Hello everyone, I've downloaded Jeffrey Breen's R package "zipcode," which has the latitude and longitude for all of the US zip codes. So, this is a data.frame with 43,191 observations. That's one data frame in my environment.
Then, I have another data.frame with over 100,000 observations that look like this: waltham, Massachusetts 02451 Columbia, SC 29209 Wheat Ridge , Colorado 80033 Charlottesville, Virginia 22902 Fairbanks, AK 99709 Montpelier, VT 05602 Dobbs Ferry, New York 10522 Henderson , Kentucky 42420 The spaces represent absences in the column. Regardless, I need to figure out how to write a code that would, presumably, match the zipcodes and produce another column to the data frame with the latitude and longitude. So, for example, the code would recognize 02451 above, and, in the the column next to it, the code would write 42.3765° N, 71.2356° W in the column next to it, since that's the latitude and longitude for Waltham, Massachusetts. Any idea of how to begin a code that would perform such an operation? Again, I have a data.frame with the zipcodes linked to the the latitudes and longitudes, on the one hand, and another data.frame with only zipcodes (and some holes). I need to produce the corresponding latitude/longitudes in the latter data.frame. Nicola ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see 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.
