Question

我有两张类似的表记录了有人花了3个多月的时间。从4-6个月开始，新增了一个变量。

df1 = data.frame(Month=c(1,2,3),Rent=c(132,123,234),Food=c(34,13,45))

df2 = data.frame(Month=c(4,5,6),Rent=c(111,212,231),Food=c(33,11,41),Fun=c(4,6,5))


> df1
  Month Rent Food
1     1  132   34
2     2  123   13
3     3  234   45

> df2
  Month Rent Food Fun
1     4  111   33   4
2     5  212   11   6
3     6  231   41   5

如何将两个表组合/合并为：

  Month Rent Food Fun
1     1  132   34  NA
2     2  123   13  NA
3     3  234   45  NA
4     4  111   33   4
5     5  212   11   6
6     6  231   41   5

Answer 1

您可以在[INFO] 2016-05-18T01:30:47.900Z 241f0cfc-1c98-12e6-b9a7-cf406f32a0dc Response: {u'AcceptRanges': 'bytes', u'ContentType': 'binary/octet-stream', 'ResponseMetadata': {'HTTPStatusCode': 200, 'HostId': 'K8JMVbEt5xA+qXuXOedb1y5nxuv6scMXnNH/rHVtxcg=', 'RequestId': 'D05BE92E55E0'}, u'LastModified': datetime.datetime(2016, 5, 17, 22, 54, 37, tzinfo=tzutc()), u'ContentLength': 94320, u'ETag': '"0e4d457d912bce9ff81952"', u'Metadata': {'author': 'Satyajit Ray', 'description':'He was an Indian filmmaker, widely regarded as one of the greatest filmmakers of the 20th century.'}} Author : Satyajit Ray Description : He was an Indian filmmaker, widely regarded as one of the greatest filmmakers of the 20th century.包中使用join family函数执行此类任务，如下所示：

dplyr

将两个数据框与新列组合

1 个答案: