R/base_is.all.na.R

Defines functions is.all.na

Documented in is.all.na

## 判断一个向量是否全为空值
#' @export
is.all.na <- function(vt){
  l2 <- table(is.na(vt))
  l2.i <- F %in% names(l2) #FALSE则说明没有F,即全为空NA值。
  if(!l2.i){
    #全为NA值
    return(T)
  } else {
    return(F)
  }
}
#a <- c(NA,NA);is.all.na(a)
#b <- c(NA,2);is.all.na(b)
#c <- c(1,3);is.all.na(c)
huangwb8/lucky documentation built on Oct. 16, 2019, 9:01 a.m.