savWriter與Dataframe Writer

Question

我想用Python來使用savReaderWriter庫。我有一個數據框，通過df = pd.read_csv讀入。但是，使用下面的代碼片段似乎不會將行寫入文件。

with savReaderWriter.SavWriter(savFileName, *args) as writer: 
writer.writerows(df) 

我收到以下錯誤TypeError：'str'對象不支持項目assignment.Any幫助非常感謝。

Answer 1

這是https://pythonhosted.org/savReaderWriter/

savFileName = 'someFile.sav' 
records = [[b'Test1', 1, 1], [b'Test2', 2, 1]] 
varNames = ['var1', 'v2', 'v3'] 
varTypes = {'var1': 5, 'v2': 0, 'v3': 0} 
with savReaderWriter.SavWriter(savFileName, varNames, varTypes) as writer: 
    for record in records: 
     writer.writerow(record) 

樣品我想你可以把你數據幀到3場（記錄，varNames，varTypes） 順便說一句，你可以使用方法大熊貓將數據寫入文件。

import pandas as pd 

sensor_values = pd.DataFrame([[1,'aaa','bbb'],[2,'ppp','xxx']], columns=['A','B','C']) 
varNames=sensor_values.columns 
records = sensor_values.values 
varType = {key: 0 for x, key in enumerate(sensor_values.columns)}