Apply an include filter to all 1D datasets
notice( [lo,hi] )
notice( expr )
The notice command specifies the portion of 1D data to be
included in the analysis. The filter is applied to all
available dataset ids; to operate on specific ids, use the
notice_id command
("ahelp notice_id").
-
lo: lower bound of the filter;
default=None
-
hi: upper bound of the filter;
default=None
-
expr: a filter expression to notice an intersection of
filters, e.g. "0.1:5, 6:7". Range filtering allows ":#" and
"#:", which includes an open-ended range of data up to or
beginning at the given value (#), respectively.
The units for the limits are determined by the "units" field
of the data structure: channels, energy (keV), or wavelength
(angstrom). The value can be obtained by using the
get_analysis command
("ahelp get_analysis").
If no limits are supplied, all data points in all datasets are
included. Noticing the entire set is a method of clearing
any filters that have been applied. It is also possible to
specify just a lower limit or just an upper limit; the
unspecified value will remain at the data minimum or maximum.
If the data is binned and the endpoint of the interval falls
within a bin, the entire bin is included in the filter.
To apply an include filter to 2D data, use the
notice2d command
("ahelp notice2d")
or the notice2d_id command
("ahelp notice2d_id").
When the command is called without any arguments, all data
points in all sets are included.
Apply a filter to notice the range 1.0-6.0 keV in all datasets.
sherpa> notice(10,)
sherpa> notice(10, None)
These commands are two equivalent ways of applying an
open-ended notice filter to data in channel space. The
lower limit of the filter is set to 10 channels, but the upper
limit is undefined.
sherpa> notice("0.1:5, 6:7")
Notice the data between 0.1 and 5 keV and between 6 and 7
keV.
sherpa> notice(, 8.0)
sherpa> notice(None, 8.0)
These commands are two equivalent ways of applying an
open-ended notice filter to data in energy space. The
lower limit of the filter is undefined and the upper
limit is set to 8.0 keV.
- py.sherpa
-
get_filter,
group,
ignore,
ignore2d,
ignore2d_id,
ignore_bad,
ignore_id,
notice2d,
notice2d_id,
notice_id,
show_filter
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