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Last modified: December 2007

URL: http://cxc.harvard.edu/sherpabeta/image_resid.sl.html

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J
jdpileup - py sl
 
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linebroad - py sl
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M
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normbeta1d - py sl
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P
plot_chisqr - py sl
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reg_proj - py sl
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schechter - py sl
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tablemodel - py sl
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unsubtract - py sl
 
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AHELP for Sherpa 4.0 Beta image_resid Context: sl.sherpa

Synopsis

Send image of the residuals (i.e., data - model) to the imager.

Syntax

image_resid(; [ id=1, [newframe=False, tile=False]] );

Description

Sends an image of the residuals to the imager--by default, DS9. The data set is a 2-D data set. The residuals are of the model subtracted from the data. If no data set ID is given, by default the residuals associated with the first data set ID is sent to the imager.

Example

sherpa> image_resid;
sherpa> image_resid(1, newframe=True, tile=False);

The image_resid function can be called with no arguments, in which case an image of the residuals associated with the first data set is sent to the imager. By default, the image is sent to the same frame (newframe=False) and the frames are not tiled (tile=False). These options can be overridden by setting these keywords to True.

Bugs

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

See Also

sl.sherpa
image_data, image_deleteframes, image_fit, image_getregion, image_model, image_ratio, image_setregion, image_xpaget, image_xpaset, load_image
Last modified: December 2007


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