如何将变量中的一组字符值替换为R中的另一组值

gsub(pattern, replacement, x)

# 创建一个包含字符值的变量
x <- c("apple", "banana", "orange", "apple", "banana")

# 使用gsub()函数将"apple"替换为"pear"
x <- gsub("apple", "pear", x)

# 输出替换后的变量
print(x)

[1] "pear"   "banana" "orange" "pear"   "banana"

x <- c("apple", "banana", "orange", "Apple", "banana")
x <- gsub("apple", "pear", x, ignore.case = TRUE)
print(x)

[1] "pear"   "banana" "orange" "pear"   "banana"