displaying a data in a plot label of matplot lib

Question

Is there a way to display a variable (specificaly, a linear fit paramter) in a plot I drow?

Also, is there a way to control the number of figures displayed?

I'm using matplotlib to generate the figures and optimize.curve_fit to do the curve fitting.

What do you mean by "control the number of figures displayed"? You're manually creating the figures... I guess I'm confused as to why you'd have more or less than the number of figures you want displayed? — Joe Kington
– Joe Kington, Commented Nov 26, 2011 at 22:40

Joe Kington · Accepted Answer · 2011-11-26 22:26:42Z

3

Sure, just use text or annotate.

As a quick example:

import numpy as np
import matplotlib.pyplot as plt

# Generate data...
x = np.linspace(0, 30, 15)
y = 0.4 * x + 9 + np.random.random(x.size)

# Linear fit...
model = np.polyfit(x, y, deg=1)

plt.plot(x, y, 'bo', label='Observations')
plt.plot(x, model[0] * x + model[1], 'r-', label='Fitted Model')
plt.annotate(r'$y = {:.2f}x + {:.2f}$'.format(*model), xy=(0.1, 0.9), 
             xycoords='axes fraction', size=18)
plt.legend()

plt.show()

enter image description here

answered Nov 26, 2011 at 22:26

Joe Kington

287k73 gold badges621 silver badges474 bronze badges

Sign up to request clarification or add additional context in comments.

Collectives™ on Stack Overflow

displaying a data in a plot label of matplot lib

1 Answer 1

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

Comments

Your Answer

Sign up or log in

Post as a guest

Related