Chandra X-Ray Observatory
	(CXC)
Skip to the navigation links
Last modified: December 2013

URL: http://cxc.harvard.edu/sherpa/ahelp/contour.html
Jump to: Description · Examples · Bugs · See Also


AHELP for CIAO 4.6 Sherpa v1

contour

Context: visualization

Synopsis

Open a contour plot in ChIPS

Syntax

contour(contour1, [id1] ... [contourn, idn])

Description

The contour() function opens contour plots in ChIPS to allow the user to visualize contours of a data set, model, fit, fit residuals, data-to-model ratio, or PSF, by dataset id.

  • contour1 ... contourn - the type of contour ('data', 'fit', etc.)
  • id1 ... idn - the id of the dataset to use for each contour; if not given, uses the default dataset id (id=1 by default, see "ahelp get_default_id")

Example 1

sherpa> contour( "data", 3)

A contour plot of data set 3 is visualized in ChIPS with this command.

Example 2

sherpa> contour( "data", "model", "fit", "resid" )

Here, a combination contour plot displays the data, model, fit, and fit residuals of the default data set in separate tiles of the ChIPS display, all to the same scale.

Example 3

sherpa> contour( "data", "bkg", "model", "bkg")

Contour plots of background data set "bkg" and its assigned model are sent to ChIPS for visualization.

Bugs

See the bugs pages on the Sherpa website for an up-to-date listing of known bugs.

See Also

data
copy_data, dataspace1d, dataspace2d, delete_data, fake, get_axes, get_bkg_plot, get_counts, get_data, get_data_plot, get_dep, get_dims, get_error, get_quality, get_specresp, get_staterror, get_syserror, group, load_ascii, load_data, load_grouping, load_image, load_quality, pack_image, set_data, set_quality, ungroup, unpack_ascii, unpack_data, unpack_image
filtering
get_filter, load_filter, set_filter
info
get_default_id, list_data_ids, list_response_ids
modeling
clean, image_model, image_model_component, image_source, image_source_component
plotting
plot_data, set_xlinear, set_xlog, set_ylinear, set_ylog
psfs
contour_kernel, contour_psf, image_kernel
saving
save_error, save_filter, save_grouping, save_quality, save_staterror, save_syserror
utilities
calc_data_sum, calc_data_sum2d, calc_ftest, calc_kcorr, calc_mlr, calc_model_sum2d, calc_source_sum2d, get_rate
visualization
contour_data, contour_fit, contour_fit_resid, contour_model, contour_ratio, contour_resid, contour_source, get_ratio, get_resid, histogram1d, histogram2d, image_close, image_data, image_deleteframes, image_fit, image_getregion, image_open, image_ratio, image_resid, image_setregion, image_xpaget, image_xpaset, rebin

Last modified: December 2013
Smithsonian Institute Smithsonian Institute

The Chandra X-Ray Center (CXC) is operated for NASA by the Smithsonian Astrophysical Observatory. 60 Garden Street, Cambridge, MA 02138 USA.   Email:   cxcweb@head.cfa.harvard.edu Smithsonian Institution, Copyright © 1998-2014. All rights reserved.