[Octave-bug-tracker] [bug #59851] plot() fmt string not working

[anonymous]

URL:
  <https://savannah.gnu.org/bugs/?59851>

                 Summary: plot() fmt string not working
                 Project: GNU Octave
            Submitted by: None
            Submitted on: Sun 10 Jan 2021 12:54:15 PM UTC
                Category: Plotting
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Incorrect Result
                  Status: None
             Assigned to: None
         Originator Name: 
        Originator Email: 
             Open/Closed: Open
                 Release: 6.1.0
         Discussion Lock: Any
        Operating System: GNU/Linux

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Details:

I am using GNU Octave, version 6.1.0 on Linux 5.9.14-arch1-1

When I plot using plot(1:1:10, 1:1:10) I get the expected result.

However, formatting the plot as suggested in
https://octave.org/doc/v6.1.0/Two_002dDimensional-Plots.html#Two_002dDimensional-Plots
does not work for me.

1. The first example provided, 'plot (x, y, "or", x, y2, x, y3, "m", x, y4,
"+")', draws only two of four plots:
https://imgur.com/a/Ppm0zi3
 - "or": no line or markings are visible (instead of red circles)
 - no fmt: blue/black line and no markings are visible
 - "m": solid yellow line is visible (instead of solid magenta)
 - "+": no line or markings visible (instead of crosshairs)

2. Both 'plot (b, "*", "markersize", 10)' and 'plot (t, cos(t), "-;cos(t);",
t, sin(t), "-b;sin(t);");' (the next two examples in the manual) *do* work as
expected

3. Many other formatting options don't work either:
 - If I use a single color as fmt I don't get a line or markings for any of
"k", "r", "g", "y". Only "b", "y", "m", "c" and "w" display a line. See
https://imgur.com/a/DT0wX34

Am I missing something or what is going on here?
Thanks for any help in advance





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