assignStrainTraits function

Internal function to assign stochastic strain traits

Produces a random distribution of trait values where the mean is groupVal and the range is determined by strainOptions$percentTraitRange (if not pHtrait) and by maxPHshift if it is the pHtrait (see strainOptions)

assignStrainTraits(
  numStrains,
  groupVal,
  strainOptions,
  parName = "unspecified param",
  pHtrait = FALSE,
  gname = "None"
)

Arguments

• numStrains: Integer. Number of strains per group
• groupVal: Scalar. Group parameter value i.e. the mean parameter value
• strainOptions: list from microPopModel inputs. Contains 'distribution' i.e. the shape of the distribution ('normal' or 'uniform'). If it is not for a pH trait and the distribution is 'normal' then its std dev is groupValpercentRange/200, if distribution is 'uniform' then its range is groupVal(1 +/- percentRange/100). For a pH trait, 'maxPHshift' is the max shift in pH units and 'normal' has std dev = maxPHshift/2, and 'uniform' distribution has range groupVal +/- maxPHshift;
• parName: Name of parameter. This is only used to help with error catching
• pHtrait: TRUE/FALSE whether or not trait is the pH trait.
• gname: Microbe name (for indexing strainOptions$percentTraitRange)

Returns

vector of values for each strain for one parameter