table_stability export all the stability indices in the package.
table_stability(
data,
trait,
genotype,
environment,
lambda,
normalize = FALSE,
unit.correct = FALSE
)a data frame containing trait, genotype and environment.
colname of a column containing a numeric vector of interested trait to be analyzed.
colname of a column containing a character or factor vector labeling different genotypic varieties.
colname(s) of a column containing a character or factor vector labeling different environments, if input is a vector containing multiple column names, then it will be merged into single environment column in the function.
the minimal acceptable value of trait that the user expected from crop across environments. Lambda should between the ranges of trait vlaue.
logical, default is FALSE, indicating whether stability indices should be normalized to the range from 0 to 1, where 1 refer to stable and 0 is unstable.
logical, default is FALSE, returning the stability index with unit equals to squared unit of trait; when TRUE, returning stability index with the unit as same as unit of trait.
a data table with multiple stability indices
Combine all stability indices in this package and export as a table, including mean trait, normality of the trait across environment.
D昼㸶ring TF, Reckling M (2018). “Detecting global trends of cereal yield stability by adjusting the coefficient of variation.” European Journal of Agronomy, 99, 30--36. ISSN 1161-0301, doi: 10.1016/j.eja.2018.06.007 . Pinthus MJ (1973). “Estimate of genotypic value: A proposed method.” Euphytica, 22(1), 121--123. ISSN 1573-5060, doi: 10.1007/BF00021563 . Finlay KW, Wilkinson GN (1963). “The analysis of adaptation in a plant-breeding programme.” Australian Journal of Agricultural Research, 14(6), 742--754. doi: 10.1071/AR9630742 . Eberhart SA, Russell WA (1966). “Stability parameters for comparing varieties.” Crop Science, 6(1), 36--40. ISSN 0011-183X, doi: 10.2135/cropsci1966.0011183X000600010011x . Wricke G (1962). “搼㹣ber eine Methode zur Erfassung der 搼㸶kologischen Streubreite in Feldversuchen.” Zeitschrift f昼㹣r Pflanzenz昼㹣chtung, 47, 92--96. R昼㸶mer T (1917). “Sind die ertragdreichen Sorten ertagissicherer?” Mitteilungen der Deutschen Landwirtschaftlichen Gesellschaft, 32(1), 87--89. Hanson WD (1970). “Genotypic stability.” Theoretical and Applied Genetics, 40(5), 226--231. ISSN 1432-2242, doi: 10.1007/BF00285245 . Lin CS, Binns MR (1988). “A superiority measure of cultivar performance for cultivar \(\times\) location data.” Canadian Journal of Plant Science, 68(1), 193--198. ISSN 0008-4220, https://cdnsciencepub.com/doi/10.4141/cjps88-018. Shukla GK (1972). “Some statistical aspects of partitioning genotype environmental components of variability.” Heredity, 29(2), 237--245. Nassar R, H昼㹣hn M (1987). “Studies on estimation of phenotypic stability: Tests of significance for nonparametric measures of phenotypic stability.” Biometrics, 43(1), 45--53. ISSN 0006-341X. Eskridge KM (1990). “Selection of Stable Cultivars Using a Safety-First Rule.” Crop Science, 30(2), 369. ISSN 0011-183X, doi: 10.2135/cropsci1990.0011183X003000020025x .
data(Data)
tb <- table_stability(
data = Data,
trait = "Yield",
genotype = "Genotype",
environment = "Environment",
lambda = median(Data$Yield),
normalize = TRUE,
unit.correct=TRUE)
#> Warning:
#> All of your genotypes didn't pass the Shapiro normality test!
#> Safety_first Index may not be accurate.