*Hi, first of all-thank you for your extensive answer.*
> Hi, > > >> Not at all - R has a built-in webserver (it's used for the help pages), >> so > if you install R, you're done with that part. Rook >gives you a wrapper > for > that. > > What do you mean by wrapper? > >It defines an API that is easier to use that writing the httpd function (which is called by the build-in HTTP server) yourself. *OK. Thanks for the clarification.* > What do you mean by scale/scaling? (not an IT engineer). Mainly this would > be used for one-user-at-the-time. So if by scaling you mean multiple user > at > the same time, I'm not sure what you really mean ;) - using R from HTML simply means sending R code from the client (browser) to the server and have the server run that code. That's easy - you simply issue a request, for example http://myserver/R?eval=print(1:10) * I don't know if it should work, but he link with example doesn't work on my machine.... )* > For example (this is using FastRWeb API but it should illustrate the > idea): *Ok, here's where i lose it.* / foo.R: run <- function(city, ...) { if (missing(city)) return("Sorry, you have to specify a city!") db <- dbConnect("myDatabase:...") q <- dbSendQuery(db, "SELECT age FROM user WHERE city=?", city) age <- fetch(q, n = -1)[[1]] dbClearResult(q) dbDisconnect(db) p <- WebPlot(400, 400) hist(age) p }/ *Ok, creating a foo.R is easy. But where do i put this file? Do i have to start the server before or open R ? * I/n HTML you can either use a form/ /<form action=R/foo> City: <input type=text name=city> <input type=submit> </form>/ *How does HTML know where to "look" for the file foo.R. This is what i can 't see written anywhere in manuals? * / Either way, you get the idea - you could pass a SQL query instead or use eval() in the argument if you want (as I said, that's too insecure for my taste). But in all cases you are really running everything server-side. / *Ok, this is even better. * /That said, there is potentially another solution -- I don't know anything about CSHTML, but if it can really hook into C# from HTML then you make be able to use the C# part to connect to R - there is a C# Rserve client (assuming that CSHTML is server-side interpretation). This is theoretical, I don't use Windows so I don't know if that is meant to work./ *Ok, i'll look at it. * Thank again, matevz > -- View this message in context: http://r.789695.n4.nabble.com/Passing-R-code-from-webpage-tp4658800p4658988.html Sent from the R devel mailing list archive at Nabble.com. ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel