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Concatenation operator

Source: R/operators.R
op_concat.Rd

For matrices a block-diagonal matrix is created. For all other data types he operator is a wrapper of paste.

Usage

x %++% y

Arguments

x

First object

y

Second object of same class

Details

Concatenation operator

See also

blockdiag, paste, cat,

Author

Klaus K. Holst

Examples

## Block diagonal
matrix(rnorm(25),5)%++%matrix(rnorm(25),5)
#>                                                                      
#>  -0.2357066  1.1519118  1.7579031 -1.0655906  0.26613736  0.000000000
#>  -0.5428883  0.9921604  0.5607461 -1.5637821 -0.37670272  0.000000000
#>  -0.4333103 -0.4295131 -0.4527840  1.1565370  2.44136463  0.000000000
#>  -0.6494716  1.2383041 -0.8320433  0.8320471 -0.79533912  0.000000000
#>   0.7267507 -0.2793463 -1.1665705 -0.2273287 -0.05487747  0.000000000
#>   0.0000000  0.0000000  0.0000000  0.0000000  0.00000000 -1.539950042
#>   0.0000000  0.0000000  0.0000000  0.0000000  0.00000000 -0.928567035
#>   0.0000000  0.0000000  0.0000000  0.0000000  0.00000000 -0.294720447
#>   0.0000000  0.0000000  0.0000000  0.0000000  0.00000000 -0.005767173
#>   0.0000000  0.0000000  0.0000000  0.0000000  0.00000000  2.404653389
#>                                               
#>   0.0000000  0.0000000  0.00000000  0.00000000
#>   0.0000000  0.0000000  0.00000000  0.00000000
#>   0.0000000  0.0000000  0.00000000  0.00000000
#>   0.0000000  0.0000000  0.00000000  0.00000000
#>   0.0000000  0.0000000  0.00000000  0.00000000
#>   0.7635935 -0.4115108 -0.22426789  0.50360797
#>  -0.7990092  0.2522234  0.37739565  1.08576936
#>  -1.1476570 -0.8919211  0.13333636 -0.69095384
#>  -0.2894616  0.4356833  0.80418951 -1.28459935
#>  -0.2992151 -1.2375384 -0.05710677  0.04672617
## String concatenation
"Hello "%++%" World"
#> [1] "Hello  World"
## Function composition
f <- log %++% exp
f(2)
#> [1] 2