ssg1to3 | R Documentation |
It computes the response to selection after 1, 2 and 3-stage selection
ssg1to3(
nstage,
TC,
nGF,
Vgl,
Vgs,
Vgls,
Ve,
TG1,
TG2 = NA,
TG3 = NA,
loc1,
loc2 = NA,
loc3 = NA,
rep1,
rep2 = NA,
rep3 = NA
)
nstage |
Number of selection stages (1, 2, or 3). |
TC |
Total test capacity as number of plots for the entire multiple environmental trial series. |
nGF |
Number of finally selected clones. |
Vgl |
Genotypic x location variance ratio with respect to genotypic variance. |
Vgs |
Genotypic x season variance ratio with respect to genotypic variance. |
Vgls |
Genotypic x location x season variance ratio with respect to genotypic variance. |
Ve |
Error variance ratio with respect to genotypic variance. |
TG1 |
Number of genotypes tested in the first season. |
TG2 |
Number of genotypes tested in the second season. |
TG3 |
Number of genotypes tested in the third season. |
loc1 |
Number of locations in the first season. |
loc2 |
Number of locations in the second season. |
loc3 |
Number of locations in the third season. |
rep1 |
Number of replications in the first season. |
rep2 |
Number of replications in the second season. |
rep3 |
Number of replications in the third season. |
It computes the response to selection in standardized units
after 1-stage selection with up to three seasons of testing,
2-stage selection with two seasons of testing, and 3-stage
selection with three seasons of testing. If no genotypes are tested at
season 2 or 3, the number of tested genotypes, the number of locations,
and the number of replications must be left as NA
.
It returns the response to selection in standardized units.
Bert De Boeck, Raul Eyzaguirre
# One stage, three seasons
ssg1to3(1, 2268, 3, 0.189, 0.103, 0.603, 1.162, 42, 42, 42, 9, 9, 9, 2, 2, 2)
# One stage, two seasons
ssg1to3(1, 2268, 3, 0.189, 0.103, 0.603, 1.162, 63, 63, NA, 9, 9, NA, 2, 2, NA)
# One stage, one season
ssg1to3(1, 2268, 3, 0.189, 0.103, 0.603, 1.162, 126, NA, NA, 9, NA, NA, 2, NA, NA)
# Two stages, two seasons
ssg1to3(2, 540, 3, 0.189, 0.103, 0.603, 1.162, 144, 9, NA, 3, 6, NA, 1, 2, NA)
# Three stages, three seasons
ssg1to3(3, 2268, 3, 0.189, 0.103, 0.603, 1.162, 499, 77, 8, 1, 7, 12, 2, 2, 2)
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