天池新手赛-语义分割笔记（一）

# 查看当前kernel下已安装的包  list packages
!pip list --format=columns

# 安装拓展包
pip install some_package --user

# 举例：安装sklearn某依赖库
!pip install sklearn2pmml --user

# 举例：绘图案例 an example of matplotlib
%matplotlib inline
import numpy as np
import matplotlib.pyplot as plt
from scipy.special import jn
from IPython.display import display, clear_output
import time
x = np.linspace(0,5)
f, ax = plt.subplots()
ax.set_title("Bessel functions")

for n in range(1,10):
    time.sleep(1)
    ax.plot(x, jn(x,n))
    clear_output(wait=True)
    display(f)

# close the figure at the end, so we don't get a duplicate
# of the last plot
plt.close()

标签：plt,天池,--,语义,matplotlib,ax,import,pip,新手
来源： https://blog.csdn.net/qq_42004429/article/details/113885988