| conf.design-package | Confounded Factorial Block Design | 
| conf.design | Construct symmetric confounded factorial designs. | 
| conf.set | Find all confounded effects | 
| direct.sum | Form the direct sum of designs. | 
| factorize | S3 generic function and methods for factorization. | 
| factorize.default | S3 generic function and methods for factorization. | 
| factorize.factor | S3 generic function and methods for factorization. | 
| join | Amalgamate two or more factors. | 
| primes | Prime numbers | 
| rjoin | Concatenate designs by rows. |