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How to create duplicate matrices and merge them together in R?
To create duplicate matrices, we can use replicate function that will repeat the original matrix and if we want to merge those matrices together then we can use rbind with do.call. For example, if we have a matrix called M then creation of it’s one duplicate and merging them together can be done using the command −
do.call(rbind,replicate(2,M,simplify=FALSE))
Example
M<-matrix(rpois(25,5),ncol=5) M
Output
[,1] [,2] [,3] [,4] [,5] [1,] 3 5 6 8 7 [2,] 3 8 6 4 6 [3,] 8 5 5 4 7 [4,] 7 6 5 7 4 [5,] 3 3 4 4 3
do.call(rbind,replicate(2,M,simplify=FALSE))
[,1] [,2] [,3] [,4] [,5] [1,] 3 5 6 8 7 [2,] 3 8 6 4 6 [3,] 8 5 5 4 7 [4,] 7 6 5 7 4 [5,] 3 3 4 4 3 [6,] 3 5 6 8 7 [7,] 3 8 6 4 6 [8,] 8 5 5 4 7 [9,] 7 6 5 7 4 [10,] 3 3 4 4 3
do.call(rbind,replicate(3,M,simplify=FALSE))
[,1] [,2] [,3] [,4] [,5] [1,] 3 5 6 8 7 [2,] 3 8 6 4 6 [3,] 8 5 5 4 7 [4,] 7 6 5 7 4 [5,] 3 3 4 4 3 [6,] 3 5 6 8 7 [7,] 3 8 6 4 6 [8,] 8 5 5 4 7 [9,] 7 6 5 7 4 [10,] 3 3 4 4 3 [11,] 3 5 6 8 7 [12,] 3 8 6 4 6 [13,] 8 5 5 4 7 [14,] 7 6 5 7 4 [15,] 3 3 4 4 3
do.call(rbind,replicate(4,M,simplify=FALSE))
[,1] [,2] [,3] [,4] [,5] [1,] 3 5 6 8 7 [2,] 3 8 6 4 6 [3,] 8 5 5 4 7 [4,] 7 6 5 7 4 [5,] 3 3 4 4 3 [6,] 3 5 6 8 7 [7,] 3 8 6 4 6 [8,] 8 5 5 4 7 [9,] 7 6 5 7 4 [10,] 3 3 4 4 3 [11,] 3 5 6 8 7 [12,] 3 8 6 4 6 [13,] 8 5 5 4 7 [14,] 7 6 5 7 4 [15,] 3 3 4 4 3 [16,] 3 5 6 8 7 [17,] 3 8 6 4 6 [18,] 8 5 5 4 7 [19,] 7 6 5 7 4 [20,] 3 3 4 4 3
do.call(rbind,replicate(6,M,simplify=FALSE))
[,1] [,2] [,3] [,4] [,5] [1,] 3 5 6 8 7 [2,] 3 8 6 4 6 [3,] 8 5 5 4 7 [4,] 7 6 5 7 4 [5,] 3 3 4 4 3 [6,] 3 5 6 8 7 [7,] 3 8 6 4 6 [8,] 8 5 5 4 7 [9,] 7 6 5 7 4 [10,] 3 3 4 4 3 [11,] 3 5 6 8 7 [12,] 3 8 6 4 6 [13,] 8 5 5 4 7 [14,] 7 6 5 7 4 [15,] 3 3 4 4 3 [16,] 3 5 6 8 7 [17,] 3 8 6 4 6 [18,] 8 5 5 4 7 [19,] 7 6 5 7 4 [20,] 3 3 4 4 3 [21,] 3 5 6 8 7 [22,] 3 8 6 4 6 [23,] 8 5 5 4 7 [24,] 7 6 5 7 4 [25,] 3 3 4 4 3 [26,] 3 5 6 8 7 [27,] 3 8 6 4 6 [28,] 8 5 5 4 7 [29,] 7 6 5 7 4 [30,] 3 3 4 4 3
Updated on: 06-Mar-2021
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