如何在R中将字符串与NA组合

Question

aa<-"apples and "
bb<-"banana"
cc<-"NA
dd<-"are good fruit"
ff<-paste(aa,bb,cc,dd, sep=" ")
ff

> ff
[1] "apples and  banana NA are good fruit"

如何获取“苹果和香蕉都是好水果”

Answer 1

您可以使用na.omit和c函数的组合来将字符向量与NA连接。请参见下面的代码：

aa <- "apples and"
bb <- "bananas"
cc <- NA
dd <- "are good fruit"

ff<-paste(na.omit(c(aa, bb, cc, dd)), sep = " ", collapse = " ")
ff

# [1] "apples and  bananas are good fruit"