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我有一些靜態數據存儲在數據框static_data
。我們的目標是合併data
與static_data
以獲得output
靜態數據高效合併
data <- data.frame(A = c("a","b","c","d","e"),B=c("a","b","b","e","e"))
static_data <- data.frame(I=c("a","b","c","d","e"),Info=c(1,2,3,4,5))
output <- data.frame(A = c("a","b","c","d","e"),B=c("a","b","b","e","e"),
AI=c(1,2,3,4,5),BI=c(1,2,2,5,5))
我的代碼如下
colnames(data) <- c("I","B")
temp <- merge(data, static_data,by="I)
等一個。有效代碼的最佳方式是什麼?
@MrFlick我對你的建議達成一致。但首先必須使用列A然後列B進行合併。我想盡可能避免重命名 – richpiana
您真的需要「寬」格式的數據嗎?將數據融化然後再合併一次會更容易。 – MrFlick
是的,我需要保持寬格式的意義,A和B代表鏈接在一起的ID – richpiana