Pandas 数据框如何制作散点图以将值列表聚类到一组组中

Question

我有这个 pandas df 有 2 列

     target                        drugs

0   ACE2 gene                [angiotensin II,rosiglitazone,irbesartan,valsar]
1   Elastases                [heparin,prednisolone,montelukast,formoterol]
2   MAPK14 protein           [oxaprozin,nilotinib,imatinib,tocilizumab]
3   TMPRSS2 gene             [enzalutamide,camostat]
4   Toll-like receptors      [rituximab,atorvastatin,artesunate,tazarotene]
5   Ubiquitin                [sunitinib,lapatinib,atorvastatin,edaravone]
6   ezrin                    [erlotinib,crizotinib,sorafenib,everolimus]

我想创建一个将药物聚类成目标的图，所以会有 7 个聚类（7 个目标），我不知道该怎么做..

这是 df:

import pandas as pd
    
data = {'target': ['ACE2 gene', 'Elastases', 'MAPK14 protein, human', 'TMPRSS2 gene', 'Toll-like receptors', 'Ubiquitin' , 'ezrin'],'drugs': [['angiotensin II','rosiglitazone','irbesartan'], ['heparin','prednisolone','montelukast','formoterol'] , ['oxaprozin','nilotinib','imatinib','tocilizumab'] , ['enzalutamide','camostat'] , ['rituximab','atorvastatin','artesunate','tazarotene'] , ['sunitinib','lapatinib','atorvastatin','edaravone'], ['erlotinib','crizotinib','sorafenib','everolimus']]
}
    
df = pd.DataFrame(data)

Answer 1

IIUC，您可以像下面这样使用 networkX：

import networkx as nx
import matplotlib.pyplot as plt
import pandas as pd
from itertools import chain
from networkx.drawing.nx_pydot import graphviz_layout
    
df = pd.DataFrame(data = {'target': ['ACE2 gene', 'Elastases', 'MAPK14 protein, human', 'TMPRSS2 gene', 'Toll-like receptors', 'Ubiquitin' , 'ezrin'],
                          'drugs': [['angiotensin II','rosiglitazone','irbesartan'], ['heparin','prednisolone','montelukast','formoterol'] , 
                                    ['oxaprozin','nilotinib','imatinib','tocilizumab'] , ['enzalutamide','camostat'] , 
                                    ['rituximab','atorvastatin','artesunate','tazarotene'] , ['sunitinib','lapatinib','atorvastatin','edaravone'], 
                                    ['erlotinib','crizotinib','sorafenib','everolimus']]})


df['times'] = df['drugs'].apply(lambda x : len(x))
df = df.loc[df.index.repeat(df['times'])].reset_index(drop=True)
df['drug'] = df.groupby('target')['drugs'].transform(lambda x: list(y[idx] for idx, y in enumerate(x)))
df= df.drop(['drugs','times'], axis=1)

g = nx.DiGraph()
g.add_nodes_from(set(chain.from_iterable(df.values)))
for edg in df.values:
    g.add_edge(*edg)
pos = graphviz_layout(g, prog="dot")

fig, axe = plt.subplots(figsize=(40,10))
nx.draw(g, pos,with_labels=True, node_shape='s', ax = axe)
plt.draw()
plt.show()

输出：

Answer 2

你可以像下面这样用seaborn绘制scatterplot：（因为你在其他答案的评论中说，你的答案有问题，我发送另一种方法的另一个答案。）

import matplotlib.pyplot as plt
import pandas as pd
from itertools import chain
import seaborn as sns
    
df = pd.DataFrame(data = {'target': ['ACE2 gene', 'Elastases', 'MAPK14 protein, human', 'TMPRSS2 gene', 'Toll-like receptors', 'Ubiquitin' , 'ezrin'],
                          'drugs': [['angiotensin II','rosiglitazone','irbesartan'], ['heparin','prednisolone','montelukast','formoterol'] , 
                                    ['oxaprozin','nilotinib','imatinib','tocilizumab'] , ['enzalutamide','camostat'] , 
                                    ['rituximab','atorvastatin','artesunate','tazarotene'] , ['sunitinib','lapatinib','atorvastatin','edaravone'], 
                                    ['erlotinib','crizotinib','sorafenib','everolimus']]})

df['times'] = df['drugs'].apply(lambda x : len(x))
df = df.loc[df.index.repeat(df['times'])].reset_index(drop=True)
df['drug'] = df.groupby('target')['drugs'].transform(lambda x: list(y[idx] for idx, y in enumerate(x)))
df = df.drop(['drugs','times'], axis=1)
df['unq_id'] = df.index+1


fig, axe = plt.subplots(figsize=(20,10))
axe.axis('off')
sns.scatterplot(data=df, x="unq_id", y="target", hue="target", ax= axe, s=1000)
for _, point in df.iterrows():
  axe.text(point['unq_id']-0.2, point['target'], point['drug'], rotation=45, size=18)

plt.setp(axe.get_legend().get_texts(), fontsize='22') # for legend text
plt.setp(axe.get_legend().get_title(), fontsize='32') # for legend title
plt.show()

输出：

Pandas 数据框如何制作散点图以将值列表聚类到一组组中

Pandas data frame how to make a scatter plot for clustering a list of values into a set of groups

python

pandas

dataframe

matplotlib

scatter-plot