__add__(self, other)
(Addition operator)

is_empty(self)

reset(self)

set_beams(self, beams=[])

Set a sequence of Beam numbers (0-based).
Parameters:
    beams:    a list of integers. Default [] is to unset the selection.

set_cycles(self, cycles=[])

Set a sequence of IF numbers (0-based).
Parameters:
    cycless:    a list of integers. Default [] is to unset the selection.

set_ifs(self, ifs=[])

Set a sequence of IF numbers (0-based).
Parameters:
    ifs:    a list of integers. Default [] is to unset the selection.

set_name(self, name)

Set a selection based on a name. This can be a unix pattern , e.g. "*_R"
Parameters:
    name:    a string containing a source name or pattern
Examples:
    # select all reference scans which start with "Orion"
    selection.set_name("Orion*_R")

set_order(self, order)

Set the order the scantable should be sorted by.
Parameters:
    order:    The list of column names to sort by in order

set_polarisations(self, pols=[])

Set the polarisations to be selected in the scantable.
Parameters:
     pols:     a list of integers of 0-3, or strings, e.g ["I","Q"].
               Default [] is no selection
Example:
     sel = selector()
     # These are equivalent if data is 'linear'
     sel.set_polarisations(["XX","Re(XY)"])
     sel.set_polarisations([0,2])
     # reset the polarisation selection
     sel.set_polarisations()

set_polarization(self, pols=[])

Set the polarisations to be selected in the scantable.
Parameters:
     pols:     a list of integers of 0-3, or strings, e.g ["I","Q"].
               Default [] is no selection
Example:
     sel = selector()
     # These are equivalent if data is 'linear'
     sel.set_polarisations(["XX","Re(XY)"])
     sel.set_polarisations([0,2])
     # reset the polarisation selection
     sel.set_polarisations()

set_query(self, query)

Select by Column query. Power users only!
Example:
    # select all off scans with integration times over 60 seconds.
    selection.set_query("SRCTYPE == 1 AND INTERVAL > 60.0")

set_scans(self, scans=[])

Set a sequence of Scan numbers (0-based).
Parameters:
    scans:    a list of integers. Default [] is to unset the selection.

set_tsys(self, tsysmin=0.0, tsysmax=None)

Select by Tsys range.
Parameters:
    tsysmin:     the lower threshold. Default 0.0
    tsysmax:     the upper threshold. Default None.
Examples:
    # select all spectra with Tsys <= 500.0
    selection.set_tsys(tsysmax=500.0)