Other lattices usually require 2 passes. Return the range between the fractiles at the fraction given by the second and third argument. The fractions have to be between 0 and 1 and the second fraction has to be greater than the first one. The second fraction is optional and defaults to 1-fraction1 . Other lattices usually require 2 passes.
Return mean of all elements.
All calculations are done in double precision. Return average deviation. All calculations are done in double precision. It returns the square root of the quadrature sum of two arguments. This can be used to form, for example, linear polarization position angle images when lat1 and lat2 are Stokes Q and U images, respectively .