1. Measures of body mass and length are commonly used to derive indices of condition, which are often assumed to reflect the energetic state of an animal and, by extension, to predict its fitness. However, the relationship between condition and fitness is rarely quantified, and the appropriate method(s) for deriving indices of condition are frequently debated. 2. Data from a decade of mark–reca...

in order to providing selection indices using heritability and correlation effective traits on yield and multiple regression an experiment was conducted by 265 f3 families as well as parents and f1 related to gharib × khazar population in 2009 at gonbad high education center fields. days to repining (0.97) and panicle number and flag leaf length (0.66) had maximum and minimum heritability, resp...

The Gini index does not give a strictly consistent scoring function. Therefore, simply maximizing the may lead to wrong model choice. main issue is that rank-based score calibration-sensitive. We show allows for if we restrict it class of auto-calibrated regression models. That is, on models know true maximizes index.