Python - Matplotlib.

import matplotlib.pyplot as plt 
# %matplotlib inline 
plt.figure 
plt.plot([1,2,3,4,5,6,7,8,9,8,7,6,5,4,3,2,1,0]) 
plt.show()

import numpy as np 
t = np.arange(0, 12, 0.01) 
y = np.sin(t)

t → 0 ~ 12 까지 0.01씩 증가

y → sin 함수

plt.figure(figsize = (10, 6)) 
plt.plot(t, y) 
plt.grid() 
plt.xlabel('time') 
plt.ylabel('Amplitude') 
plt.title('Example of sinewave') 
plt.show()

plt.figure(figsize=(10,6)) 
plt.plot(t, np.sin(t)) 
plt.plot(t, np.cos(t)) 
plt.grid() plt.xlabel('time') 
plt.ylabel('Amplitude')
plt.title('Example of sinewave') 
plt.show()

plt.figure(figsize=(10,6)) 
plt.plot(t, np.sin(t), label = 'sin') 
plt.plot(t, np.cos(t), label = 'cos') 
plt.grid() 
plt.legend() 
plt.xlabel('time') 
plt.ylabel('amplitude') 
plt.title('Example of sinewave')

plt.figure(figsize = (10,6)) 
plt.plot(t, np.sin(t), lw=3, label = 'sin') 
plt.plot(t, np.cos(t), 'r', label = 'cos') 
plt.grid() 
plt.legend() 
plt.xlabel('time') 
plt.ylabel('Amplitude') 
plt.title('Example of sinewave') 
plt.show()

t = [0,1,2,3,4,5,6] 
y = [1,4,5,8,9,5,3] 
plt.figure(figsize = (10,6)) 
plt.plot(t, y, color = 'green') 
plt.show()

plt.figure(figsize = (10, 6)) 
plt.plot(t, y, color = 'green', linestyle = 'dashed') 
plt.show()

plt.figure(figsize = (10, 6)) 
plt.plot(t, y, color = 'green', linestyle = 'dashed', marker = 'o') plt.show()

# 다른 방법.
plt.figure(figsize = (10,6)) 
plt.plot(t, y, 'go--') 
plt.show()

plt.figure(figsize = (10, 6)) 
plt.plot(t, y,'go--', markerfacecolor = 'blue', markersize = 12) plt.xlim([-0.5, 6.5]) 
plt.ylim([0.5, 9.5]) 
plt.show()

scatter 그래프

t = np.array([0,1,2,3,4,5,6,7,8,9]) 
y = np.array([9,8,7,9,8,3,2,4,3,4]) 
plt.figure(figsize=(10,6)) 
plt.scatter(t, y) 
plt.show()

plt.figure(figsize = (10,6)) 
plt.scatter(t, y, marker='>') 
plt.show()

colormap = t 
plt.figure(figsize=(10, 6)) 
plt.scatter(t, y, s = 50, c = colormap, marker = '>') 
plt.colorbar() 
plt.show()

s1 = np.random.normal(loc = 0 ,scale = 1, size = 1000) 
s2 = np.random.normal(loc = 5, scale = 0.5, size = 1000) 
s3 = np.random.normal(loc = 10, scale = 2, size = 1000)

plt.figure(figsize = (10, 6)) 
plt.plot(s1, label = 'loc = 0, scale = 1') 
t.plot(s2, label = 'loc = 5, scale = 0.5') 
plt.plot(s3, label = 'loc = 10, scale = 2') 
plt.legend() 
plt.show()

boxplot.

plt.figure(figsize = (10, 6)) 
plt.boxplot((s1, s2, s3)) 
plt.grid() 
plt.show()