How to remove Null plot markers in QuantilePlot?

Question

Bug introduced in 12.0 and persisting in 13.2.0

I want to change the plot markers of the data points in QuantilePlot. This seems pretty straightforward:

QuantilePlot[
 RandomVariate[NormalDistribution[0, 1], 32], NormalDistribution[mu, sigma],
 ReferenceLineStyle -> Directive[Red, Dashing[{Large}]], PlotMarkers -> {"○"}]

However we can see that we get a "Null" plot marker at either end of the reference line:

Is there a specific command required in QuantilePlot to customise the plot markers for the data points?

@Szabolcs, on Wolfram cloud $Version returns "12.2.0 for Linux x86 (64-bit) (November 16, 2020) ". Rolled back the edit. — kglr, Dec 14 '20 at 10:32
@kglr Interesting, didn't know they released it a month ago in the cloud ... — Szabolcs, Dec 14 '20 at 10:38
Shorter code that has the problem is: QuantilePlot[RandomVariate[NormalDistribution[0, 1], 32], PlotMarkers -> {"o"}] — Ted Ersek, Nov 03 '21 at 13:34

kglr · Accepted Answer · 2020-10-30T23:38:13.063

7

It seems like a bug.

A work-around: Post-process to remove the unwanted Nulls:

{mu, sigma} = {1, 2};
SeedRandom[1]
qp = QuantilePlot[RandomVariate[NormalDistribution[0, 1], 32], 
 NormalDistribution[mu, sigma], 
 ReferenceLineStyle -> Directive[Red, Dashing[{Large}]], 
 PlotMarkers -> {"○"}];
qp/. Inset[Style[Null,___],___] -> {}

Note: The issue does not arise in Version 11.3.0.

edited Oct 30 '20 at 23:38

answered Oct 30 '20 at 23:28

kglr

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Thanks for the work around. – user27119 Oct 30 '20 at 23:28
Interesting that the problem isn't present in 11.3.0, I'm using 12.1.1.0. – user27119 Oct 30 '20 at 23:41
2

The bug exists in 12.3 as well. – jaclea Nov 01 '21 at 08:51

How to remove Null plot markers in QuantilePlot?

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