如何在將R從長格式轉換爲寬格式時創建新列名？

我想重塑一些數據從長格式到寬格式，但讓我困惑的是如何根據原始長格式中的特定列重命名新列。如何在將R從長格式轉換爲寬格式時創建新列名？

Name <- c("Brian","Brian","Brian") 
Age <- c(22,22,22) 
Date <- c("2017.1.3","2017.1.3","2017.1.4") 
School <- c("PH","En","Math") 
Score <- c(100,99,98) 
Course <- c("Epi751","Python","Statistics") 

data <- data.frame(Name, Age, Date, School, Score, Course) 
data

而且表看起來像

Name Age Date  School Score Course 
1 Brian 22 2017.1.3 PH  100 Epi751 
2 Brian 22 2017.1.3 En  99 Python 
3 Brian 22 2017.1.4 Math  98 Statistics

所以，我怎麼能變成這樣？

Name Age Date_Epi751 School_Epi751 Score_Epi751 Date_Python School_Python Score_Python Date_Statistics School_Statistics Score_Statistics 
Brian 22 2017.1.3 PH   100   2017.1.3  En     99   2017.1.4   Math    98

來源

2017-04-17 Brian Zhang

那麼，你可以嘗試reshape

> reshape(data, timevar="Course", idvar = "Name", direction="wide") 
Name Age.Epi751 Date.Epi751 School.Epi751 Score.Epi751 Age.Python 
1 Brian   22 2017.1.3   PH   100   22 
Date.Python School.Python Score.Python Age.Statistics Date.Statistics 
1 2017.1.3   En   99    22  2017.1.4 
School.Statistics Score.Statistics 
1    Math    98

下面是關於如何使用重塑參考，HOW CAN I RESHAPE MY DATA IN R?

來源

2017-04-17 18:57:46 Jon

如何在將R從長格式轉換爲寬格式時創建新列名？

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