Determines how the noise in each box is found

If this is zero, the noise in
each box (see parameter

`"`

noi.box_size`"`

) is found by taking Fourier transform of the residuals in
each box and then using the mean power in the range 2 to 10 Hz as the noise. If it is non-zero, the
noise for each residual is set to the variance of the neighbouring residuals in a box centred on the
residual. Using this scheme causes the noise values to vary continuously with time, whereas the FFT
scheme produced blocks of equal noise values. When using a small box size, `"`

noi.box_type=1`"`

will
often result in far fewer samples being flagged as unusable. Note, if `"`

noi.box_size`"`

is set to zero,
then the value of `"`

noi.box_type`"`

is ignored and the noise is always calculated on the basis of the
mean power in the 2 to 10 Hz band. [1] - Type:

MAKEMAP, CALCQU

Copyright © 2014-2015 Science and Technology Facilities Council,

East Asian Observatory

East Asian Observatory