Chandra X-Ray Observatory
	(CXC)
Skip to the navigation links
Last modified: December 2013

URL: http://cxc.harvard.edu/chips/ahelp/delete_histogram.html
Jump to: Description · Examples · Bugs · See Also


AHELP for CIAO 4.9 ChIPS v1

delete_histogram

Context: histograms

Synopsis

Delete the specified histogram.

Syntax

delete_histogram()
delete_histogram(id)

Description

The function arguments.

Argument Description
id A ChipsId structure identifying the item, or a string containing the name of the object.

If no argument is given then the current histogram is deleted, otherwise the argument determines what to delete.

Example 1

chips> add_histogram([1,2,3], [10, 15, 20],["dropline", "off"])
chips> delete_histogram()

Create a histogram, then delete it.

Example 2

chips> id = ChipsId()
chips> add_histogram([5,8,13], [10, 15, 20], [12, 17, 22], "id=basic")
chips> add_histogram([8,10,14], [12, 17, 22], [14, 19, 24], [1,1,2],
["id", "witherrs", "symbol.style", "diamond", "err.style", "capped"])
chips> id.histogram = "basic"
chips> delete_histogram(id)

Two histograms are created; the second histogram is current after it is created. The id.histogram command sets the histogram value of the ChipsId structure to the first histogram. That histogram is then deleted.

Example 3

chips> add_histogram([5,8,13], [10, 15, 20], [12, 17, 22], "id=basic")
chips> add_histogram([8,10,14], [12, 17, 22], [14, 19, 24], [1,1,2],
["id", "witherrs", "symbol.style", "diamond", "err.style", "capped"])
chips> delete_histogram("all")

Two histograms are created, then the delete_histogram command deletes them both.

Bugs

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

See Also

concepts
chipsid, currency
histograms
add_histogram, current_histogram, display_histogram, get_histogram, hide_histogram, set_histogram, shuffle_histogram
utilities
load_fill

Last modified: December 2013
Smithsonian Institute Smithsonian Institute

The Chandra X-Ray Center (CXC) is operated for NASA by the Smithsonian Astrophysical Observatory. 60 Garden Street, Cambridge, MA 02138 USA.   Email:   cxchelp@head.cfa.harvard.edu Smithsonian Institution, Copyright © 1998-2017. All rights reserved.