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"""Bokeh loopitplot."""
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2
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2
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import numpy as np
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3
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2
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from bokeh.models import BoxAnnotation
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4
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2
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from matplotlib.colors import hsv_to_rgb, rgb_to_hsv, to_hex, to_rgb
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5
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2
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from xarray import DataArray
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6
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7
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2
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from ....stats.density_utils import kde
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8
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2
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from ...plot_utils import _scale_fig_size
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9
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2
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from .. import show_layout
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10
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2
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from . import backend_kwarg_defaults, create_axes_grid
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11
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12
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13
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def plot_loo_pit(
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ax,
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figsize,
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16
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ecdf,
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loo_pit,
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loo_pit_ecdf,
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19
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unif_ecdf,
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p975,
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p025,
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22
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fill_kwargs,
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23
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ecdf_fill,
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24
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use_hdi,
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25
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x_vals,
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26
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hdi_kwargs,
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27
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hdi_odds,
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28
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n_unif,
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29
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unif,
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30
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plot_unif_kwargs,
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31
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loo_pit_kde,
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32
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legend, # pylint: disable=unused-argument
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y_hat,
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y,
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color,
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textsize,
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credible_interval,
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plot_kwargs,
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39
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backend_kwargs,
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show,
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):
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"""Bokeh loo pit plot."""
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if backend_kwargs is None:
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backend_kwargs = {}
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backend_kwargs = {
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**backend_kwarg_defaults(),
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**backend_kwargs,
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}
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(figsize, *_, linewidth, _) = _scale_fig_size(figsize, textsize, 1, 1)
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if ax is None:
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backend_kwargs.setdefault("x_range", (0, 1))
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ax = create_axes_grid(
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1,
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figsize=figsize,
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squeeze=True,
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backend_kwargs=backend_kwargs,
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60
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)
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plot_kwargs = {} if plot_kwargs is None else plot_kwargs
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plot_kwargs.setdefault("color", to_hex(color))
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plot_kwargs.setdefault("linewidth", linewidth * 1.4)
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if isinstance(y, str):
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label = ("{} LOO-PIT ECDF" if ecdf else "{} LOO-PIT").format(y)
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elif isinstance(y, DataArray) and y.name is not None:
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label = ("{} LOO-PIT ECDF" if ecdf else "{} LOO-PIT").format(y.name)
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elif isinstance(y_hat, str):
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label = ("{} LOO-PIT ECDF" if ecdf else "{} LOO-PIT").format(y_hat)
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elif isinstance(y_hat, DataArray) and y_hat.name is not None:
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label = ("{} LOO-PIT ECDF" if ecdf else "{} LOO-PIT").format(y_hat.name)
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else:
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label = "LOO-PIT ECDF" if ecdf else "LOO-PIT"
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plot_kwargs.setdefault("legend_label", label)
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plot_unif_kwargs = {} if plot_unif_kwargs is None else plot_unif_kwargs
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light_color = rgb_to_hsv(to_rgb(plot_kwargs.get("color")))
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light_color[1] /= 2 # pylint: disable=unsupported-assignment-operation
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light_color[2] += (1 - light_color[2]) / 2 # pylint: disable=unsupported-assignment-operation
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plot_unif_kwargs.setdefault("color", to_hex(hsv_to_rgb(light_color)))
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plot_unif_kwargs.setdefault("alpha", 0.5)
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plot_unif_kwargs.setdefault("linewidth", 0.6 * linewidth)
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if ecdf:
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n_data_points = loo_pit.size
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plot_kwargs.setdefault("drawstyle", "steps-mid" if n_data_points < 100 else "default")
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plot_unif_kwargs.setdefault("drawstyle", "steps-mid" if n_data_points < 100 else "default")
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if ecdf_fill:
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if fill_kwargs is None:
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fill_kwargs = {}
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fill_kwargs.setdefault("color", to_hex(hsv_to_rgb(light_color)))
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fill_kwargs.setdefault("alpha", 0.5)
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fill_kwargs.setdefault(
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"step", "mid" if plot_kwargs["drawstyle"] == "steps-mid" else None
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)
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fill_kwargs.setdefault(
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"legend_label", "{:.3g}% credible interval".format(credible_interval)
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)
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elif use_hdi:
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if hdi_kwargs is None:
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hdi_kwargs = {}
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hdi_kwargs.setdefault("color", to_hex(hsv_to_rgb(light_color)))
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hdi_kwargs.setdefault("alpha", 0.35)
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if ecdf:
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if plot_kwargs.get("drawstyle") == "steps-mid":
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ax.step(
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np.hstack((0, loo_pit, 1)),
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np.hstack((0, loo_pit - loo_pit_ecdf, 0)),
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line_color=plot_kwargs.get("color", "black"),
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line_alpha=plot_kwargs.get("alpha", 1.0),
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line_width=plot_kwargs.get("linewidth", 3.0),
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mode="center",
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)
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else:
