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sd.scantable.set_selection - Function

5.1.2 Select a subset of the data
Description

Select a subset of the data. All following operations on this scantable are only applied to the selection.

The selection can be done via a selector object (default unset the selection), or any combination of ”pols”, ”ifs”, ”beams”, ”scans”, ”cycles”, ”name”, ”query”, ”types” that will be passed to the constructor of the selector object to create a new selection.

Arguments





Inputs

selection

A selector object

allowed:

selector

Default:

None





Returns

Example

        scan = sd.scantable(’OrionS_rawACSmod_cal’)  
        sel = sd.selector()         # create a selection object  
        self.set_scans([0, 3])    # select SCANNO 0 and 3  
        scan.set_selection(sel)  # set the selection  
        scan.summary()           # will only print summary of scanno 0 an 3  
        scan.set_selection()     # unset the selection  
        # or the equivalent  
        scan.set_selection(scans=[0,3])  
        scan.summary()           # will only print summary of scanno 0 an 3  
        scan.set_selection()     # unset the selection


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