练习：python(1)

读取内置iris数据集：

import seaborn as sns
df = sns.load_dataset('iris')
df.head()

保存文件为csv格式文本，并读入python：

import pandas as pd 
## save data
save = pd.DataFrame(df, columns = ['sepal_length', 'sepal_width', 'petal_length', 'petal_width','species']) 
save.to_csv('G:/python/iris2.csv', index = False)
## read data
df = pd.read_csv('G:/python/iris2.csv')
print(df)

df.png

绘制简易小提琴图/箱式图：

## plot
import matplotlib.pyplot as plt
polt1 = sns.violinplot(data=df)   ## violin
# plot2 = sns.boxplot(data=df)  ## box plot
plt.show()

violin.png

boxplot.png