#7570: Make plot methods accept 'empty' input to return empty Graphics object
----------------------------------------+-----------------------------------
Reporter: chapoton | Owner: was
Type: defect | Status: needs_review
Priority: minor | Milestone: sage-4.6.2
Component: graphics | Keywords: list_plot, beginner
Author: Ryan Grout | Upstream: N/A
Reviewer: Aly Deines, Gagan Sekhon | Merged:
Work_issues: commit message, sphinx |
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Changes (by kcrisman):
* status: needs_work => needs_review
Old description:
> list_plot does not accept '''empty''' lists:
>
> {{{
> list_plot([1],rgbcolor=(1,0,0))+list_plot([],rgbcolor=(0,0,1))
>
> IndexError: list index out of range
> }}}
>
> does not work, whereas
>
> {{{
> list_plot([1],rgbcolor=(1,0,0))+list_plot([2],rgbcolor=(0,0,1))
> }}}
>
> does work. It would be nicer if list_plot of empty lists gives an empty
> graphics object.
>
> '''Apply''': [attachment:trac_7570_empty_graphics.2.patch]
New description:
list_plot does not accept '''empty''' lists:
{{{
list_plot([1],rgbcolor=(1,0,0))+list_plot([],rgbcolor=(0,0,1))
IndexError: list index out of range
}}}
does not work, whereas
{{{
list_plot([1],rgbcolor=(1,0,0))+list_plot([2],rgbcolor=(0,0,1))
}}}
does work. It would be nicer if list_plot of empty lists gives an empty
graphics object.
'''Apply''': [attachment:trac_7570_empty_graphics.2.2.patch]
--
Comment:
I think this fixes both issues, as well as corrects several 'emtpy'
occurrences.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/7570#comment:24>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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