Unfold list columns

Unfold list columns such as coo_list and coe_list, repeat lines if required.

unfold(x, from_col, ...)

Arguments

x	a Momocs object
from_col	column name
...	useless

Note

Differs from tidyr::unnest, in that it adds a "shp" column. Also unpack was already take by tidyr. unfold.list is just dplyr::bind_rows.

See also

press for a related reshaping

Other mom verbs: pick(), press(), slive()

Examples

bot$coo %>% unfold
#> # A tibble: 6,469 x 3
#>        x     y group
#>    <dbl> <dbl> <int>
#>  1    37   561     1
#>  2    40   540     1
#>  3    40   529     1
#>  4    43   508     1
#>  5    46   487     1
#>  6    48   477     1
#>  7    52   456     1
#>  8    54   435     1
#>  9    57   414     1
#> 10    59   403     1
#> # … with 6,459 more rows

bot %>% unfold
#> ℹ unfold.mom_tbl: can only handle a single coo_list, using coo column
#> # A tibble: 6,469 x 5
#>        x     y group type   fake 
#>    <dbl> <dbl> <int> <fct>  <fct>
#>  1    37   561     1 whisky a    
#>  2    40   540     1 whisky a    
#>  3    40   529     1 whisky a    
#>  4    43   508     1 whisky a    
#>  5    46   487     1 whisky a    
#>  6    48   477     1 whisky a    
#>  7    52   456     1 whisky a    
#>  8    54   435     1 whisky a    
#>  9    57   414     1 whisky a    
#> 10    59   403     1 whisky a    
#> # … with 6,459 more rows