good morning This question is not a stats question per say but a data management and lattice plotting problem. I apologize now if I'm asking an inappropriate question to this gracious group.
I'm need to bring in approximately 100 *.dbf files into R but I'm having difficultly understanding several examples I've tracked down regarding this procedure and could benefit from your suggestions. One example I've found does the following: DF <- lappy(dir(pattern="file.*\\.txt"), read.table, sep=";". header= TRUE) names(DF) <- paste("data", seq_along(DF), sep = "") This solution will not work for me for at least 2 reasons: 1) I need to modify the files after I import them by adding three new parameters to each file prior to combining them into a common data.frame For example one of my files is called SRF_DryDry_stats.dbf. The name of the file tells me that it refers to two conditions; 1) SRF = an indictor region field, and 2) DryDry = dry hydrological conditions. I also know that the data refer to a particular species. The data in the file include some general summarizing statistics (Min, Max, Range, Mean, and STD). After modifying the file, I need a species field, the SRF field and the hydro condition parameters in the file. After this modification, I need to "cbind" these files into a common file. 2) The goal is to use the common file to produce a series of lattice barchart graphs using the three new parameters as factors and plotting the some of the statistics in the lattice call statements. Is there a clean way of accomplishing these tasks or should the brute force approach be taken? Steve Friedman Ph. D. Spatial Statistical Analyst Everglades and Dry Tortugas National Park 950 N Krome Ave (3rd Floor) Homestead, Florida 33034 steve_fried...@nps.gov Office (305) 224 - 4282 Fax (305) 224 - 4147 ______________________________________________ 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.