Description Usage Arguments Details Value Author(s) References See Also Examples
View source: R/mainfunctions.R
Checks whether or not the input is a proper balanced (t-1)-spread of PG(n-1,2)
.
1 |
spr |
A balanced spread of |
printstatements |
A Boolean indicating whether or not to print possible reasons for not being a spread if the input is not a spread. |
Checks whether or not the input is a proper balanced (t-1)-spread of PG(n-1,2)
. The spread should be formatted as a 3-dimensional array with spr[i,j,k]
indicating whether or not the i
th basic factor is present in the j
th effect of the k
th flat of spr
. See Spencer et al. (2019) for details.
A Boolean indicating whether or not the input is a spread.
Neil Spencer, Pritam Ranjan, Franklin Mendivil
Spencer, N.A., Ranjan, P., and Mendivil, F., (2019), "Isomorphism Check for 2^n Factorial Designs with Randomization Restrictions", Journal of Statistical Theory and Practice, 13(60),1-24 [https://doi.org/10.1007/s42519-019-0064-5]
is.star
for checking if the input is a balanced covering star.
checkSpreadIsomorphism
for checking the isomorphism of balanced spreads.
checkStarIsomorphism
for checking the isomorphism of balanced covering stars.
1 2 3 4 5 6 7 8 9 | ## Example 1: checking whether "spreadn4t2a" is a proper spread
data(spreadn4t2a)
is.spread(spreadn4t2a)
## Example 2: checking whether "starn5t3a" is a proper spread
data(starn5t3a)
is.spread(starn5t3a)
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