Tick formatters

Tick formatters can be given in the same way as Matplotlib. Among available formatters, PercentFormatter may be particularly useful for ternary plots.

import numpy as np
import matplotlib.pyplot as plt
from matplotlib.ticker import PercentFormatter
import mpltern

ternary_sum = 100.0

ax = plt.subplot(projection="ternary", ternary_sum=ternary_sum)

np.random.seed(19680801)
t, l, r = ternary_sum * np.random.dirichlet(alpha=(2.0, 4.0, 8.0), size=128).T

ax.scatter(t, l, r, s=64.0, c="none", edgecolors="C0")

ax.set_tlabel("$x_1$")
ax.set_llabel("$x_2$")
ax.set_rlabel("$x_3$")

ax.taxis.set_major_formatter(PercentFormatter())
ax.laxis.set_major_formatter(PercentFormatter())
ax.raxis.set_major_formatter(PercentFormatter())

plt.show()