data set ‘sp500’ not found
data(sp500) Warning message: In data(sp500) : data set ‘sp500’ not found
I think you need to precise from which package this dataset comes from and do data(sp500, package = "packagename". Or load the package, then call data(...)
data(sp500, package = "packagename"
data(...)
it seems there are several sources possible https://www.rdocumentation.org/search?q=sp500&latest=
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