#
AIPS HELP file for UVWTFN in 31DEC18

#### As of Tue Jun 19 10:00:18 2018

### HELP SECTION

UVWTFN
Type: Adverb (String*2)
Use: Specify weighting function used to equalize coverage
of measured points in UV plane and otherwise adjust the
weights. It is a two character code. If the first is
'N' then there is no correction to the data weights for
the local density of samples or weights. If it is 'C',
then the weights are corrected for the local density of
samples (simple counts). Otherwise, the weights are
corrected for the local density of data weights
(so-called uniform weighting). The second character
causes the weights to be modified before the local
density of weights is measured and aganin before they are
used. If the second character is the letter 'V', the
fourth root of the weights is taken; if it is 'S' the
square root of the weights is taken; and if it is the
letter 'O' all weights are taken as 1.0.
Null Value: ' '
Null value means Uniform weighting with no conversion of
weights.

### EXPLAIN SECTION