I have a large data structure that looks like: > strsplit(st,",")[14395] [1] "KGEG" [2] "SA => KGEG" [3] "72785" [4] "47.62139" [5] "-117.52778" [6] "723" [7] "WA" [8] "US" [9] "2" [10] "SPOKANE SPOKANE INTERNATIONAL AIRPORT" [11] "1"
I'd like to be able to retrieve, for example, the latitude as.numeric(strsplit(st,",")[[14395]][4]) and longitude as.numeric(strsplit(st,",")[[14395]][5]) for the entry in the structure where strsplit(st,",")[[14395]][5])=="KGEG" by specifying various station IDs. That is, if I had a simpler structure I could formulate a logical index which would have something along the lines of as.numeric(st[st[1]=="KSEA"][4]) and it would return 47.62139. Somewhere I'm getting all bollixed up with the indexing and keep getting sytax errors. As you can see, the list is quite long (20K+) and I don't wish to have to look up each coordinate by hand. TIA Clint -- Clint Bowman INTERNET: [EMAIL PROTECTED] Air Quality Modeler INTERNET: [EMAIL PROTECTED] Department of Ecology VOICE: (360) 407-6815 PO Box 47600 FAX: (360) 407-7534 Olympia, WA 98504-7600 ______________________________________________ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
