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Basic Information on puthd
Purpose: Change the value of or add a single header item
PUTHD is a MIRIAD task to add or modify an item in the "header"
of an image or uv dataset. The item CANNOT be an array or any
other complex data structure, it must be a single entity. To
modify such complex data structures, specialized programs are
The name of an item within a data set. This is given in the
form as in the example:
The value to be placed in the item. Note only single values can
be given, no arrays.
An optional second units argument can be given to convert the
value before the item is stored. Possible units are "degrees",
"arcminutes", "arcseconds", "time", "hours", "hms", and "dms"
(with mininum match). Times are given in the standard Miriad
form and are stored as Julian dates. Angular units are
converted if necessary and stored in radians. bpa, being the
exception, is stored in degrees.
The data type of the argument. Values can be 'integer', 'real',
'double' and 'ascii'. The default is determined from the format
of the value parameter or from the type of the item if it was
already present. Normally you can allow this parameter to
PUTHD will complain when you change the datatype, but otherwise
allow you to do so.
Generated by firstname.lastname@example.org on 15 Sep 2011