[R] Adding a title to a plot

[DY Kim]

Greetings!

I am currently using R x64 4.0.4.

I used the box-cox power transformation to create a range of lambdas and
log-likelihood values using the equation.

b1=boxcox (DV ~ IV1 + IV2, data= newdata)

The above codes automatically created a plot with lambdas and
log-likelihood values.

I want to add a main and subtitle to the plot. Would you please provide me
with codes? Any help would be appreciated. Thank you.

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