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anydyce package reference

jupyter_visualize(histogram_specs: Iterable[Union[HLikeT, Tuple[str, HLikeT], Tuple[str, HLikeT, HLikeT]]], default_breakout_type: Union[int, BreakoutType] = BreakoutType.NONE, default_markers = '<>v^dPXo', default_main_plot_type: str = 'line', main_plot_funcs_by_type = _DEFAULT_MAIN_PLOT_FUNCS_BY_NAME)

Experimental

This function should be considered experimental and may change or disappear in future versions.

Takes a list of one or more histogram_specs and produces an interactive visualization reminiscent of AnyDice, but with some extra goodies.

Each item in histogram_specs can be a dyce.H object, a 2-tuple, or a 3-tuple. 2-tuples are in the format (str, H), where str is a name or description that will be used to identify the accompanying H object where it appears in the visualization. 3-tuples are in the format (str, H, H). The second H object is used for the interior ring in “burst” break-out graphs, but otherwise ignored.

The “Powered by the Apocalypse (PbtA)” example in the introduction notebook should give an idea of the effect. (See Interactive quick start.)

The default_breakout_type parameter indicates which break-out graphs to display initially and defaults to BreakoutType.NONE. This only affects the initial display. Break-out graphs can be hidden or changed with the interactive controls.

Source code in anydyce/viz.py
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@experimental
@beartype
def jupyter_visualize(
    histogram_specs: Iterable[
        Union[HLikeT, Tuple[str, HLikeT], Tuple[str, HLikeT, HLikeT]]
    ],
    default_breakout_type: Union[int, BreakoutType] = BreakoutType.NONE,
    default_markers="<>v^dPXo",
    default_main_plot_type: str = "line",
    main_plot_funcs_by_type=_DEFAULT_MAIN_PLOT_FUNCS_BY_NAME,
):
    r"""
    !!! warning "Experimental"

        This function should be considered experimental and may change or disappear in
        future versions.

    Takes a list of one or more *histogram_specs* and produces an interactive
    visualization reminiscent of [AnyDice](https://anydice.com/), but with some extra
    goodies.

    Each item in *histogram_specs* can be a ``#!python dyce.H`` object, a 2-tuple, or a
    3-tuple. 2-tuples are in the format ``#!python (str, H)``, where ``#!python str`` is
    a name or description that will be used to identify the accompanying ``#!python H``
    object where it appears in the visualization. 3-tuples are in the format ``#!python
    (str, H, H)``. The second ``#!python H`` object is used for the interior ring in
    “burst” break-out graphs, but otherwise ignored.

    The “Powered by the _Apocalypse_ (PbtA)” example in the introduction notebook should
    give an idea of the effect. (See [Interactive quick
    start](index.md#interactive-quick-start).)

    The *default_breakout_type* parameter indicates which break-out graphs to display
    initially and defaults to [``BreakoutType.NONE``][anydyce.viz.BreakoutType.NONE].
    This only affects the initial display. Break-out graphs can be hidden or changed
    with the interactive controls.
    """
    # TODO(posita): This is a hack-on-a-stream-of-consciousness-until-it-kind-of-works
    # approach. It would be nice if we had some semblance of an architecture, especially
    # one that allowed for better customization building blocks. Right now, it's pretty
    # limited and fragile.
    assert default_main_plot_type in main_plot_funcs_by_type

    def _display(
        scale: int,
        enable_cutoff: bool,
        cutoff: int,
        breakouts: BreakoutType,
        main_plot_type: str,
        graph_type: GraphType,
        main_plot_style: str,
        alpha: float,
        show_shadow: bool,
        markers: str,
        burst_graph_color: str,
        burst_text_color: str,
        burst_bg_color: str,
        burst_swap: bool,
    ) -> None:
        def _hs() -> Iterator[Tuple[str, H, Optional[H]]]:
            if enable_cutoff:
                cutoff_frac = Fraction(cutoff).limit_denominator(
                    _CUTOFF_BASE**_CUTOFF_EXP
                )
            else:
                cutoff_frac = Fraction(0)

