search for: stockprice

Displaying 1 result from an estimated 1 matches for "stockprice".

Did you mean: stockpile
2009 Feb 09
1
sapply
Newbie question sorry (have tried the help pages I promise) I have a dataframe (date,stockprice) say and looking how I might get the return of: dataframe (difference in days, change in stock price) using sapply - I require a very simple function and don't really want to go down the zoo and quant mod route Regards glenn [[alternative HTML version deleted]]