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0
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ax.line(
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np.hstack((0, loo_pit, 1)),
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np.hstack((0, loo_pit - loo_pit_ecdf, 0)),
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line_color=plot_kwargs.get("color", "black"),
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line_alpha=plot_kwargs.get("alpha", 1.0),
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line_width=plot_kwargs.get("linewidth", 3.0),
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)
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127
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if ecdf_fill:
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if fill_kwargs.get("drawstyle") == "steps-mid":
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# use step patch when you find out how to do that
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0
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ax.patch(
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np.concatenate((unif_ecdf, unif_ecdf[::-1])),
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np.concatenate((p975 - unif_ecdf, (p025 - unif_ecdf)[::-1])),
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133
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fill_color=fill_kwargs.get("color"),
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fill_alpha=fill_kwargs.get("alpha", 1.0),
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)
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else:
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ax.patch(
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np.concatenate((unif_ecdf, unif_ecdf[::-1])),
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np.concatenate((p975 - unif_ecdf, (p025 - unif_ecdf)[::-1])),
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140
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fill_color=fill_kwargs.get("color"),
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fill_alpha=fill_kwargs.get("alpha", 1.0),
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)
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143
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else:
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if fill_kwargs is not None and fill_kwargs.get("drawstyle") == "steps-mid":
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0
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ax.step(
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146
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unif_ecdf,
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147
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p975 - unif_ecdf,
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148
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line_color=plot_unif_kwargs.get("color", "black"),
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149
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line_alpha=plot_unif_kwargs.get("alpha", 1.0),
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150
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line_width=plot_kwargs.get("linewidth", 1.0),
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151
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mode="center",
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152
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)
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153
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0
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ax.step(
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154
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unif_ecdf,
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155
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p025 - unif_ecdf,
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156
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line_color=plot_unif_kwargs.get("color", "black"),
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157
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line_alpha=plot_unif_kwargs.get("alpha", 1.0),
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158
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line_width=plot_unif_kwargs.get("linewidth", 1.0),
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159
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mode="center",
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160
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)
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161
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else:
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162
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2
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ax.line(
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163
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unif_ecdf,
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164
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p975 - unif_ecdf,
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165
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line_color=plot_unif_kwargs.get("color", "black"),
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166
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line_alpha=plot_unif_kwargs.get("alpha", 1.0),
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167
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line_width=plot_unif_kwargs.get("linewidth", 1.0),
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168
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)
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169
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2
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ax.line(
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170
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unif_ecdf,
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p025 - unif_ecdf,
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172
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line_color=plot_unif_kwargs.get("color", "black"),
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173
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line_alpha=plot_unif_kwargs.get("alpha", 1.0),
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174
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line_width=plot_unif_kwargs.get("linewidth", 1.0),
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175
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)
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else:
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if use_hdi:
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ax.add_layout(
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179
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BoxAnnotation(
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180
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bottom=hdi_odds[1],
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181
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top=hdi_odds[0],
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182
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fill_alpha=hdi_kwargs.pop("alpha"),
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183
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fill_color=hdi_kwargs.pop("color"),
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184
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**hdi_kwargs
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185
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)
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186
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)
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187
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else:
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188
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for idx in range(n_unif):
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189
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x_s, unif_density = kde(unif[idx, :])
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190
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ax.line(
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191
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x_s,
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192
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unif_density,
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193
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line_color=plot_unif_kwargs.get("color", "black"),
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194
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line_alpha=plot_unif_kwargs.get("alpha", 0.1),
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195
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line_width=plot_unif_kwargs.get("linewidth", 1.0),
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196
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)
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197
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ax.line(
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198
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x_vals,
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199
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loo_pit_kde,
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200
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line_color=plot_kwargs.get("color", "black"),
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201
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line_alpha=plot_kwargs.get("alpha", 1.0),
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202
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line_width=plot_kwargs.get("linewidth", 3.0),
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203
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)
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204
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205
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2
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show_layout(ax, show)
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206
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207
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return ax
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