calculation of disease severity

This function calculate the disease severity, as the mean value of severity measurements for diseased units ONLY (leaves, bunches, plants...). The disease severity is the area of a sampling unit affected by the disease, expressed as a percentage of the total area.

Utilisation

severity_diseased(vecteur)

Arguments

vecteur

a numeric vector of disease severity observations in percentage

Valeur de retour

a numeric value of intensity

Exemples

vec <- c(100, 20, 30, 0, 5, 0, 0)
severity_diseased(vec)
#> [1] 38.75