Add seed string to simulation model data.table

This is an internal NMsim function.

Usage

NMseed(models, nseeds, dist, values, fun.seed = seedFunDefault)

models: A data.frame containing model paths etc as created by NMsim().
nseeds: Number of seeds in each simulation control stream. Default is to match length of dist.
dist: Distribution of random sources. These character strings will be pasted directly into the Nonem control streams after the seed values. Default is "" which means one normal distribution. dist=c("","UNIFORM") will give two seeds with random sources following a normal and a uniform distribution.
values: Optionally, seed values. This can be a data.frame with as many columns as random sources.

An updated data.table with simulation model information including seed strings.