x1<-array(1:24,dim=c(2,3,4))我執(zhí)行后的效果,和老師講的不一樣。只有一個(gè)兩行三咧
> x1<-array(1:24,dim=c(2,3.4))
> x1
? ? ?[,1] [,2] [,3]
[1,]? ? 1? ? 3? ? 5
[2,]? ? 2? ? 4? ? 6
> x1
? ? ?[,1] [,2] [,3]
[1,]? ? 1? ? 3? ? 5
[2,]? ? 2? ? 4? ? 6
> x1<-array(1:24,dim=c(2,3.4))
> x1
? ? ?[,1] [,2] [,3]
[1,]? ? 1? ? 3? ? 5
[2,]? ? 2? ? 4? ? 6
> x1
? ? ?[,1] [,2] [,3]
[1,]? ? 1? ? 3? ? 5
[2,]? ? 2? ? 4? ? 6
2019-03-22
舉報(bào)
2019-03-22
大佬,你的代碼里dim(2,3,4)打成了dim(2,3.4)
array usage里:
dim
the dim attribute for the array to be created, that is an integer vector of length one or more giving the maximal indices in each dimension.
所以相當(dāng)于as.integer(3.4) equals 3
自然就是2行3列啦