I am trying to plot lots of diagrams, and for each diagram, I want to use a variable to label them. How can I add a variable to plt.title? For example:
import numpy as np
import matplotlib.pyplot as plt
plt.figure(1)
plt.ylabel('y')
plt.xlabel('x')
for t in xrange(50, 61):
plt.title('f model: T=t')
for i in xrange(4, 10):
plt.plot(1.0 / i, i ** 2, 'ro')
plt.legend
plt.show()
In the argument of plt.title(), I want t to be variable changing with the loop.
You can change a value in a string by using %. Documentation can be found here.
For example:
num = 2
print "1 + 1 = %i" % num # i represents an integer
This will output:
1 + 1 = 2
You can also do this with floats and you can choose how many decimal place it will print:
num = 2.000
print "1.000 + 1.000 = %1.3f" % num # f represents a float
gives:
1.000 + 1.000 = 2.000
Using this in your example to update t in the figure title:
plt.figure(1)
plt.ylabel('y')
plt.xlabel('x')
for t in xrange(50,61):
plt.title('f model: T=%i' %t)
for i in xrange(4,10):
plt.plot(1.0/i,i**2,'ro')
plt.legend
plt.show()