Nothing
Code
recommended_packages()
Output
[1] "boot" "class" "cluster" "codetools" "foreign"
[6] "KernSmooth" "lattice" "MASS" "Matrix" "mgcv"
[11] "nlme" "nnet" "rpart" "spatial" "survival"
Code
cat0("foo", "bar", "\n")
Output
foobar
Code
cat0("foo", "bar", "\n", sep = " ")
Output
foo bar
Code
lapply_rows(mtcars[1:3, ], function(row) row)
Output
[[1]]
mpg cyl disp hp drat wt qsec vs am gear carb
Mazda RX4 21 6 160 110 3.9 2.62 16.46 0 1 4 4
[[2]]
mpg cyl disp hp drat wt qsec vs am gear carb
Mazda RX4 Wag 21 6 160 110 3.9 2.875 17.02 0 1 4 4
[[3]]
mpg cyl disp hp drat wt qsec vs am gear carb
Datsun 710 22.8 4 108 93 3.85 2.32 18.61 1 1 4 1
Code
rbind_expand(data_frame(), data_frame())
Output
data frame with 0 columns and 0 rows
Code
rbind_expand(data_frame(), data_frame(foo = 1:2))
Output
# A data frame: 2 x 1
foo
<int>
1 1
2 2
Code
rbind_expand(data_frame(bar = c("a", "b")), data_frame())
Output
# A data frame: 2 x 1
bar
<chr>
1 a
2 b
Code
rbind_expand(data_frame(foo = 1:2), data_frame(foo = 3:4))
Output
# A data frame: 4 x 1
foo
<int>
1 1
2 2
3 3
4 4
Code
rbind_expand(data_frame(foo = 1:2), data_frame(bar = 3:4))
Output
# A data frame: 4 x 2
foo bar
<int> <int>
1 1 NA
2 2 NA
3 NA 3
4 NA 4
Code
rbind_expand(data_frame(foo = list(1, 2), bar = letters[1:2]), data_frame(foo = list(
3, 4), baz = list("x", "y")))
Output
# A data frame: 4 x 3
foo bar baz
<list> <chr> <list>
1 <dbl [1]> a <lgl [1]>
2 <dbl [1]> b <lgl [1]>
3 <dbl [1]> <NA> <chr [1]>
4 <dbl [1]> <NA> <chr [1]>
Code
once_per_session(message("hello"))
Message
hello
Code
once_per_session(message("hello"))
once_per_session(reset = TRUE)
once_per_session(message("hello"))
Message
hello
Code
once_per_session(message("hello"))
Code
format_error_with_stdout(err)
Output
[1] "! message (output not available)"
Code
format_error_with_stdout(err)
Output
[1] "! message, stdout + stderr:" ""
[3] "OE> this is" "OE> the"
[5] "OE> standard output"
Code
last_stdout_lines(letters[1:3], "stdout + stderr")
Output
[1] ", stdout + stderr:" "" "E> a"
[4] "E> b" "E> c"
Code
last_stdout_lines(letters[1:11], "stdout + stderr")
Output
[1] ", stdout + stderr (last 10 lines):" ""
[3] "E> b" "E> c"
[5] "E> d" "E> e"
[7] "E> f" "E> g"
[9] "E> h" "E> i"
[11] "E> j" "E> k"
Code
last_stdout_lines(letters[1:11], "stdout + stderr")
Output
[1] ", stdout + stderr:" "" "E> a"
[4] "E> b" "E> c" "E> d"
[7] "E> e" "E> f" "E> g"
[10] "E> h" "E> i" "E> j"
[13] "E> k"
Code
ansi_align_width(c("foobar", cli::col_red("bar")))
Output
<cli_ansi_string>
[1] foobar
[2] bar
Code
ansi_align_width(c("foobar", cli::col_red("bar")))
Output
<cli_ansi_string>
[1] foobar
[2] [31mbar[39m
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