我有一个类似于以下内容的数据集:
Id | Name | year | Offer1 | Offer2 | Offer3
1 Joe 2019 Army Navy UGA
2 Sally 2019 UA UVA UF
R或VBA中是否有任何代码可以转置数据集,如下所示:
Id | Name | year | Offer
1 Joe 2019 Army
1 Joe 2019 Navy
1 Joe 2019 UGA
2 Sally 2019 UA
2 Sally 2019 UVA
2 Sally 2019 UF