#!/usr/bin/env python3
# -*- coding: utf-8 -*-
"""ecdf: empirical CDF demo."""
from figrecipe.styles import load_style
[docs]
def plot_ecdf(plt, rng, ax=None):
"""Empirical CDF demo with multiple distributions and legend.
Demonstrates: ax.ecdf() with SCITEX color palette and legend
"""
if ax is None:
fig, ax = plt.subplots()
else:
fig = ax.get_figure() if hasattr(ax, "get_figure") else ax.fig
# Get SCITEX color palette
style = load_style()
palette = style.get("colors", {}).get("palette", [])
colors = [tuple(v / 255.0 for v in c) for c in palette[:3]]
# Multiple distributions with legend
distributions = [
("Normal (μ=0)", rng.normal(0, 1, 100)),
("Shifted (μ=2)", rng.normal(2, 1, 100)),
("Wide (σ=2)", rng.normal(0, 2, 100)),
]
for (label, data), color in zip(distributions, colors):
ax.ecdf(data, label=label, color=color, id=f"ecdf_{label}")
ax.set_xlabel("Value")
ax.set_ylabel("Cumulative Probability")
ax.set_title("ecdf")
ax.legend()
return fig, ax
# EOF