matplotlib之np.linspace、plt.xlim和xticks

import matplotlib.pyplot as plt
import numpy as np
x = np.linspace(-1,1,5)
y = x+1
plt.xlim((-1,6))
new_ticks = np.linspace(-1,2,5)
plt.xticks(new_ticks)
plt.plot(x,y,'ob-')
plt.show()

改变xticks——坐标轴显示和精度

import matplotlib.pyplot as plt
import numpy as np
x = np.linspace(-1,1,5)
y = x+1
plt.xlim((-1,6))
new_ticks = np.linspace(-1,6,10)
plt.xticks(new_ticks)
plt.plot(x,y,'ob-')
plt.show()

改变linspace

import matplotlib.pyplot as plt
import numpy as np
x = np.linspace(-1,1,100)
y = x+1
plt.xlim((-1,6))
new_ticks = np.linspace(-1,6,10)
plt.xticks(new_ticks)
plt.plot(x,y,'ob-')
plt.show()

改变xlim——改变x轴的取值范围

import matplotlib.pyplot as plt
import numpy as np
x = np.linspace(-1,1,100)
y = x+1
plt.xlim((-1,7))
new_ticks = np.linspace(-1,6,10)
plt.xticks(new_ticks)
plt.plot(x,y,'ob-')
plt.show()