About Chandra Archive Proposer Instruments & Calibration Newsletters Data Analysis HelpDesk Calibration Database NASA Archives & Centers Chandra Science Links

Skip the navigation links
Last modified: December 2007

URL: http://cxc.harvard.edu/sherpabeta/ignore.py.html
AHELP for Sherpa 4.0 Beta ignore Context: py.sherpa

Synopsis

Ignore 1D data with an interval filter.

Syntax

ignore( [xlo,xhi] )

Description

Exclusive ignore on 1D data using a list of intervals for all available data set ID(s).

Example

sherpa> ignore()
sherpa> ignore(0.1, 6.0)
sherpa> ignore(0.1,None)
sherpa> ignore(None, 6.0)
sherpa> ignore([10,70], [20, 120])

The function ignore can be called with no arguments, in which case the filter will ignore all data points on the grid for all available data set ID(s). Supplying a list of interval(s) will apply a filter to the stack. It is important to note that the units of values in the interval(s) must match the units in the data set. The values in the interval(s) will be applied using the grid(s) in all the available data set ID(s).

Bugs

See the bugs pages on the Sherpa Beta website for an up-to-date listing of known bugs.

Last modified: December 2007



The Chandra X-Ray Center (CXC) is operated for NASA by the Smithsonian Astrophysical Observatory.
60 Garden Street, Cambridge, MA 02138 USA.    Email: cxcweb@head.cfa.harvard.edu
Smithsonian Institution, Copyright © 1998-2004. All rights reserved.