Fit kmax for multiple scenario rows

Usage

fitKmaxScenarios(
  records,
  draws,
  weights,
  Da,
  useParallel = FALSE,
  workers = 1L
)

records: data.table of kmax scenario rows. Each row has the contract required by fitKmaxScenario().
draws: data.table with TR, IDg, ky, s, Dn, and IDn. PGA.s, the sampled PGA in g, is required for exact recovery of a flat AM88 realization.
weights: named numeric vector of active Newmark model weights by IDn.
Da: numeric displacement targets in cm.
useParallel: logical. Use fork parallelism when available.
workers: integer worker count when useParallel = TRUE.

Row-bound data.table of kmax results. Every scenario uses the standard p family documented by fitKmaxScenario().