Re: Listplot-Bug in Mathematica 5.0
- To: mathgroup at smc.vnet.net
- Subject: [mg50087] Re: Listplot-Bug in Mathematica 5.0
- From: Bill Rowe <readnewsciv at earthlink.net>
- Date: Sat, 14 Aug 2004 01:50:57 -0400 (EDT)
- Sender: owner-wri-mathgroup at wolfram.com
On 8/13/04 at 5:55 AM, robertzierer at yahoo.com (Robert Zierer) wrote:
>I think I found a bug in Mathematica 5.0.0.0. The following code
>didn't behave as expected (delete the "`" and the "\\"):
It isn't necessary to delete the "`" and the "\\". You can simply copy then paste from your email into a Mathematica session and Mathematica will do the right thing.
<data and ListPlot example snipped>
>Instead of plotting some step curve (some values of the list were
>multiple), it plotted only parts of the list (only the first value
>in a series of multiple values).
I don't understand what you were expecting but it looks to me as if ListPlot is performing exactly as documented.
Note that
Length[swk]
41
Length[Union[swk]]
6
and
Take[swk, {-10, -2}]
{{3809.5051853424857, -0.002704921194676019},
{3809.5051853424857, -0.002704921194676019},
{3809.5051853424857, -0.002704921194676019},
{3809.5051853424857, -0.002704921194676019},
{3809.5051853424857, -0.002704921194676019},
{3809.5051853424857, -0.002704921194676019},
{3809.5051853424857, -0.002704921194676019},
{3809.5051853424857, -0.002704921194676019},
{3809.5051853424857, -0.002704921194676019}}
That is there appear to be only 6 distinct pairs in swk
When I do ListPlot[swk, PlotRange->All]; I see 6 points ploted
And when I compare ListPlot[swk, PlotJoined->True, PlotRange->All]; I see 5 line segments joined a places corresponding to the plotted points. Given that you are plotting only 6 distinct points, why do you expect a different plot?
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