Check the output of the diff column

## Usage

check_diff(.c, columns = c("ops_number", "function"))

## Arguments

.c

A chronicle object.

columns

Columns to select for the output. Defaults to c("ops_number", "function").

## Value

A data.frame with the selected columns and column "diff_obj".

## Details

diff is an option argument to the record() function. When diff = "full", a diff of the input and output of the decorated function gets saved, and if diff = "summary" only a summary of the diff is saved.

## Examples

r_subset <- record(subset, diff = "full")
result <- r_subset(mtcars, select = am)
check_diff(result) # <- this is the data frame listing the operations and the accompanying diffs
#>   ops_number function                                            diff_obj
#> 1          1   subset <S4 class ‘Diff’ [package “diffobj”] with 14 slots>
check_diff(result)$diff_obj # <- actually look at the diffs #> [[1]] #> < str(input) > str(output) #> @@ 1,12 @@ @@ 1,2 @@ #> < 'data.frame': 32 obs. of 11 variab > 'data.frame': 32 obs. of 1 variabl #> : les: : e: #> <$ mpg : num  21 21 22.8 21.4 18.7 18  ~
#> : .1 14.3 24.4 22.8 19.2 ...             ~
#> <  $cyl : num 6 6 4 6 8 6 8 4 4 6 ... ~ #> <$ disp: num  160 160 108 258 360 ...  ~
#> <  $hp : num 110 110 93 110 175 105 ~ #> : 245 62 95 123 ... ~ #> <$ drat: num  3.9 3.9 3.85 3.08 3.15   ~
#> : 2.76 3.21 3.69 3.92 3.92 ...           ~
#> <  $wt : num 2.62 2.88 2.32 3.21 3.4 ~ #> : 4 ... ~ #> <$ qsec: num  16.5 17 18.6 19.4 17 ..  ~
#> : .                                      ~
#> <  $vs : num 0 0 1 1 0 1 0 1 1 1 ... ~ #>$ am  : num  1 1 1 0 0 0 0 0 0 0 ...     $am: num 1 1 1 0 0 0 0 0 0 0 ... #> <$ gear: num  4 4 4 3 3 3 3 4 4 4 ...  ~
#> <  \$ carb: num  4 4 1 1 2 1 4 2 2 4 ...  ~
#>