matplotlib histogram
import matplotlib.pyplot as plt data = [1.7,1.8,2.0,2.2,2.2,2.3,2.4,2.5,2.5,2.5,2.6,2.6,2.8, 2.9,3.0,3.1,3.1,3.2,3.3,3.5,3.6,3.7,4.1,4.1,4.2,4.3] #this histogram has a range from 1 to 4 #and 8 different bins plt.hist(data, range=(1,4), bins=8) plt.show()