window.CMBDat: Get a sub window from a 'CMBDat' object
In rcosmo: Cosmic Microwave Background Data Analysis

Description Usage Arguments Details Value Examples

This function returns a data.frame containing the data in x restricted to the CMBWindow new.window

1 2	## S3 method for class 'CMBDat' window(x, new.window, intersect = TRUE, ...)

`x`	a `CMBDat` object.
`new.window`	A single `CMBWindow` object or a list of them.
`intersect`	A boolean that determines the behaviour when `new.window` is a list containing BOTH regular type and "minus" type windows together (see details).
`...`	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 interious 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 cmbdat$data in the the intersection of A and B. Otherwise, if intersect = FALSE, the returned data.frame consists of the points of x$data 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 CMBDataFrame containing the data in x restricted to the CMBWindow new.window

win1 <- CMBWindow(theta = c(0,pi/2,pi/2), phi = c(0,0,pi/2))

## Ensure you have a FITS file with correct path
## before uncommenting and running the rest of the example:
# cmbdat <- CMBDat("CMB_map_smica1024.fits", mmap = TRUE)
# class(cmbdat)
# cmbdat.win <- window(cmbdat, new.window = win1)
# class(cmbdat.win)