image_ratio

Synopsis

Send image of the ratio (i.e., data/model) to ds9.

image_ratio( [ id, [newframe=False, tile=False]] )

Description

Sends an image of the data-to-model ratio to the imager--by default, ds9. The data set is a 2-D data set.

• id - the id of the data set to use; if not given, uses the default dataset id (id=1 by default, see "ahelp get_default_id")
• newframe - add a new frame; default=False
• tile - tile image frame; default=False

Example

sherpa> image_ratio()
sherpa> image_ratio(1)
sherpa> image_ratio(1, newframe=True, tile=False)

The image_ratio function can be called with no arguments, in which case an image of the ratio associated with the default data set is sent to the imager. By default, the image is sent to the same frame and the frames are not tiled.

Bugs

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

See Also

data

load_image, pack_image, unpack_image

modeling

image_model, image_model_component, image_source, image_source_component

psfs

image_kernel

visualization

contour, contour_data, contour_model, contour_ratio, contour_resid, image_close, image_data, image_deleteframes, image_fit, image_getregion, image_open, image_resid, image_setregion, image_xpaget, image_xpaset