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Version 1.9 Build 1556

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qimager.setscales - Function

	Package	synthesis
	Module	qimager
	Tool	qimager

Set the scale sizes for MultiScale Clean

Synopsis
setscales(scalemethod, nscales, uservector)

Description

The multiscale clean algorithm cleans an image on a number of different scales, decomposing the image into Gaussians of these scale sizes. This function allows the user to set the number of scales used (using the nscales method), or to directly control the sizes of the scales in pixels (using the uservector method). When using the nscales method, the scales are calculated using the following formula:

$$\theta_{minor}^{}$$ (1.31)

where $\theta_{min}^{}$ is the fitted minor axis of the clean beam. The first value is zero.

Arguments

scalemethod		Method by which scales are set
		Allowed:	String: 'nscales'|'uservector'
		Default:	nscales
nscales		Number of scales
		Allowed:	Int
		Default:	5
uservector		Vector of scale sizes to use
		Allowed:	Vector of Doubles
		Default:	[0, 3, 10]

Returns
Bool

Example

- imgr.setscales(6);