将一个数据框附加到另一个

Question

我想将三个数据框合并为一个。所有数据框都有一列。

org_city_id=p.DataFrame(training_data['origcity_id'])
pol_city_id=p.DataFrame(training_data['pol_city_id'])
pod_city_id=p.DataFrame(training_data['pod_city_id'])

全部都有 100 条记录，所以我的目标是将它们放入一个包含 300 条记录的数据框中。我下面的代码不起作用

org_city_id.append([pol_city_id,pod_city_id])

org_city_id 中的记录总数仍然是 100 。

有人可以建议。

Answer 1

获取所有数据框的单个列名称：

org_city_id.columns = pol_city_id.columns = pod_city_id.columns = 'Final Name'

然后将它们连接起来：

pd.concat([org_city_id,pol_city_id,pod_city_id])