BkgChisqrPlot

class sherpa.astro.plot.BkgChisqrPlot[source] [edit on github]

Bases: ChisqrPlot

Derived class for creating background plots of 1D chi**2 ((data-model)/error)**2

Attributes Summary

plot_prefs

Methods Summary

hline(y[, xmin, xmax, linecolor, linestyle, ...])

Draw a line at constant y, extending over the plot.

overplot(*args, **kwargs)

Add the data to an existing plot.

plot([overplot, clearwindow])

Plot the data.

prepare(data, model, stat)

Create the data to plot

vline(x[, ymin, ymax, linecolor, linestyle, ...])

Draw a line at constant x, extending over the plot.

Attributes Documentation

plot_prefs = {}

Methods Documentation

static hline(y, xmin=0, xmax=1, linecolor=None, linestyle=None, linewidth=None, overplot=False, clearwindow=True) [edit on github]

Draw a line at constant y, extending over the plot.

overplot(*args, **kwargs) [edit on github]

Add the data to an existing plot.

This is the same as calling the plot method with overplot set to True.

See also

plot

plot(overplot=False, clearwindow=True, **kwargs) [edit on github]

Plot the data.

This will plot the data sent to the prepare method.

Parameters:
  • overplot (bool, optional) – If True then add the data to an existing plot, otherwise create a new plot.

  • clearwindow (bool, optional) – Should the existing plot area be cleared before creating this new plot (e.g. for multi-panel plots)?

  • **kwargs – These values are passed on to the plot backend, and must match the names of the keys of the object’s plot_prefs dictionary.

See also

prepare, overplot

prepare(data, model, stat) [edit on github]

Create the data to plot

Parameters:
  • data – The Sherpa data object to display (it is assumed to be one dimensional). This defines the grid over which the model is displayed.

  • model – The Sherpa model expression to evaluate and display.

  • stat (optional) – This parameter is unused.

See also

plot

static vline(x, ymin=0, ymax=1, linecolor=None, linestyle=None, linewidth=None, overplot=False, clearwindow=True) [edit on github]

Draw a line at constant x, extending over the plot.