Try to transform an R object to a format supported by the posterior package.
as_draws(x, ...)
is_draws(x)(draws) A draws object or another R object for which the method
is defined.
Arguments passed to individual methods (if applicable).
If possible, a draws object in the closest supported format to x.
The formats are linked to in the See Also section below.
The class "draws" is the parent class of all supported formats,
which also have their own subclasses of the form "draws_{format}" (e.g.
"draws_array").
Other formats:
draws_array(),
draws_df(),
draws_list(),
draws_matrix(),
draws_rvars()
# create some random draws
x <- matrix(rnorm(30), nrow = 10)
colnames(x) <- c("a", "b", "c")
str(x)
#> num [1:10, 1:3] -0.963 -0.814 -0.195 1.916 0.702 ...
#> - attr(*, "dimnames")=List of 2
#> ..$ : NULL
#> ..$ : chr [1:3] "a" "b" "c"
# transform to a draws object
y <- as_draws(x)
str(y)
#> 'draws_matrix' num [1:10, 1:3] -0.963 -0.814 -0.195 1.916 0.702 ...
#> - attr(*, "dimnames")=List of 2
#> ..$ draw : chr [1:10] "1" "2" "3" "4" ...
#> ..$ variable: chr [1:3] "a" "b" "c"
#> - attr(*, "nchains")= int 1
# remove the draws classes from the object
class(y) <- class(y)[-(1:2)]
str(y)
#> num [1:10, 1:3] -0.963 -0.814 -0.195 1.916 0.702 ...
#> - attr(*, "dimnames")=List of 2
#> ..$ draw : chr [1:10] "1" "2" "3" "4" ...
#> ..$ variable: chr [1:3] "a" "b" "c"
#> - attr(*, "nchains")= int 1