Description Usage Arguments Details Value Examples

This function returns a
data.frame containing the data in `x`

restricted to the
CMBWindow `new.window`

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`x` |
A data.frame. Must have columns labelled x,y,z specifying cartesian coordinates, or columns labelled theta, phi specifying colatitude and longitude respectively. |

`new.window` |
A single |

`intersect` |
A boolean that determines
the behaviour when |

`...` |
Unused arguments. |

Windows that are tagged with `set.minus`

(see `CMBWindow`

)
are treated differently from other windows.

If the argument is a list of CMBWindows, then interiors of all windows whose
winType does not include "minus" are united (let *A* be their union) and
exteriors of all windows whose winType does include "minus" are intersected,
(let *B* be their intersection). Then, provided that
`intersect = TRUE`

(the default), the returned data.frame will
be the points of `x`

in the the intersection of
*A* and *B*.
Otherwise, if `intersect = FALSE`

, the returned data.frame
consists of the points of `x`

in the union of
*A* and *B*.

Note that if *A* (resp. *B*) is empty then the returned data.frame
will be the points of `x`

in *B* (resp. *A*).

A data.frame containing the data in `x`

restricted to the
CMBWindow `new.window`

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