Return a sequence of pairs (value, index vector)

Facilitates iterating over matrix, returning a sequence of pairs, where the first element is a value at index (x, y) and the second one is the index (x, y)

seq_matrix(mat)

Arguments

mat	matrix

Value

list of two-element list (single value, two-element vector)

Examples

mat <- matrix(1:9, 3, 3)
seq_matrix(mat)
#> [[1]]
#> [[1]][[1]]
#> [1] 1 1
#> 
#> [[1]][[2]]
#> [1] 1
#> 
#> 
#> [[2]]
#> [[2]][[1]]
#> [1] 1 2
#> 
#> [[2]][[2]]
#> [1] 4
#> 
#> 
#> [[3]]
#> [[3]][[1]]
#> [1] 1 3
#> 
#> [[3]][[2]]
#> [1] 7
#> 
#> 
#> [[4]]
#> [[4]][[1]]
#> [1] 2 1
#> 
#> [[4]][[2]]
#> [1] 2
#> 
#> 
#> [[5]]
#> [[5]][[1]]
#> [1] 2 2
#> 
#> [[5]][[2]]
#> [1] 5
#> 
#> 
#> [[6]]
#> [[6]][[1]]
#> [1] 2 3
#> 
#> [[6]][[2]]
#> [1] 8
#> 
#> 
#> [[7]]
#> [[7]][[1]]
#> [1] 3 1
#> 
#> [[7]][[2]]
#> [1] 3
#> 
#> 
#> [[8]]
#> [[8]][[1]]
#> [1] 3 2
#> 
#> [[8]][[2]]
#> [1] 6
#> 
#> 
#> [[9]]
#> [[9]][[1]]
#> [1] 3 3
#> 
#> [[9]][[2]]
#> [1] 9
#> 
#>