系统:Windows 7 语言版本:Anaconda3-4.3.0.1-Windows-x86_64 编辑器:pycharm-community-2016.3.2 seaborn:0.7.1
Part 1:示例
df_1
,有4列["p1", "p2", "p3", "p4", "from"]
from
类别输出p1
的箱形图,就是以from
为分类标准,将p1列进行分类,对每类输出箱形图"p1", "p2", "p3", "p4"
的箱形图图1 p1的箱形图
图2 "p1", "p2", "p3", "p4"的箱形图
Part 2:代码
import pandas as pd
import seaborn as sns
from matplotlib import pyplot as plt
dict_1 = {
"p1": [0.5, 0.8, 1.0, 1.2, 1.5, 2.5, 0.9, 0.6, 1.3, 1.0,
1.3, 1.6, 1.9, 2.5, 4.2, 3.5, 2.2, 1.2, 1.5, 0.5],
"p2": [1.3, 2.8, 1.3, 1.4, 6.5, 2.5, 0.9, 0.6, 1.3, 1.0,
1.3, 1.6, 1.9, 2.5, 4.2, 3.5, 1.2, 1.2, 3.5, 2.5],
"p3": [2.5, 0.8, 1.3, 1.2, 1.5, 2.8, 1.9, 0.6, 1.3, 1.1,
1.3, 1.6, 1.1, 2.5, 4.2, 3.9, 2.2, 1.2, 1.5, 0.5],
"p4": [2.5, 0.8, 1.3, 1.2, 1.5, 3.8, 1.9, 0.6, 1.3, 1.1,
1.3, 1.6, 1.1, 2.5, 4.2, 3.9, 2.2, 1.2, 1.5, 0.5],
"from": ["sample1", "sample1", "sample1", "sample1", "sample1",
"sample2", "sample2", "sample2", "sample2", "sample2",
"sample3", "sample3", "sample3", "sample3", "sample3",
"sample4", "sample4", "sample4", "sample4", "sample4"]}
df_1 = pd.DataFrame(dict_1, columns=["p1", "p2", "p3", "p4", "from"])
print(df_1)
sns.set(style="ticks", color_codes=True)
sns.boxplot(x="from", y="p1", data=df_1, palette="Set2")
plt.show()
图3 代码截图
图4 df_1
Part 3:部分代码解读
sns.boxplot(x="from", y="p1", data=df_1, palette="Set2")
,生成结果对应图1x="from", y="p1"
表示以from列作为p1列的分组标准,对每组画出箱形图data
数据源,是一个DataFramepalette
色板sns.boxplot(data=df_1)
,对应图2图5 cmap=”hot_r”效果图
传送门
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