Error bars

ecolor/elinewidth/capthick style the whiskers/caps independently of the line and marker – each falls back to color/linewidth if not given, so a plain errorbar() call looks exactly as it did before these existed.

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import numpy as np
import plotpress

rng = np.random.default_rng(7)
x = np.arange(10)
fig, ax = plotpress.subplots()
ax.errorbar(x, np.sin(x), yerr=rng.uniform(0.1, 0.4, 10), capsize=3,
           ecolor="#999999", elinewidth=1.0, capthick=2.0)
ax.set_title("errorbar")
fig.tight_layout()