            label: str
            first_h_like: HLikeT
            second_h_like: Optional[HLikeT]

            for i, thing in enumerate(histogram_specs):
                if isinstance(thing, (H, HableT)):
                    label = f"Histogram {i + 1}"
                    first_h_like = thing
                    second_h_like = None
                else:
                    label, first_h_like = thing[:2]

                    if len(thing) < 3:
                        second_h_like = None
                    else:
                        second_h_like = thing[2]  # type: ignore [misc]

                assert isinstance(label, str)
                first_h = limit_for_display(
                    first_h_like.h()
                    if isinstance(first_h_like, HableT)
                    else first_h_like,
                    cutoff_frac,
                )
                assert isinstance(
                    first_h, H
                ), f"unrecognized histogram type {first_h!r}"

                if second_h_like is None:
                    second_h = None
                else:
                    second_h = limit_for_display(
                        second_h_like.h()
                        if isinstance(second_h_like, HableT)
                        else second_h_like,
                        cutoff_frac,
                    )

                assert second_h is None or isinstance(
                    second_h, H
                ), f"unrecognized histogram type {second_h!r}"
                yield label, first_h, second_h

        hs_list = list(_hs())
        unique_outcomes = sorted(
            set(chain.from_iterable(h.outcomes() for _, h, _ in hs_list))
        )

        def _csv_download_link() -> HTML:
            labels = [label for label, _, _ in hs_list]
            raw_buffer = io.BytesIO()
            csv_buffer = io.TextIOWrapper(
                raw_buffer, encoding="utf-8", newline="", write_through=True
            )
            csv_writer = csv.DictWriter(csv_buffer, fieldnames=["Outcome"] + labels)
            csv_writer.writeheader()

            for outcome in unique_outcomes:
                row = {"Outcome": outcome}
                row.update(
                    {
                        label: h[outcome] / h.total
                        for label, h, _ in hs_list
                        if outcome in h
                    }
                )
                csv_writer.writerow(row)

            # Inspiration: <https://medium.com/@charles2588/how-to-upload-download-files-to-from-notebook-in-my-local-machine-6a4e65a15767>
            csv_name = ", ".join(labels)
            csv_name = csv_name if len(labels) <= 32 else (csv_name[:29] + "...")
            payload = base64.standard_b64encode(raw_buffer.getvalue()).decode()

            return HTML(
                f"""
<a download="{csv_name}.csv" href="data:text/csv;base64,{payload}" target="_blank">
Download raw data as CSV
</a>
"""
            )

        display(_csv_download_link())

        matplotlib.rcParams.update(matplotlib.rcParamsDefault)
        matplotlib.pyplot.rcParams["figure.figsize"] = (
            scale,
            scale / 16 * 9,
        )
        matplotlib.style.use(main_plot_style)
        _, ax = matplotlib.pyplot.subplots()

        if main_plot_type == "scatter":
            matplotlib.pyplot.rcParams["lines.markersize"] *= 2

        main_plot_funcs_by_type[main_plot_type](
            ax,
            hs_list,
            graph_type=graph_type,
            alpha=alpha,
            show_shadow=show_shadow,
            markers=markers if markers else " ",
        )
        ax.set_xticks(unique_outcomes)
        ax.legend()

        with warnings.catch_warnings():
            warnings.simplefilter("ignore")
            matplotlib.pyplot.tight_layout()

        matplotlib.pyplot.show()

        cutoff_widget.disabled = not enable_cutoff
        burst_graph_color_widget.disabled = True
        burst_text_color_widget.disabled = True
        burst_bg_color_widget.disabled = True
        burst_swap_widget.disabled = True

        if breakouts == BreakoutType.BARH:
            per_outcome_height = 1
            per_breakout_height = 1
            total_height = per_breakout_height * len(hs_list) + sum(
                per_outcome_height
                for _ in chain.from_iterable(h.outcomes() for _, h, _ in hs_list)
            )
            inches_per_height_unit = scale / 64
            matplotlib.pyplot.rcParams["figure.figsize"] = (
                scale,
                total_height * inches_per_height_unit,
            )
            grid = (total_height, 1)
            top = 0
            ax = None
            src_ax = None
            barh_kw: Dict[str, Any] = dict(alpha=alpha)

