Python 例如，将多个csv导入到一个具有多列的数据框中

我有12个csv文件，我想以列方式导入到数据帧中

例如，每12个csv文件的名称不同，如下所示：

filenames = ['experiment_timesteps_1.csv',
             'experiment_timesteps_2.csv',
             'experiment_timesteps_3.csv',
             'experiment_timesteps_4.csv',
             'experiment_timesteps_5.csv',
             'experiment_timesteps_6.csv',
             'experiment_timesteps_8.csv',
             'experiment_timesteps_10.csv',
             'experiment_timesteps_12.csv',
             'experiment_timesteps_15.csv',
             'experiment_timesteps_18.csv',
             'experiment_timesteps_20.csv']

results
266430.1827
318881.2395
285411.9195
279878.2699
272394.9219
239213.2243
274932.4677
290705.0974
315464.9616
240384.0452

results = DataFrame()
for name in filenames:
    aux = read_csv(name)
    results[name[11:-4]] = aux["results"]

我想在新的数据帧中使用唯一的文件名（从第11个到最后4个）作为列标题。每个文件由一列组成，列数相同，如下所示：

filenames = ['experiment_timesteps_1.csv',
             'experiment_timesteps_2.csv',
             'experiment_timesteps_3.csv',
             'experiment_timesteps_4.csv',
             'experiment_timesteps_5.csv',
             'experiment_timesteps_6.csv',
             'experiment_timesteps_8.csv',
             'experiment_timesteps_10.csv',
             'experiment_timesteps_12.csv',
             'experiment_timesteps_15.csv',
             'experiment_timesteps_18.csv',
             'experiment_timesteps_20.csv']

results
266430.1827
318881.2395
285411.9195
279878.2699
272394.9219
239213.2243
274932.4677
290705.0974
315464.9616
240384.0452

results = DataFrame()
for name in filenames:
    aux = read_csv(name)
    results[name[11:-4]] = aux["results"]

我在执行以下代码时遇到错误：

results = DataFrame()
for name in filenames:
    results[name[11:-4]] = read_csv(name, header=0)

---

ValueError:无法设置没有定义索引的帧和无法转换为序列的值如果我理解正确，您可以按如下操作：

filenames = ['experiment_timesteps_1.csv',
             'experiment_timesteps_2.csv',
             'experiment_timesteps_3.csv',
             'experiment_timesteps_4.csv',
             'experiment_timesteps_5.csv',
             'experiment_timesteps_6.csv',
             'experiment_timesteps_8.csv',
             'experiment_timesteps_10.csv',
             'experiment_timesteps_12.csv',
             'experiment_timesteps_15.csv',
             'experiment_timesteps_18.csv',
             'experiment_timesteps_20.csv']

results
266430.1827
318881.2395
285411.9195
279878.2699
272394.9219
239213.2243
274932.4677
290705.0974
315464.9616
240384.0452

results = DataFrame()
for name in filenames:
    aux = read_csv(name)
    results[name[11:-4]] = aux["results"]

这将为每个文件生成一列，其中包含您想要的唯一标识符，每个csv的“结果”列将保存在相应的列中