| Type: | Package | 
| Title: | Efficient Block Designs for 3-Level Factorial Experiments in Block Size 3 | 
| Version: | 0.1.1 | 
| Description: | Provides functions to construct efficient block designs for 3-level factorial experiments in block size 3. The designs ensure the estimation of all main effects and two-factor interactions in minimum number of replications. For more details, see Dey and Mukerjee (2012) <doi:10.1016/j.spl.2012.06.014> and Dash, S., Parsad, R. and Gupta, V.K. (2013) <doi:10.1007/s40003-013-0059-5>. | 
| License: | GPL-3 | 
| Encoding: | UTF-8 | 
| RoxygenNote: | 7.3.2 | 
| Imports: | dplyr, stats | 
| Depends: | R (≥ 3.6) | 
| NeedsCompilation: | no | 
| Packaged: | 2025-09-09 08:48:46 UTC; sunil | 
| Author: | Sunil Kumar Yadav [aut], Sukanta Dash [aut, cre] | 
| Maintainer: | Sukanta Dash <sukanta.iasri@gmail.com> | 
| Repository: | CRAN | 
| Date/Publication: | 2025-09-14 15:50:02 UTC | 
Efficient Block Designs for 3-Level Factorial Experiments in Block Size 3
Description
Constructs efficient block designs for 3-level factorial experiments in block size 3, ensuring estimation of all main effects (with full efficiency) and two-factor interactions.
Usage
bdf3.mef(n_factors, show_efficiency = TRUE)
Arguments
| n_factors | An integer specifying the number of factors. | 
| show_efficiency | Logical. If  | 
Details
This function generates efficient block designs for 3-level factorial experiments in block size 3. The resulting designs allow estimation of all main effects (with full efficiency) and two-factor interactions in minimum number of replications.
Value
A list containing:
| blocks | The chosen principal blocks | 
| confounded_effects | The confounded main effects and two-factor interactions | 
| efficiency_factors | Efficiency factors of all main effects and two-factor interactions (if  | 
| design | The final block design for the given number of factors | 
References
Dey, A. and Mukerjee, R. (2012). Efficiency factors for natural contrasts in partially confounded factorial designs. Statistics and Probability Letters, 82(12), 2180–2188. <doi:10.1016/j.spl.2012.06.014>
Dash, S., Parsad, R. and Gupta, V. K. (2013). Row–column designs for 2^n factorial 2-colour microarray experiments for estimation of main effects and two-factor interactions with orthogonal parameterization. Agricultural Research, 2(2), 172-182. <doi:10.1007/s40003-013-0059-5>
See Also
Examples
bdf3.mef(2)
Efficient Block Designs for 3-Level Factorial Experiments in Block Size 3
Description
Constructs efficient block designs for 3-level factorial experiments in block size 3, ensuring estimation of all main effects and two-factor interactions.
Usage
bdf3.mep(n_factors, show_efficiency = TRUE)
Arguments
| n_factors | An integer specifying the number of factors. | 
| show_efficiency | Logical. If  | 
Details
This function generates efficient block designs for 3-level factorial experiments in block size 3. The resulting designs allow estimation of all main effects and two-factor interactions in minimum number of replications.
Value
A list containing:
| blocks | The chosen principal blocks | 
| confounded_effects | The confounded main effects and two-factor interactions | 
| efficiency_factors | Efficiency factors of all main effects and two-factor interactions (if  | 
| design | The final block design for the given number of factors | 
References
Dey, A. and Mukerjee, R. (2012). Efficiency factors for natural contrasts in partially confounded factorial designs. Statistics and Probability Letters, 82(12), 2180–2188. <doi:10.1016/j.spl.2012.06.014>
Dash, S., Parsad, R. and Gupta, V. K. (2013). Row–column designs for 2^n factorial 2-colour microarray experiments for estimation of main effects and two-factor interactions with orthogonal parameterization. Agricultural Research, 2(2), 172-182. <doi:10.1007/s40003-013-0059-5>
See Also
Examples
bdf3.mep(2)