            if show_shadow:
                barh_kw.update(
                    dict(
                        path_effects=[
                            matplotlib.patheffects.withSimplePatchShadow(),
                            matplotlib.patheffects.Normal(),
                        ]
                    )
                )

            for i, (label, h, _) in enumerate(hs_list):
                outcomes, values = values_xy_for_graph_type(h, graph_type)
                loc = (top, 0)
                rowspan = per_breakout_height + per_outcome_height * len(outcomes)
                top += rowspan

                if src_ax is None:
                    src_ax = ax = matplotlib.pyplot.subplot2grid(
                        grid, loc, rowspan=rowspan
                    )
                else:
                    ax = matplotlib.pyplot.subplot2grid(
                        grid, loc, rowspan=rowspan, sharex=src_ax
                    )

                ax.set_yticks(outcomes)
                ax.tick_params(labelbottom=False)
                ax.barh(outcomes, values, label=label, **barh_kw)
                ax.legend(loc="upper right")

            if ax is not None:
                ax.tick_params(labelbottom=True)
                ax.xaxis.set_major_formatter(matplotlib.ticker.PercentFormatter(xmax=1))

            with warnings.catch_warnings():
                warnings.simplefilter("ignore")
                matplotlib.pyplot.tight_layout()

            matplotlib.pyplot.show()
        elif breakouts == BreakoutType.BURST:
            cols = 3
            rows = len(hs_list) // cols + (len(hs_list) % cols != 0)
            matplotlib.pyplot.rcParams["figure.figsize"] = (
                scale,
                scale / 16 * 5 * rows,
            )
            matplotlib.pyplot.figure(facecolor=burst_bg_color)
            burst_graph_color_widget.disabled = False
            burst_text_color_widget.disabled = False
            burst_bg_color_widget.disabled = False

            if any(
                h_outer is not None and h_inner != h_outer
                for _, h_inner, h_outer in hs_list
            ):
                burst_swap_widget.disabled = False

            for i, (label, h_inner, h_outer) in enumerate(hs_list):
                plot_burst_kw: Dict[str, Any] = dict(
                    title=label,
                    inner_color=burst_graph_color,
                    text_color=burst_text_color,
                    alpha=alpha,
                )

                if h_outer is not None:
                    if not burst_swap:
                        h_inner, h_outer = h_outer, h_inner

                    plot_burst_kw.update(
                        dict(outer_formatter=_outcome_name_probability_formatter)
                    )

                ax = matplotlib.pyplot.subplot2grid((rows, cols), (i // cols, i % cols))
                plot_burst(
                    ax,
                    h_inner,
                    h_outer,
                    **plot_burst_kw,
                )

            with warnings.catch_warnings():
                warnings.simplefilter("ignore")
                matplotlib.pyplot.tight_layout()

            matplotlib.pyplot.show()
        else:
            assert (
                breakouts == BreakoutType.NONE
            ), f"unrecognized breakout type {breakouts!r}"

