Score a package for dependencies

Calculates a regularized score based on the number of dependencies a package has. Convert the number of dependencies NROW(x) into a validation score [0,1] $$ 1 / (1 + exp(-0.5 * (NROW(x) + 19))) $$

Usage

score_dependencies(x)

Arguments

x

number of dependencies

Value

numeric value between 0 (low number of dependencies) and 1 (high number of dependencies)

Details

removed - 1 from the formula e.g. $$ 1 - 1 / (1 + exp(NROW(x)- 19)) $$ to reverse the return value e.g. 0 - low; 1 - high

The scoring function is the classic logistic curve $$ / (1 + exp(-k(x-x[0])) $$ \(x = NROW(x)\), sigmoid midpoint is 20 reverse dependencies, ie. \(x[0] = 19\), and logistic growth rate of \(k = 0.5\).

$$ 1 / (1 + exp(NROW(x)- 19)) $$