On Tue, Jul 18, 2006 at 12:25:47PM -0300, raul sanchez wrote: > I have the Barro-Lee data set which contains 98 countries and I want > to run the regressions only for the Latin America countries, so what > do you recomend? How can I delete all the other countries or how can > I select the countries of Lat. Am. thank you
> this is the list of countries > SHCODE COUNTRY NAME WBCTRY (1) (2) > _________________________________________________________________ > > 1 Algeria DZA + + > 2 Angola AGO - - > 3 Benin BEN - + > 4 Botswana BWA + + > 5 Burkina Faso HVO - - > 6 Burundi BDI + - > 7 Cameroon CMR + + [...] Assuming the data is stored in a data frame called bl you could do something like this: First you generate a list of all countries you are interested in - e.g. > set = c('Benin', 'Congo', 'Mali') And then you subset the data frame with it > bl[bl$COUNTRY %in% set, ] SHCODE COUNTRY NAME WBCTRY X.1. X.2. 3 3 Benin BEN - + NA 12 12 Congo COG - + NA 26 26 Mali MLI - + NA cu Philipp -- Dr. Philipp Pagel Tel. +49-8161-71 2131 Dept. of Genome Oriented Bioinformatics Fax. +49-8161-71 2186 Technical University of Munich Science Center Weihenstephan 85350 Freising, Germany and Institute for Bioinformatics / MIPS Tel. +49-89-3187 3675 GSF - National Research Center Fax. +49-89-3187 3585 for Environment and Health Ingolstädter Landstrasse 1 85764 Neuherberg, Germany http://mips.gsf.de/staff/pagel ______________________________________________ R-help@stat.math.ethz.ch 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.