The model used for this is the logistic model, fitting observed injury/lethality statistics to the base-10 logarithm of the maximum compression stress during a simulated impact event.
stressFromLethalityIndex(injury)numerical value or vector, giving threat of injury (in range 0 to 1).
whale compression stress, in Pascals.
Other functions dealing with Whale Lethality index:
lethalityIndexFromStress()
stressFromLethalityIndex(0.5) # approx. 254000 Pa, i.e. parameters()$logistic$tau50
#> [1] 239883.3