On Fri, Jun 3, 2011 at 11:48 AM, amit jain <budd...@indiatimes.com> wrote: > > Hi All, > Before writing a simple formula intereter in R myself, i wanted to find out > if any one has done it before. I could not locate it myself. I am looking for > something like this - take a dataframe and a simple formula string as input > and gives an output with formula applied on different columns of dataframe ( > even better if it is time series compatibe) > > A crude and bad example is as below > http://www.codeproject.com/KB/recipes/formulainterpreter.aspx > > I will appreciate if anyone can provide any pointers/direction >
Try this: fo <- "x+y/2" eval(parse(text = fo), list(x = 1, y = 2)) -- Statistics & Software Consulting GKX Group, GKX Associates Inc. tel: 1-877-GKX-GROUP email: ggrothendieck at gmail.com ______________________________________________ R-help@r-project.org 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.
