This is a more detailed description of the problem, I have written the following lines of code to read the files
data1=("c:\\mydata\\file1.txt") data2=("c:\\mydata\\file2.txt") file 1 has fields like patientID, Name which are common in file2, however not all fields are common i would like to create file3.txt with the merged data fields, i hope this is clear, and i thank everyone, who has responded so far. Alex Jameson Student, University of Colorado [[alternative HTML version deleted]] ______________________________________________ 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.