Design of Experiments

from doepy import build

samples = build.space_filling_lhs(
    {
        'Pressure': [40, 55, 70],
        'Temperature': [290, 320, 350],
        'Flow rate': [0.2, 0.4],
        'Time': [5, 11]
    },
    num_samples=20)
samples

from mpl_toolkits.mplot3d import Axes3D
import matplotlib.pyplot as plt

# plot
fig = plt.figure(figsize=(12, 8))
ax = fig.add_subplot(111, projection='3d')
ax.scatter3D(samples.Pressure,
           samples.Temperature,
           samples['Flow rate'],
           s=50)
ax.set_xlabel('Pressure')
ax.set_ylabel('Temperature')
ax.set_zlabel('Flow rate');
ax.view_init(30, 125)
plt.show()