将矩阵组合成 R 中的数组 [英] Combining matrices into an array in R

问题描述

如果我创建了多个矩阵，如何将它们组合成一个数组?我有 8 个矩阵，每个矩阵有 200 行和 200 列，我需要将它们组合成一个数组，dim = 200,200,8.所以我希望我的每个矩阵都是我数组的一部分.

If I have several matrices that I have created, how can I combine them into one array? I have 8 matrices that each have 200 rows and 200 columns and I need to combine them into an array with dim = 200,200,8. So I want each of my matrices to be a slice of my array.

推荐答案

这是两个示例.您可以轻松地将其扩展到八个

here's the example for two. you can easily extend this to eight

# create two matricies with however many rows and columns
x <- matrix( 1:9 , 3 , 3 )
y <- matrix( 10:18 , 3 , 3 )
# look at your starting data
x
y

# store both inside an array, with the same first two dimensions,
# but now with a third dimension equal to the number of matricies
# that you are combining
z <- array( c( x , y ) , dim = c( 3 , 3 , 2 ) )

# result
z

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