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Version 1.9 Build 1488

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dish.scanbias - Function

	Package	dish
	Module	dish
	Tool	dish

Adds a bias level to a scan.

Synopsis
scanbias(scan, offset)

Description
Adds a bias offset to a spectrum. Also see d.bias() to add a value to the globalscan1 record directly.

The bias value can be a single value, in which case the entire data array in the sdrecord is offset by one value. It can also be an array of values if the user wishes to apply different offsets to each polarization. The length of the offset array in this case must equal the number of polarizations in the sdrecord.

Arguments

scan		scan
		Allowed:	SDRecord
		Default:	no default
offset		bias level to add
		Allowed:	float or array of floats
		Default:	no default

Returns
An SDRecord

Example

- scan := d.getc(2)
- biasedscan := d.scanbias(scan,0.5);
- d.plotscan(biasedscan)
- biasedscan_b := d.scanbias(scan,[0.5,-0.5]);
- d.plotscan(biasedscan_b)