Pandas 具有多索引的数据帧 excel

Question

我正在尝试获取此

但我得到了这个：

即使没有内容，我也会得到一个垂直的多重索引。这是我正在做的事情的 MWE

from pandas import DataFrame, MultiIndex, ExcelWriter, Series
import numpy.random as rd

FILENAME = 'SampleFile.xlsx'
writer = ExcelWriter(FILENAME, engine='xlsxwriter')
multindex_headers = [['A', 'B', 'C', 'D'],
                     ['A1', 'B2','C3', 'D4']]

index = MultiIndex.from_tuples( list(zip(*multindex_headers)),  names=['l1','l2'])
sampleDF = DataFrame(index=index)
sample_info = [rd.randn(4).tolist()]*5

for sample_data in sample_info:
    sampleDF = sampleDF.append(DataFrame(sample_data, index=index))

sampleDF.to_excel(writer, sheet_name='case')
writer.save()

编辑：

我已经使用 transpose() 实现了一个解决方法，但我想知道是否有解决此问题的正式方法：

from pandas import DataFrame, MultiIndex, ExcelWriter, Series
import numpy.random as rd

FILENAME = 'SampleFile.xlsx'
writer = ExcelWriter(FILENAME, engine='xlsxwriter')
multindex_headers = [['A', 'B', 'C', 'D'],
                     ['A1', 'B2','C3', 'D4']]

index = MultiIndex.from_tuples( list(zip(*multindex_headers)))
sampleDF = DataFrame(index=index)
sampleDF = sampleDF.transpose()
sample_info = [rd.randn(4).tolist()]*5

for sample_data in sample_info:
     sampleDF = sampleDF.append(DataFrame(sample_data, index=index).transpose())

#sampleDF.to_csv('samplecsv.csv')
sampleDF.to_excel(writer, sheet_name='case')
writer.save()

Answer 1

 from pandas import DataFrame, MultiIndex, ExcelWriter, Series
import numpy.random as rd

FILENAME = 'SampleFile.xlsx'
writer = ExcelWriter(FILENAME, engine='xlsxwriter')
multindex_headers = [['A', 'B', 'C', 'D'],
                     ['A1', 'B2','C3', 'D4']]

index = MultiIndex.from_tuples( list(zip(*multindex_headers)))
sampleDF = DataFrame(index=index)
sampleDF = sampleDF.transpose()
sample_info = [rd.randn(4).tolist()]*5

for sample_data in sample_info:
     sampleDF = sampleDF.append(DataFrame(sample_data, index=index).transpose())

#sampleDF.to_csv('samplecsv.csv')
sampleDF.to_excel(writer, sheet_name='case')
writer.save()

摘自我的编辑