Synopsis
Display the data, model, and residuals for a data set in the image viewer.
Syntax
image_fit(id=None, newframe=True, tile=True, deleteframes=True)
Description
This function displays the data, model (including any instrument response), and the residuals (data - model), for a data set.
The image viewer is automatically started if it is not already open.
Examples
Example 1
Display the fit results - that is, the data, model, and residuals - for the default data set.
>>> image_fit()
Example 2
Do not tile the frames (the three frames are loaded, but only the last displayed, the residuals), and then change the frame being displayed to the second one (the model).
>>> image_fit('img', tile=False)
>>> image_xpaset('frame 2')PARAMETERS
The parameters for this function are:
| Parameter | Type information | Definition |
|---|---|---|
| id | int, str, or None, optional | The data set. If not given then the default identifier is used, as returned by `get_default_id` . |
| newframe | bool, optional | Create a new frame for the data? If False , the default, then the data will be displayed in the current frame. |
| tile | bool, optional | Should the frames be tiles? If False , the default, then only a single frame is displayed. |
| deleteframes | bool, optional | Should existing frames be deleted? The default is True . |
Notes
Image visualization is optional, and provided by the DS9 application.
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
- fitting
- fit, simulfit
- methods
- get_iter_method_name, get_iter_method_opt, list_iter_methods, set_iter_method, set_iter_method_opt
- modeling
- image_model, image_model_component, image_source, image_source_component
- plotting
- plot_fit, plot_fit_delchi, plot_fit_resid
- psfs
- image_kernel
- statistics
- get_stat, get_stat_name
- utilities
- calc_chisqr, calc_stat
- visualization
- contour, contour_data, contour_model, contour_ratio, contour_resid, image_close, image_data, image_deleteframes, image_getregion, image_open, image_ratio, image_resid, image_setregion, image_xpaget, image_xpaset