Thank you! Dan From: Sarah Goslee [mailto:sarah.gos...@gmail.com] Sent: Thursday, August 02, 2012 5:51 PM To: Lopez, Dan Cc: R help (r-help@r-project.org) Subject: Re: [R] Plotting Where People Live on a U.S. Map
Hi Dan, For question 1, yes you'll need geographic coordinates. I thinknit's possible to get a shapefile of zip codes, but maybe someone else will know the details. For #2, you probably want maps instead of map, and you need to load a package before you can use it: install.packages("maps") library(maps) and then your code. Sarah On Thursday, August 2, 2012, Lopez, Dan wrote: Hi, QUESTION TOPIC #1 I have some data I want to plot on a map. But what I have are home addresses: street, City, State, complete postal code--i.e 95377-1234. Is there a way to plot this data or do I need latitudinal and longitude coordinates? If so how do I convert them? Is there a package that will do the conversion in R? QUESTION TOPIC #2 I was trying to experiment with this code that I found at the site below but got a message that indicated that the "map" function is not found. So I tried installing the maps package but got the below message. Is there an alternative way of doing this (please refer to URL below)? # The message I got: > install.packages("map") Warning message: package 'map' is not available (for R version 2.15.0) # The code I tried to run: states <- data.frame(map("state", plot=FALSE)[c("x","y")]) colnames(states) <- c("Lon","Lat") ggplot(states, aes(x=Lon, y=Lat)) + geom_path() + geom_point(alpha=0.6,size=0.3,data=subway) # Where I got the code from and also an image of what I am attempting to do (please enter this in your URL) http://www.google.com/imgres?um=1&hl=en&biw=1790&bih=845&tbm=isch&tbnid=4rMjXYA_w1qDiM:&imgrefurl=http://www.informaniac.net/&docid=SJqcsPghztrj0M&imgurl=http://lh5.ggpht.com/_yBbodrC25kU/Ta6Ifqr0ZLI/AAAAAAABRCg/98rIF-kMMns/map%25255B7%25255D.png&w=512&h=319&ei=mgsbUIzqJuKbiAL5v4DQDg&zoom=1&iact=hc&vpx=176&vpy=477&dur=5741&hovh=177&hovw=285&tx=110&ty=113&sig=117496213270544868088&page=2&tbnh=125&tbnw=200&start=32&ndsp=40&ved=1t:429,r:0,s:32,i:175 Dan [[alternative HTML version deleted]] ______________________________________________ R-help@r-project.org<javascript:;> 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. -- Sarah Goslee http://www.stringpage.com http://www.sarahgoslee.com http://www.functionaldiversity.org [[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.