是否有可能不必写足球队的名称来观看H2H?
我有这些原始变量:
Country League Season Month monthDay weekDay Time HomeTeam AwayTeam
Denmark Superliga 2012/2013 July 13 Friday 17:30 Aarhus Aalborg
并创建新的变量来做
:datafootball <-datafootball[, H2H := as.factor(paste0(HomeTeam,"-", AwayTeam)) ]
datafootball <-datafootball[, H2Hinverse := as.factor(paste0(AwayTeam,"-", HomeTeam)) ].
新变量:
H2H H2Hinverse
Aarhus-Aalborg Aalborg-Aarhus
如果我想检查团队(所有行)之间的H2H,可以通过写下相关团队的名称来完成:
datafootball[datafootball$H2H == "Aalborg-Aarhus" | datafootball$H2H == "Aarhus-Aalborg" , ]
然后,我再次询问:
是否有可能不必写足球队的名称来观看H2H?也许是一个功能。也许使用HomeTeam和AwayTeam代替H2H和H2Hinverse。
条件:
基于即将进行的比赛。也就是说,如果我们假设下一场比赛将是巴塞罗那皇家马德里:
HomeTeam AwayTeam
Barcelona Real Madrid
我想展示H2H在家里玩还是作为访客玩。但是,由于每周都有很多比赛,也有几个联赛,我不想写球队的名称并逐一参赛。
很抱歉问我,但我不是专业程序员,所以我什么也没想到。
非常感谢您。
答案 0 :(得分:0)
不需要H2H和H2H_inverse(我认为)... 我为您的数据添加了一些行,以进行测试。
library(data.table)
datafootball <- read.table(text="Country League Season Month monthDay weekDay Time HomeTeam AwayTeam
Denmark Superliga 2012/2013 July 13 Friday 17:30 Aarhus Aalborg
Denmark Superliga 2012/2013 July 13 Friday 17:30 Aarhus Barcelona
Denmark Superliga 2012/2013 July 13 Friday 17:30 Aalborg Aarhus", header = TRUE) %>% setDT
datafootball
# Country League Season Month monthDay weekDay Time HomeTeam AwayTeam
# 1: Denmark Superliga 2012/2013 July 13 Friday 17:30 Aarhus Aalborg
# 2: Denmark Superliga 2012/2013 July 13 Friday 17:30 Aarhus Barcelona
# 3: Denmark Superliga 2012/2013 July 13 Friday 17:30 Aalborg Aarhus
#give name of teams you want to see the H2H-matches of
teams <- c("Aalborg", "Aarhus")
#return all matches where both teams are playing
datafootball[HomeTeam %in% teams & AwayTeam %in% teams,]
# Country League Season Month monthDay weekDay Time HomeTeam AwayTeam
# 1: Denmark Superliga 2012/2013 July 13 Friday 17:30 Aarhus Aalborg
# 2: Denmark Superliga 2012/2013 July 13 Friday 17:30 Aalborg Aarhus