是否有一个R函数来重命名数据集中一行中的一个字符值?
考虑以下基本数据集:是否有一个R函数来重命名数据集中一行中的一个字符值?,r,dataset,R,Dataset,考虑以下基本数据集: myfruit <- tibble(fruit = c("apple", "orange", "apple", "pear", "banana"), quantity = c("10","20","10","30", "40")) m
myfruit <- tibble(fruit = c("apple", "orange", "apple", "pear", "banana"),
quantity = c("10","20","10","30", "40"))
myfruit您可以在此处使用矢量化的ifelse
功能:
myfruit$fruit <- ifelse(myfruit$fruit == "apple",
"mango", myfruit$fruit)
myfruit$fruitmyfruit$fruit[myfruit$fruit==“apple”]