python-radar-chart-matplotlib/radar_chart_subplot.py at master · paulinelemenkova/python-radar-chart-matplotlib · GitHub

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#!/usr/bin/env python
# coding: utf-8
"""Radar (Spider) Charts with Python and Matplotlib

Author:  Polina Lemenkova
ORCID:   https://orcid.org/0000-0002-5759-1089
Archive: https://doi.org/10.13140/RG.2.2.31562.82883
License: MIT

See README.md for details.
"""
import os
from math import pi

import matplotlib.artist as martist
import matplotlib.pylab as pylab
import matplotlib.pyplot as plt
import numpy as np
import pandas as pd
import seaborn as sns
from matplotlib.offsetbox import AnchoredText

os.chdir(os.path.dirname(os.path.abspath(__file__)))
df = pd.read_csv("Tab-Morph.csv")

params = {'figure.figsize': (10, 5),
          'figure.dpi': 300,
          'figure.titlesize': 14,
          'font.family': 'Palatino',
          'axes.grid': True,
          'axes.labelsize': 8,
          'polaraxes.grid': True,
          }
pylab.rcParams.update(params)


def add_at(ax, t, loc=2):
    fp = dict(size=11)
    _at = AnchoredText(t, loc=loc, prop=fp)
    ax.add_artist(_at)
    return _at


# show 6 different variables on our radar chart, so take them out and set as a np.array.
labels = np.array(['Median', 'Max', '1stQ', '3rdQ', 'Min', 'Mean'])
stats1 = df.loc[1, labels].values
stats2 = df.loc[5, labels].values
stats3 = df.loc[12, labels].values
stats4 = df.loc[15, labels].values
stats5 = df.loc[18, labels].values
stats6 = df.loc[23, labels].values

# close the plot
angles = np.linspace(0, 2*np.pi, len(labels), endpoint=False)
angles = np.concatenate((angles, [angles[0]]))
stats1 = np.concatenate((stats1, [stats1[0]]))
stats2 = np.concatenate((stats2, [stats2[0]]))
stats3 = np.concatenate((stats3, [stats3[0]]))
stats4 = np.concatenate((stats4, [stats4[0]]))
stats5 = np.concatenate((stats5, [stats5[0]]))
stats6 = np.concatenate((stats6, [stats6[0]]))

fig = plt.figure()
fig.suptitle('Radar chart for the bathymetry of the Mariana Trench',
             x=0.5, y=0.99)

# subplot 1
ax = fig.add_subplot(231, polar=True)
ax.plot(angles, stats1, 'o-', linewidth=2)
ax.fill(angles, stats1, c='g', alpha=0.2)
ax.set_thetagrids(angles * 180/np.pi, labels)
plt.title('profile (nr.1)')
# ax.annotate('(A)', xy=(1.02, .90), xycoords="axes fraction")
add_at(ax, "A")

# subplot 2
ax = fig.add_subplot(232, polar=True)
ax.plot(angles, stats2, 'o-', linewidth=2)
ax.fill(angles, stats2, c='#a0d8ef', alpha=0.4)
ax.set_thetagrids(angles * 180/np.pi, labels)
plt.title('profile (nr.5)')
add_at(ax, "B")

# subplot 3
ax = fig.add_subplot(233, polar=True)
ax.plot(angles, stats3, 'o-', linewidth=2)
ax.fill(angles, stats3, c='#ee827c', alpha=0.4)
ax.set_thetagrids(angles * 180/np.pi, labels)
plt.title('profile (nr.12)')
add_at(ax, "C")

# subplot 4
ax = fig.add_subplot(234, polar=True)
ax.plot(angles, stats4, 'o-', linewidth=2)
ax.fill(angles, stats4, c='plum', alpha=0.4)
ax.set_thetagrids(angles * 180/np.pi, labels)
plt.title('profile (nr.15)')
add_at(ax, "D")

# subplot 5
ax = fig.add_subplot(235, polar=True)
ax.plot(angles, stats5, 'o-', linewidth=2)
ax.fill(angles, stats5, c='#ffd900', alpha=0.2)
ax.set_thetagrids(angles * 180/np.pi, labels)
plt.title('profile (nr.19)')
add_at(ax, "E")

# subplot 6
ax = fig.add_subplot(236, polar=True)
ax.plot(angles, stats6, 'o-', linewidth=2)
ax.fill(angles, stats6, c='#c3d825', alpha=0.4)
ax.set_thetagrids(angles * 180/np.pi, labels)
plt.title('profile 24')
add_at(ax, "F")

plt.tight_layout()
plt.subplots_adjust(top=0.85, bottom=0.08,
                    left=0.10, right=0.95,
                    hspace=0.25, wspace=0.35
                    )
fig.savefig('plot_RadarChart.png', dpi=300)
plt.show()