Gallery: Overplotting curves (Python)

crv = ChipsCurve()
crv.line.style = "noline"
crv.symbol.style = "square"
crv.symbol.size = 3.0
crv.symbol.fill = 0
add_curve("spectrum.fits[data][cols x,y]",crv)
crv = ChipsCurve()
crv.symbol.style = "none"
crv.line.color = "red"
crv.line.thickness = 2
add_curve("spectrum.fits[fit][cols x,y]",crv)
log_scale(XY_AXIS)

set_plot_xlabel("Energy (keV)")
set_plot_ylabel("Count s^{-1} keV^{-1}")
set_plot_title("Source spectrum")

set_xaxis(["offset.perpendicular",35])
set_plot(["leftmargin",0.25])
set_yaxis(["offset.perpendicular",45])

add_line(0.6,3.0e-4,0.9,3.0e-4,["color","red","thickness",2])
add_label(1.0,3.0e-4,"Model",["color","red","valign",0.5])

add_window(6.0,3.0)
crv = ChipsCurve()
crv.line.style = "noline"
crv.symbol.style = "square"
crv.symbol.size = 3.0
crv.symbol.fill = 0
add_curve("spectrum.fits[data][cols x,y,dylo,dyhi]",crv)
crv = ChipsCurve()
crv.symbol.style = "none"
crv.line.color = "red"
crv.line.thickness = 2
add_curve("spectrum.fits[fit][cols x,y]",crv)
log_scale(XY_AXIS)
limits(X_AXIS,0.5,10.0)

set_plot_xlabel("Energy (keV)")
set_plot_ylabel("Count s^{-1} keV^{-1}")

set_xaxis(["offset.perpendicular",35])
set_plot(["leftmargin",0.15])
set_yaxis(["offset.perpendicular",45])