example-reduce.md

add <- function(x) Reduce(`+`, x)
list(1,2,3)
#> [[1]]
#> [1] 1
#> 
#> [[2]]
#> [1] 2
#> 
#> [[3]]
#> [1] 3
sum(list(1,2,3))
#> Error in sum(list(1, 2, 3)): invalid 'type' (list) of argument
add(list(1, 2, 3))
#> [1] 6

mat1 <- matrix(runif(9), 3, 3)
mat2 <- matrix(runif(9), 3, 3)
mat3 <- matrix(runif(9), 3, 3)

mat1 + mat2 + mat2
#>           [,1]     [,2]      [,3]
#> [1,] 2.1002139 1.642836 2.2730969
#> [2,] 0.3521676 1.249252 1.4587838
#> [3,] 2.1345248 1.118134 0.3539423

mat_list <- list(mat1, mat2, mat3)

add(mat_list)
#>           [,1]     [,2]      [,3]
#> [1,] 2.0388184 1.295040 1.9468848
#> [2,] 0.2932382 1.037669 1.6180595
#> [3,] 1.3348547 1.490285 0.6191251

^{Created on 2025-07-08 with reprex v2.1.1}

Session info

sessioninfo::session_info()
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