“If you've got a large amount of data, this won't be a…” — Chat With Traders at 48:34
“If you've got a large amount of data, this won't be a problem, though, because essentially the task there is to see how well it performs by building the model, otherwise known as training, on one subset of your data set and then testing it to see how well it performs on this, what's called an outer sample or holdout…”
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