seq_all: Supported cross-over designs
In mjg211/xover: Design and analysis of cross-over clinical trials

Description Usage Arguments Details Value Examples

Determine the cross-over designs supported by the seq_#() functions in xover.

1	seq_all(D = 2, J = 2, K = 2, summary = T)

`D`	The number of treatments. Must be a single `numeric` integer greater than or equal to two. Defaults to `2`.
`J`	The number of periods. Must be a `numeric` vector of integers, whose values are greater than or equal to two. Defaults to `2`.
`K`	The number of sequences. Must be a `numeric` vector of integers, whose values are greater than or equal to two. Defaults to `2`.
`summary`	A `logical` variable indicating whether a summary of the function's progress should be printed to the console. Defaults to `T`.

seq_all() supports the determination of the cross-over designs supported by the seq_#() functions in xover for a specified number of treatments (see D), periods (see J), and sequences (see K).

If at least one supported design is identified for the chosen input parameters, a tibble describing the supported sequences. Otherwise, it will be NULL. In either case, the returned object will have class xover_seq.

# Available sequences for three-treatment three-period trials with between
# two and 20 sequences
three_by_three        <- seq_all(D = 3, J = 3, K = 2:20)
# Available sequences for three-treatment two-period trials with between
# two and 20 sequences
three_by_two          <- seq_all(D = 3, J = 2, K = 2:20)
# Available sequences for three-treatment two- or three-period trials with
between two and 20 sequences
three_by_two_or_three <- seq_all(D = 3, J = c(2, 3), K = 2:20)