Description Usage Arguments Value Examples

Obtain the Number of Possible Permutations from a Random Assignment Declaration

1 | ```
obtain_num_permutations(declaration)
``` |

`declaration` |
A random assignment declaration, created by |

a scalar

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 | ```
# complete
declaration <- declare_ra(N = 4)
perms <- obtain_permutation_matrix(declaration)
dim(perms)
obtain_num_permutations(declaration)
# blocked
blocks <- c("A", "A", "B", "B", "C", "C", "C")
declaration <- declare_ra(blocks = blocks)
perms <- obtain_permutation_matrix(declaration)
dim(perms)
obtain_num_permutations(declaration)
# clustered
clusters <- c("A", "B", "A", "B", "C", "C", "C")
declaration <- declare_ra(clusters = clusters)
perms <- obtain_permutation_matrix(declaration)
dim(perms)
obtain_num_permutations(declaration)
# large
declaration <- declare_ra(20)
choose(20, 10)
perms <- obtain_permutation_matrix(declaration)
dim(perms)
``` |

DeclareDesign/randomizr documentation built on June 2, 2019, 3:50 p.m.

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