min y value before SMBO is started, based on the
initial design only.
Arguments
modelList
ml/dl model (character)
runNr
run number (character)
directory
location of the (non-default, e.g., tuned) parameter file. Note:
load result only when directory is specified, otherwise use (only one!) result from the workspace.
maxY
max number of y values. If NULL then all y values are used.