plotIAI_mod: Plot for the fitted object from model selection
In lshen1/drexplorer2: Dose-response Explorer2

Plot for the fitted object from model selection

1	plotIAI_mod(fitL, plotFA = F, mixtureDose = c("DualAxisA"), ylim = c(0, 1.2))

`fitL`	the fitted result from fitIAI_mod().
`plotFA`	whether to plot FA value; if FALSE, dose will be used as x-axis for IAI estimates
`mixtureDose`	options to plot mixture dose. This can be (1) 'A+B': mixture dose is the sum of the 2 drug doses, (2) 'A': mixture dose represented by drug 1 dose, (3) 'B': mixture dose represented by drug 2 dose, (4) 'DualAxisA' where dual axis is used for drug 1 and drug 2 dose but mixture represented by drug 1. This is useful if the two drugs have very different doses, (5) 'DualAxisB', similar to 'DualAxisA' but mixture is represented by drug 2 dose.
`ylim`	y axis limits. Default is set to 0 to 1.2.