    scale_widget = ipywidgets.widgets.IntSlider(
        value=12,
        min=8,
        max=16,
        step=1,
        continuous_update=False,
        description="Scale",
    )
    enable_cutoff_widget = ipywidgets.widgets.Checkbox(
        value=False,
        description="Hide Data",
    )
    cutoff_widget = ipywidgets.widgets.FloatLogSlider(
        value=_CUTOFF_BASE ** -(_CUTOFF_EXP - 2),
        base=_CUTOFF_BASE,
        min=-_CUTOFF_EXP,
        max=-(_CUTOFF_EXP - 3),
        step=0.2,
        continuous_update=False,
        readout_format=".6f",
        description="Hide up to",
    )
    breakouts_widget = ipywidgets.widgets.RadioButtons(
        value=BreakoutType(default_breakout_type),
        options=(
            ("None", BreakoutType.NONE),
            ("Horizontal Bar", BreakoutType.BARH),
            ("Burst", BreakoutType.BURST),
        ),
    )
    main_plot_type_widget = ipywidgets.widgets.Dropdown(
        value=default_main_plot_type,
        options=main_plot_funcs_by_type.keys(),
        description="Main Type",
    )
    graph_type_widget = ipywidgets.widgets.RadioButtons(
        value=GraphType.NORMAL,
        options=(
            ("Normal", GraphType.NORMAL),
            ("At Least", GraphType.AT_LEAST),
            ("At Most", GraphType.AT_MOST),
        ),
    )
    main_plot_style_widget = ipywidgets.widgets.Dropdown(
        value="bmh",
        options=["default"] + matplotlib.style.available,
        description="Main Colors",
    )
    alpha_widget = ipywidgets.widgets.FloatSlider(
        value=0.6,
        min=0.0,
        max=1.0,
        step=0.05,
        continuous_update=False,
        readout_format="0.0%",
        description="Opacity",
    )
    show_shadow_widget = ipywidgets.widgets.Checkbox(
        value=False,
        description="Shadows",
    )
    markers_widget = ipywidgets.widgets.Text(
        value=default_markers,
        description="Markers",
    )
    burst_graph_color_widget = ipywidgets.widgets.Dropdown(
        value=DEFAULT_GRAPH_COLOR,
        options=sorted(matplotlib.cm.cmap_d.keys()),
        disabled=True,
        description="Burst Graph",
    )
    burst_text_color_widget = ipywidgets.widgets.Dropdown(
        value=DEFAULT_TEXT_COLOR,
        options=sorted(sorted(matplotlib.colors.CSS4_COLORS.keys())),
        disabled=True,
        description="Burst Text",
    )
    burst_bg_color_widget = ipywidgets.widgets.Dropdown(
        value="white",
        options=sorted(sorted(matplotlib.colors.CSS4_COLORS.keys())),
        disabled=True,
        description="Burst Bkgrd",
    )
    burst_swap_widget = ipywidgets.widgets.Checkbox(
        value=False,
        description="Burst Swap",
    )

    display(
        ipywidgets.widgets.VBox(
            [
                ipywidgets.widgets.HBox(
                    [
                        ipywidgets.widgets.VBox(
                            [
                                scale_widget,
                                enable_cutoff_widget,
                                cutoff_widget,
                                ipywidgets.widgets.Label("Break-out Graphs:"),
                                breakouts_widget,
                            ]
                        ),
                        ipywidgets.widgets.VBox(
                            [
                                main_plot_type_widget,
                                ipywidgets.widgets.Label("Plot Type:"),
                                graph_type_widget,
                                main_plot_style_widget,
                                alpha_widget,
                                show_shadow_widget,
                                markers_widget,
                            ]
                        ),
                        ipywidgets.widgets.VBox(
                            [
                                burst_graph_color_widget,
                                burst_text_color_widget,
                                burst_bg_color_widget,
                                burst_swap_widget,
                            ]
                        ),
                    ]
                ),
                ipywidgets.widgets.interactive_output(
                    _display,
                    {
                        "scale": scale_widget,
                        "enable_cutoff": enable_cutoff_widget,
                        "cutoff": cutoff_widget,
                        "breakouts": breakouts_widget,
                        "main_plot_type": main_plot_type_widget,
                        "graph_type": graph_type_widget,
                        "main_plot_style": main_plot_style_widget,
                        "alpha": alpha_widget,
                        "show_shadow": show_shadow_widget,
                        "markers": markers_widget,
                        "burst_graph_color": burst_graph_color_widget,
                        "burst_text_color": burst_text_color_widget,
                        "burst_bg_color": burst_bg_color_widget,
                        "burst_swap": burst_swap_widget,
                    },
                ),
            ]
        )
    )

BreakoutType

Bases: Enum

Source code in anydyce/viz.py
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class BreakoutType(Enum):
    NONE = 0
    BARH = auto()
    BURST = auto()

BARH = auto() class-attribute

BURST = auto() class-attribute

NONE = 0 class-attribute