I have financial data on a a set of firms, with a quarterly period (fundamental data). The data spans 10 years, and four quarters per year. The present file (.csv) reads the Date columns as "200706" for the second quarter of 2007; "199809" for the third quarter of 1997.
Is there a way I can convert it to something like "2007 Q2", "1998 Q3"? I am aware of the yearqtr feature of the zoo package and ts also has some facility to represent frequency. However, the problem is that, my data isn't exactly a time series right now. In each quarterly file, the date column has the same value f.e 200706, however each row contains fundamental data of a different firm. Ultimately, I intend to aggregate the 40 or so files into one data frame. So is it possible to read off the 199806 as a 'date' variable, with a quarterly frequency? The reason why I am keen on this is that I can then shape my further sub-setting in a form like which(... date == "1998 Q2") or so instead of forcing myself to write "1998/06/30" which would indicate end of second quarter (I just think that is redundant). Thanks in anticipation. Best Regards Vishal Belsare ______________________________________________ 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.
