TOPLEVEL
If present, this line must be the first significant text
in the input file.
The data descriptors supported by TXT2AST are, with their
keywords:
AXIS
Creates an axis component in output. Up to seven
axis descriptors may be specified. Label and units
can be set for each, the normalisation and a scalar
width value. If NORM is not specified, then TXT2AST
assumes the data to be un-normalised about that axis.
If non-scalar widths are required, use the WIDTH
descriptor. If DECREASING is specified, axis values
are ranked in descending numeric order.
WIDTH Specifies that the corresponding column contains
bin widths symmetric about the bin centre for the
axis most recently specified by an AXIS descriptor.
LOWIDTH Specifies that the corresponding column contains the
lower bin widths for the axis most recently specified
by an AXIS descriptor.
HIWIDTH Specifies that the corresponding column contains the
upper bin widths for the axis most recently specified
by an AXIS descriptor.
DATA
Specifies the data for the DATA_ARRAY component of
the output dataset. Label and units can be specified
IGNORE Use the descriptor to force TXT2AST to ignore the
corresponding column of data.
QUALITY
Generates quality array. This can be numeric data,
but alternatively the names of bits can be specified.
See "Quality_Bit_Names" below. If MASK is not
specified, the default mask of %11111111 binary will
be used.
VARIANCE Generates variances in output dataset.
ERROR Allows user to enter data errors, which are squared
on output to form a variance array for ASTERIX.
LOERROR Specifies that the corresponding column contains the
lower data error in the case of asymmetric data errors.
UPERROR Specifies that the corresponding column contains the
upper data error in the case of asymmetric data errors.
Subtopics: