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Alex Rivera
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I have to calculate the return of a vector that gives a historical price series of a stock. The vector is of a form: a <- c(10.25, 11.26, 14, 13.56) I need to calculate daily gain/loss (%) - i.e. what is the gain it has from 10.25 to 11.26 then from 11.26 to 14 etc. Is there a function to calculate this automatically?
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