1

我刚刚开始使用 Bokeh，特别是因为它可以（或者，至少，我认为它可以）在 Python 环境中绘制和弦图。但是，如果源类别和目标类别相同，则绘图似乎失败。例如，我采用了在各种其他软件中用于说明目的的“头发偏好”数据，并尝试使用散景绘制该数据。但是，绘图失败，因为在某些情况下源和目标是相同的。代码如下所示：

import sys
if sys.version_info[0] < 3: 
    from StringIO import StringIO
else:
    from io import StringIO

import pandas as pd

TESTDATA=StringIO("""has,prefers,count
"black","red",2868
"blonde","brown",2060
"brown","blonde",16145
"red","black",1013
"black","brown",8916
"blonde","blonde",10048
"brown","black",8010
"red","red",6907
"black","blonde",5871
"blonde","black",1951
"brown","red",8045
"red","brown",940
"black","black",11975
"blonde","red",6171
"brown","brown",8090
"red","blonde",990
    """)

df = pd.read_csv(TESTDATA, sep=",")

chord_from_df = Chord(df, source="has", target="prefers", value="count")
output_file('chord_from_df.html', mode="inline")
show(chord_from_df)

但它失败并出现错误：

IndexError: pop from empty list

有谁知道使用 Bokeh 或可以处理这种情况的替代 Python 包的解决方法？

4

0 回答 0