R只重复一个元素并更改其他元素

Question

我需要这个：

"X","Y",151,"X","Y",152,"X","Y",153,"X","Y",154,....."X","Y",334

但我只能得到这个：

names<-c("X","Y",seq(152,334,by=1))
#"X","Y",151,152,153,154....334

由于

Answer 1

我们创建一个序列向量（'v1'），用'{1}}'v1'复制向量（c("X", "Y", "")），用length“”复制'v1'。

replace the

或者另一个选项是将字符串（v1 <- 152:334 v2 <- rep(c("X", "Y", ""), length(v1)) v3 <- replace(v2, v2 == "", v1) head(v3, 10) #[1] "X" "Y" "152" "X" "Y" "153" "X" "Y" "154" "X" tail(v3, 10) # [1] "331" "X" "Y" "332" "X" "Y" "333" "X" "Y" "334" ）复制为'{1}}的'v1'，"X Y"复制'v1'，将矩阵连接（length） rbind，c将vector拆分为scan。

"X Y"