聚合具有相同ID的行并仅保留R中的唯一条目

我是R的初学者.我在R中有数据框如下：

Id          Values
A_0_d   Low_5524; Low_6412; Hi_50567
A_0_d   Low_5509; Low_6412; Low_6897; Hi_16021
A_0_d   Low_5524; Low_4930; Low_5886
B_1_d   Low_3697; Low_4519; Low_5524
C_3_d   Low_5576; Low_5581
C_3_d   Hi_30246
C_3_d   Low_5576; Hi_30246

我想基于Ids聚合数据帧,即在一行中将相同ID的所有值分组,并且仅保留如下的唯一条目：

A_0_d   Low_5524; Low_6412; Hi_50567; Low_5509; Low_6897; Hi_16021; Low_4930; Low_5886  
B_1_d   Low_3697; Low_4519; Low_5524
C_3_d   Low_5576; Low_5581; Hi_30246

我可以利用聚合功能.请指导我.

将’data.frame’转换为’data.table'(setDT(df1)).然后,在按’Ids’分组后,将’Values’拆分为“;”,取消列出输出,获取唯一元素并将其粘贴在一起

library(data.table)
setDT(df1)[, .(Values = paste(unique(unlist(strsplit(Values, "; "))), 
                                                 collapse="; ")), by = Id]
#   Id
#1: A_0_d
#2: B_1_d
#3: C_3_d
#                                                                           Values
#1: Low_5524; Low_6412; Hi_50567; Low_5509; Low_6897; Hi_16021; Low_4930; Low_5886
#2:                                                   Low_3697; Low_4519; Low_5524
#3:                                                   Low_5576; Low_5581; Hi_30246