family:poisson(link = "log") 中的错误：NA/NaN 参数

Error in family:poisson(link = "log") : NA/NaN argument

我正在尝试使用 R 内置函数 glm() 预测足球赛果。但是我得到了 Error in family:poisson(link = "log") : NA/NaN argument。

我使用的代码是：

model <- glm(HomeTeamScore ~ AwayTeamScore + HomeTeam + AwayTeam,
             family:poisson(link = "log"), data = results)
summary(model)

结果如下table:-

Day       Date    HomeTeam    AwayTeam HomeTeamScore AwayTeamScore   Competition
1 Friday 2015-08-14 Aston Villa  Man United             0             1 PremierLeague
2 Monday 2015-08-10   West Brom    Man City             0             3 PremierLeague
3 Monday 2015-08-17   Liverpool Bournemouth             1             0 PremierLeague
4 Monday 2015-08-24     Arsenal   Liverpool             0             0 PremierLeague
5 Monday 2015-09-14    West Ham   Newcastle             2             0 PremierLeague
6 Monday 2015-09-28   West Brom     Everton             2             3 PremierLeague

你需要 = 而不是 :

family = poisson(link = "log")