Services & Resources / Wolfram Forums
-----
 /
MathGroup Archive
2004
*January
*February
*March
*April
*May
*June
*July
*August
*September
*October
*November
*December
*Archive Index
*Ask about this page
*Print this page
*Give us feedback
*Sign up for the Wolfram Insider

MathGroup Archive 2004

[Date Index] [Thread Index] [Author Index]

Search the Archive

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?
--
To reply via email subtract one hundred and four


  • Prev by Date: Re: Help with parameter estimation
  • Next by Date: Re: Re: x-ArcSin[Sin[x]]
  • Previous by thread: Re: Listplot-Bug in Mathematica 5.0
  • Next by thread: Re: Listplot-Bug in Mathematica 5.0