Having a 2D numpy array (y_array) with 3 columns (and shared x values in a list, x_list), I'm looking to plot each column as a line. Using
accomplishes this successfully.matplotlib.pyplot.plot(x_list, y_array)
The challenge arises when it comes to colors. I wish to assign custom colors to each line. Attempting to pass a list of custom colors to the color= argument results in a ValueError. It's puzzling that while passing a list for labels works fine, colors throw an error.
I've considered generating a custom colormap from my desired colors but struggle with how to apply this colormap during plotting...
Is there a way to specify the colors for plotting the array? Ideally, I'd like to avoid iterating over the array columns in a loop.
Thank you in advance!
Edit: minimal working example: This leads to the mentioned ValueError
import matplotlib.pyplot as plt
import numpy as np
if __name__ == '__main__':
x_list = np.linspace(0, 9, 10)
y1 = np.random.uniform(10, 19, 10)
y2 = np.random.uniform(20, 29, 10)
y3 = np.random.uniform(30, 39, 10)
y_array = np.column_stack([y1, y2, y3])
labels = ['A', 'B', 'C']
# plt.plot(x_list, y_array, label=labels) # this works just fine
my_colors = ['steelblue', 'seagreen', 'firebrick']
plt.plot(x_list, y_array, label=labels, color=my_colors) # throws ValueError
plt.legend()
plt.show()