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I have to plot several curves in logarithmic scale. I used ListLogLinearPlot and customized the Mesh option. Then the markers mixed up.

x = Range[0, 5, 0.1];
ListLogLinearPlot[{Transpose[{x, Sin[x]}], Transpose[{x, Cos[x]}]}, 
    PlotMarkers -> Automatic, Joined -> True, 
    Mesh -> {x[[{2, 3, 4, 6, 11, 21, 31}]]}]

The markers mixed up
And I try not to use the logarithmic plot but ListPlot. It's OK.

ListPlot[{Transpose[{x, Sin[x]}], Transpose[{x, Cos[x]}]}, 
    PlotMarkers -> Automatic, Joined -> True, 
    Mesh -> {x[[{2, 3, 4, 6, 11, 21, 31}]]}]

The markers are correct

I have learned the Mesh bug in PlotMarkers don't change colour for different lines. However, the logarithmic plot has a more sophisticated problem. I am using Mathematica 9. Thanks!

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  • 1
    $\begingroup$ This probably is a bug but by convention we do not start with that tag applied. Also I removed Graphics as this appear to be only an issue with a plotting function an not the underlying Graphics system. $\endgroup$ – Mr.Wizard Jun 18 '15 at 8:26
  • $\begingroup$ Similar appearing but apparently different bug: (41706) $\endgroup$ – Mr.Wizard Jun 18 '15 at 8:29
  • $\begingroup$ The answer given in your linked question by Mr.Wizard seems to be a proper workaround for this case too, isn't it? $\endgroup$ – Karsten 7. Jun 18 '15 at 8:33
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    $\begingroup$ @Karsten7 That is a fairly general way to approach such problems but it is also good to have Q&A's to report/track these bugs, IMO. This one affects version 7 as well so it appears to be another longstanding PlotMarkers bug like (7201) and 41706. $\endgroup$ – Mr.Wizard Jun 18 '15 at 8:43
  • $\begingroup$ Does not happen on v10 $\endgroup$ – yohbs Jun 18 '15 at 9:13
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As I said in the comments, this does not happen on my computer (v10.0 on Ubuntu). But you can easily circumvent this problem by a number of ways. here's one:

x = Range[0, 5, 0.1];
ptsToPlot = {2, 3, 4, 6, 11, 21, 31};
g1 = ListLogLinearPlot[{
    Transpose[{x, Sin[x]}],
    Transpose[{x, Cos[x]}]
    }, Joined -> True];
g2 = ListLogLinearPlot[{
    Transpose[{x, Sin[x]}][[ptsToPlot]],
    Transpose[{x, Cos[x]}][[ptsToPlot]]
    }, PlotMarkers -> Automatic];
Show[g1, g2]

enter image description here

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  • $\begingroup$ I have to use this method now, though i hope Mathematica fix that bug. Thank you! $\endgroup$ – robit Jun 23 '15 at 2:26
  • $\begingroup$ But there's something more sophisticated with the log scale plotting. Such as the ticks' problem. So I now turn to matplotlib as an front end. : ( @yohbs $\endgroup$ – robit Jun 23 '15 at 9:11

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