l="PSR J0437-4715\nStokes parameters" 0437n.FF

Variable substitution and mathematical expressions

Plot labels may also include variable names and mathematical expressions that are interpreted before plotting using the syntax described here.