删除数据集中的行会出错

text <- c(1:13)
numbers <- c(1,1,1,1,1,1,1,1,1,1,1,1,1)
test <- data.frame(
    text =text,
    is.numeric.feature = numbers)

   text is.numeric.feature
1     1                  1
2     2                  1
...
13    13                 1

test[-c(which(test$is.numeric.feature==0)),]

which(data$is.numeric.feature==0)

integer(0)

> Data[-integer(0),]
[1] text               is.numeric.feature
<0 rows> (or 0-length row.names)

Data[Data$is.numeric.feature!=0,]

which

data[!data$is.numeric.feature == 0, ]

which

integer(0)

data[data$is.numeric.feature!=0,]

subset(data,is.numeric.feature!=0)