# Profit calculation

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## Profit calculation

 Dear guRus Say I have a price vector, P which is P = c(20,50,40,50) for four consecutive days. My initial equity is say \$100 and I re-invest the profits made in each transaction so my equity curve increases. If I go Long on day 1, short and short on day 2, long and long on day 3 and finally short on day 4, how do I calculate the total profits using R? Basically I stay invested at all times. I have simplified a larger problem by giving a small example. Thanks for your kind guidance in advance. Raghu         [[alternative HTML version deleted]] ______________________________________________ [hidden email] mailing list https://stat.ethz.ch/mailman/listinfo/r-helpPLEASE do read the posting guide http://www.R-project.org/posting-guide.htmland provide commented, minimal, self-contained, reproducible code.
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## Re: Profit calculation

 1. Don't double post. (obviously belongs on finance list) 2. Homework? (we don't do homework on r-help) -- Bert On Tue, Jun 19, 2012 at 3:54 PM, Raghuraman Ramachandran < [hidden email]> wrote: > Dear guRus > > Say I have a price vector, P which is P = c(20,50,40,50) for four > consecutive days. > > My initial equity is say \$100 and I re-invest the profits made in each > transaction so my equity curve increases. > > If I go Long on day 1, short and short on day 2, long and long on day 3 and > finally short on day 4, how do I calculate the total profits using R? > Basically I stay invested at all times. > > I have simplified a larger problem by giving a small example. > > Thanks for your kind guidance in advance. > > Raghu > >        [[alternative HTML version deleted]] > > ______________________________________________ > [hidden email] mailing list > https://stat.ethz.ch/mailman/listinfo/r-help> PLEASE do read the posting guide > http://www.R-project.org/posting-guide.html> and provide commented, minimal, self-contained, reproducible code. > -- Bert Gunter Genentech Nonclinical Biostatistics Internal Contact Info: Phone: 467-7374 Website: http://pharmadevelopment.roche.com/index/pdb/pdb-functional-groups/pdb-biostatistics/pdb-ncb-home.htm        [[alternative HTML version deleted]] ______________________________________________ [hidden email] mailing list https://stat.ethz.ch/mailman/listinfo/r-helpPLEASE do read the posting guide http://www.R-project.org/posting-guide.htmland provide commented, minimal, self-contained, reproducible code.