R-squared

Good evening, I am Marta Colombo, student of the "Politecnico" in Milan and I'm looking for some help.I'd like to know how I can see R-Squared using loess because in the output there are only:
number of observations
equivalent number of parameters 
residual standard error
and even looking at the summary I wasn't able to find it.
Thank you very much for the attention,
Marta Colombo



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