Evaluate expression and captures output as characters, then concatenate as one single string.
Usage
capture_expr(expr, collapse = "\n", type = c("output", "message"), ...)Arguments
- expr
R expression
- collapse
character to concatenate outputs
- type, ...
passed to
capture.output
Value
Character of length 1: output captured by
capture.output
Examples
x <- data.frame(a=1:10)
x_str <- capture_expr({
print(x)
})
x_str
#> [1] " a\n1 1\n2 2\n3 3\n4 4\n5 5\n6 6\n7 7\n8 8\n9 9\n10 10"
cat(x_str)
#> a
#> 1 1
#> 2 2
#> 3 3
#> 4 4
#> 5 5
#> 6 6
#> 7 7
#> 8 8
#> 9 9
#> 10 10