.plot with >2 parameters does not work

[matthiasdiener]

$ runalyzer -m summary.dat
Runalyzer running on Python 3.8.5 | packaged by conda-forge | (default, Sep 16 2020, 17:43:11)
[Clang 10.0.1 ]
Copyright (c) Andreas Kloeckner 2008
Run .help to see help for 'magic' commands
>>> .quantities
id | name    | unit | description                 | rank_aggregator
---+---------+------+-----------------------------+-----------------
7  | dt      | s    | Simulation Timestep         | None
9  | fifteen | None | None                        | None
5  | step    | 1    | Timesteps                   | None
2  | t_2step | s    | Step-to-step duration       | None
3  | t_cpu   | s    | Wall time                   | None
4  | t_log   | s    | Time spent updating the log | None
6  | t_sim   | s    | Simulation Time             | None
1  | t_step  | s    | Time step duration          | None
8  | t_vis   | s    | Time spent visualizing      | None
>>> .plot select $step, $t_step, $t_cpu
Traceback (most recent call last):
  File "/Users/mdiener/Work/emirge/logpyle/logpyle/runalyzer.py", line 305, in push
    self.execute_magic(cmdline)
  File "/Users/mdiener/Work/emirge/logpyle/logpyle/runalyzer.py", line 373, in execute_magic
    self.db.plot_cursor(cursor, columnnames)
  File "/Users/mdiener/Work/emirge/logpyle/logpyle/runalyzer.py", line 120, in plot_cursor
    do_plot(x, y, rest)
  File "/Users/mdiener/Work/emirge/logpyle/logpyle/runalyzer.py", line 115, in do_plot
    plot(x, y, hold=True, *args, **my_kwargs)
  File "/Users/mdiener/miniforge3/envs/ceesd/lib/python3.8/site-packages/matplotlib/pyplot.py", line 2840, in plot
    return gca().plot(
  File "/Users/mdiener/miniforge3/envs/ceesd/lib/python3.8/site-packages/matplotlib/axes/_axes.py", line 1743, in plot
    lines = [*self._get_lines(*args, data=data, **kwargs)]
  File "/Users/mdiener/miniforge3/envs/ceesd/lib/python3.8/site-packages/matplotlib/axes/_base.py", line 273, in __call__
    yield from self._plot_args(this, kwargs)
  File "/Users/mdiener/miniforge3/envs/ceesd/lib/python3.8/site-packages/matplotlib/axes/_base.py", line 418, in _plot_args
    return [func(x[:, j % ncx], y[:, j % ncy], kw, kwargs)
  File "/Users/mdiener/miniforge3/envs/ceesd/lib/python3.8/site-packages/matplotlib/axes/_base.py", line 418, in <listcomp>
    return [func(x[:, j % ncx], y[:, j % ncy], kw, kwargs)
  File "/Users/mdiener/miniforge3/envs/ceesd/lib/python3.8/site-packages/matplotlib/axes/_base.py", line 312, in _makeline
    seg = mlines.Line2D(x, y, **kw)
  File "/Users/mdiener/miniforge3/envs/ceesd/lib/python3.8/site-packages/matplotlib/lines.py", line 390, in __init__
    self.update(kwargs)
  File "/Users/mdiener/miniforge3/envs/ceesd/lib/python3.8/site-packages/matplotlib/artist.py", line 996, in update
    raise AttributeError(f"{type(self).__name__!r} object "
AttributeError: 'Line2D' object has no property 'hold'

[inducer]

What type of plot would you expect in this situation?

[matthiasdiener]

No idea, but there seems to be some kind of support for it:

logpyle/logpyle/runalyzer.py

Lines 80 to 110 in d42edc8

	elif len(cursor.description) > 2:
	small_legend = kwargs.pop("small_legend", True)
	def format_label(kv_pairs):
	return " ".join(f"{column}:{value}"
	for column, value in kv_pairs)
	format_label = kwargs.pop("format_label", format_label)
	def do_plot(x, y, row_rest):
	my_kwargs = kwargs.copy()
	style = PLOT_STYLES[style_idx[0] % len(PLOT_STYLES)]
	if auto_style:
	my_kwargs.setdefault("dashes", style.dashes)
	my_kwargs.setdefault("color", style.color)
	my_kwargs.setdefault("label",
	format_label(list(zip(
	(col[0] for col in cursor.description[2:]),
	row_rest))))
	plot(x, y, hold=True, *args, **my_kwargs)
	style_idx[0] += 1
	style_idx = [0]
	for x, y, rest in split_cursor(cursor):
	do_plot(x, y, rest)
	if small_legend:
	from matplotlib.font_manager import FontProperties
	legend(pad=0.04, prop=FontProperties(size=8), loc="best",
	labelsep=0)

Fixing the matplotlib errors results in some ...strange... graphics.

[inducer]

OIC. I guess it's using the remaining row properties to plot different lines. That means you need to sort by those remaining properties, otherwise you'll understandably get garbage.