迭代一个三维数组
iterating a three-dimensional array
他们如何遍历数组的第三维?
检查所有元素?例如:
v = sample(1:5,24,replace = TRUE)
dim(v) = c(3,2,4)
print(v)
, , 1
[,1] [,2]
[1,] 3 3
[2,] 4 5
[3,] 3 1
, , 2
[,1] [,2]
[1,] 5 4
[2,] 4 3
[3,] 2 5
, , 3
[,1] [,2]
[1,] 5 2
[2,] 5 5
[3,] 1 4
, , 4
[,1] [,2]
[1,] 5 4
[2,] 1 3
[3,] 3 4
我想创建一个遍历 4 个矩阵的循环
像下面那样尝试v[,,k]
for (k in 1:tail(dim(v), 1)) {
print(v[, , k])
}
他们如何遍历数组的第三维? 检查所有元素?例如:
v = sample(1:5,24,replace = TRUE)
dim(v) = c(3,2,4)
print(v)
, , 1
[,1] [,2]
[1,] 3 3
[2,] 4 5
[3,] 3 1
, , 2
[,1] [,2]
[1,] 5 4
[2,] 4 3
[3,] 2 5
, , 3
[,1] [,2]
[1,] 5 2
[2,] 5 5
[3,] 1 4
, , 4
[,1] [,2]
[1,] 5 4
[2,] 1 3
[3,] 3 4
我想创建一个遍历 4 个矩阵的循环
像下面那样尝试v[,,k]
for (k in 1:tail(dim(v), 1)) {
print(v[, , k])
}