Performs a stability analysis based on Thennarasu (1995) statistics.
Thennarasu(.data, env, gen, resp, verbose = TRUE)
.data | The dataset containing the columns related to Environments, Genotypes, replication/block and response variable(s). |
---|---|
env | The name of the column that contains the levels of the environments. |
gen | The name of the column that contains the levels of the genotypes. |
resp | The response variable(s). To analyze multiple variables in a
single procedure use, for example, |
verbose | Logical argument. If |
An object of class Thennarasu
, which is a list containing the results
for each variable used in the argument resp
. For each variable, a
tibble with the columns GEN, N1, N2, N3 and N4 is returned.
Thennarasu, K. 1995. On certain nonparametric procedures for studying genotype x environment interactions and yield stability. Ph.D. thesis. P.J. School, IARI, New Delhi, India.
Tiago Olivoto tiagoolivoto@gmail.com
#> Variable GY #> --------------------------------------------------------------------------- #> Thennarasu's stability indexes #> --------------------------------------------------------------------------- #> # A tibble: 10 x 11 #> GEN Y Y_R N1 N1_R N2 N2_R N3 N3_R N4 N4_R #> <chr> <dbl> <dbl> <dbl> <dbl> <dbl> <dbl> <dbl> <dbl> <dbl> <dbl> #> 1 G1 2.60 6 2.57 8 0.367 5 0.429 4 0 1.5 #> 2 G10 2.47 10 3.71 10 0.531 7 0.577 7 0.0032 4.5 #> 3 G2 2.74 3 2.43 5.5 0.540 8 0.634 8 0.014 8 #> 4 G3 2.96 2 2 2.5 0.667 9 0.862 9 0.0085 6 #> 5 G4 2.64 5 1.93 1 0.321 1 0.402 2 0.0147 9 #> 6 G5 2.54 7 2.71 9 0.339 2 0.384 1 0 1.5 #> 7 G6 2.53 8 2.43 5.5 0.347 3 0.411 3 0.0032 4.5 #> 8 G7 2.74 4 2.29 4 0.508 6 0.564 6 0.0022 3 #> 9 G8 3.00 1 2 2.5 1 10 1.12 10 0.0149 10 #> 10 G9 2.51 9 2.5 7 0.357 4 0.436 5 0.00960 7 #> --------------------------------------------------------------------------- #> #># }