similar to: Model Validation - with a twist

This is my first time working with REST and XML. My goal is to access Google''s geocoding service using HTTP. Here''s the code I have so far: require ''open-uri'' require ''rexml/document'' include REXML url=''http://maps.google.com/maps/geo?'' address = ''q=1600 Amphitheatre Parkway Mountin View,CA'' address1 =

Dear, I am trying to visualise a time-progressing line (it's supposed to represent spread patterns) using brew package and Google Earth. The idea is to have a function which takes start and end point geographic coordinates, as well as number of intervals to chop the path up, and returns the collection of points segmenting this line. Unfortunately my calculations fail for large distances,

Dear, I would like to generate kml file with lines (<LineString>) of different style (definitely color, but width would also be nice to see). However with kmlLine from maptools package I am able only to output the single first Lines object (first row of SpatialLinesDataFrame) I guess the option would be to have single Lines object (instead of list of them), but then also the style

Hi, I have a data file in a KML format which is Google Earth's format for geographic data. I need to import it into a csv file . How can I do that. KML format is just like XML format .example below Which R module with deal with an OR problem (like transportation problem using geo coded data as in the example below) Regards, Ajay www.decisionstats.com - <?xml version="1.0"

I am wondering if there is a function which will do a join between 2 data.frames by minimum distance, as it is done in ArcGIS for example. For people who are not familiar with ArcGIS here it is an explanation: Suppose you have a data.frame with x, y, coordinates called track, and a second data frame with different x, y coordinates and some other attributes called classif. The track data.frame has

All - I have a large data frame that looks like ID p1 p2 p3...p20 Lat1 Lat2 Lat3...Lat20 Long1 Long2 Long3...Long20 1 0 0 1 0 NA NA 29.xx NA NA NA -89.xx NA 2 1 0 0 1 27.xx NA NA 29.00 -88.00 NA NA -89.xx 3 0 0 0 0 NA

Background: OS: Linux Mandrake 10.1 release: R 2.0.0 editor: GNU Emacs 21.3.2 front-end: ESS 5.2.3 --------------------------------- Colleagues Is there a function to calculate distances between adjacent latitude/ longitude pairs in a matrix? It is basically a spatial diff() function that I have in mind. Data: long1, lat1 long2, lat2 long3, lat3 looking for: diff(data$long, data$lat)

Hello, I''m farily new to RoR and am having a problem trying to retrieve data from my database. Here is the code from my controller: def index zip = params["zip"] @zip1 = Zipcode.find(:first, :conditions => ["zip = ?", zip]) lat = @zip1.latitude.to_f long = @zip1.longitude.to_f radius = 50 @bookstores = Bookstore.find_by_sql ["SELECT * FROM

Deemed colleagues I would appreciate your help with a sentence to calculate the linear distance between 2 geographical points (coordinates in UTM). In advance thnks for your attention, -- Ricardo Bandin Llanos rbandin@udec.cl Estudiante - Magíster Cs. m. Pesquerías Universidad de Concepción, Región del Bio-Bio, Chile Celular: (0056-41) 97949957 [[alternative HTML version deleted]]

Anybody know where I can get the Pinheiro/Bates book? I can't find a bookstore w/ stock and the publisher says they don't know when they'll have it again. Thanks. -Frank

I currently have a database with a table called bookstores. Within that table are columns such as bookstore name, city, state, and zip code. What I''d like to do is display the City and then every store name for that city underneath it. i.e. City - Store 1 - Store 15 Another City - Store 2 - Store 5 etc. I''ve seen act_as_tree but I don''t know if

I am hoping to find a inventory management program suitable for something like a bookstore or other 1-5 person smb. The software would need to be able to accept inputs from wireless handheld scanning devices for entry into the system. It must also work with their windows based PoS computer. Any suggestions would be highly appreciated. William -- My "Foundation" verse: Isa 54:17

Hi the list, I am writing a package in S4 and I do not manage to understand a bug. The "R CMD check" and the "R CMD build" both work. Here is links to the package (not on CRAN yet for the raison that I explain bellow): http://christophe.genolini.free.fr/aTelecharger/kml_0.5.zip http://christophe.genolini.free.fr/aTelecharger/kml_0.5.tar.gz Then I install the package and I

Hi the list, One of my package has a memory issue that I do not manage to understand. The Memtest notes is here: <http://www.stats.ox.ac.uk/pub/bdr/memtests/valgrind/kml-Ex.Rout> Here is the message that I get from Memtest --- 8< ---------------- ~ Fast KmL ~ ==27283== Invalid read of size 4 ==27283== at 0x10C5DF28: kml1 (kml.c:183) ... ==27283== by 0x10C5DE4F: kml1 (kml.c:151)

Ruby Cookbook is out. I browsed the book today at the bookstore. It looks very good with a section on Rails. There is no review on Amazon yet. Did anyone get a chance to review this book?

Dear, I built the generalized method of moments model to estimate the sales rank in the bookstore using plm package in R. The equation is: data1.gmm <- pgmm(dynformula(lnsales_rank ~ ln_price + avg_ham_rate + avg_spam_rate + num_of_ham+ num_of_spam + ship_code2 +ship_code3 +ship_code4+ ship_code5+ ship_code6 + ship_ code7, lag = list(0, 0, 0, 0,0,0,0,0,0,0,0,0), log =FALSE), data=data,

Hi All, Thanks to everyone who has written wanting more information on when "Samba-3 by Example" by John Terpstra will be available. The good news is that it is available right now through your local bookstore or online sites like Amazon.com. There are already a couple of very positive comments posted to Amazon. These indicate that if you want to get Samba-3 up and running, you'll

Hi, I was trying to use the geocoding stuff in Mapstraction and found a bug with IE6. I couldn''t find a way of submitting it on Trac, so here it is. Change line 110 of mapstraction-geocode.js from: place = response.Placemark[0]; to: var place = response.Placemark[0]; Otherwise IE6 doesn''t declare the variable properly and things break in obscure ways. Cheers, Tom

Hi, I am new to R and am a very basic user. I'm importing SHP files, adding plots of random locations within my polygon (these files have GPS data), and then want to save these plots (intact with added points) as KML files to look at in GoogleEarth (or possibly as SHP files which I can then convert into KML). This is as far as I've gotten (code below) and am lost as to next steps, Any

I am trying to understand how the SOM algorithm works using library(class) SOM function. I have a 1000*10 matrix and I want to be able to summarize the different types of 10-element vectors. In my real world case it is likely that most of the 1000 values are of one kind the rest of other (this is an oversimplification). Say for example: InputA<-matrix(cos(1:10),nrow=900,ncol=10,byrow=TRUE)