Produces plots for sysVarIn when sysVar is continuous and there are 4 profiles
indiv4profilesCont(prob, sysVar0name, sysVar1name)A dataframe created internally by the "sysVarInPlots" function.
The name created by sysVarInPlots referring to the system variable for partner-0.
The name created by sysVarInPlots referring to the system variable for partner-1.
A list of 4 plots showing the simple slopes for each of the profiles.