R as integrated engine R as integrated engine Architecture, Civil - PowerPoint PPT Presentation

UseR 2006! UseR 2006! University of applied sciences of western Switzerland, Fribourg Construction department: R as integrated engine R as integrated engine Architecture, Civil Engineering Information and Telecommunications in blended learning in blended learning department: Computer science, telecommunications environment environment Industrial Technologies department: Western CH Mechanics, Electricity, Chemistry HES-SO Pascale Voirin, Omar Abou Khaled, Tadeusz Senn University of Applied Sciences of western Switzerland, Fribourg Bd. Pérolles 80, CP 32, 1705 Fribourg Switzerland Contact: pascale.voirin@hefr.ch phone: +41 26 429 67 22 june '06 1 june '06 2 UseR 2006! UseR 2006! Test for hybrid learning environment Teaching environment during spring ‘06 Students : The idea is to keep the profit of working with R, without the burden for students to learn it, at least at the beginning, in this introductory course in in chemistry statistics. Not familiar with statistics The test is developed on a small part of the course: hypothesis testing; and With no real will to learn R, a software running with « commands » is used in the class-room in a blended learning situation Technical objectives : Working with a laptop (required for each one) � integration of an R server to run simulations for examples and exercises � implement the different course elements, in agreement with the SCORM standard. Course : Pedagogical objectives : In a traditional classroom � re-think the content for the teacher � evaluate the ease-of-use by our students One semester course, twice a week � evaluate the added-value of such an approach Using R for probabilities/quantiles calculations june '06 3 june '06 4

UseR 2006! UseR 2006! Work done up to now Work done up to now Choice between two examples to illustrate the approach all along. The approach to perform an hypothesis test, explained step- by-step june '06 5 june '06 6 UseR 2006! UseR 2006! Work done up to now Work done up to now An R calculations Simulation of null and graphics hypothesis population, window owing to embedded available on simulations, calculated line at any with R. time june '06 7 june '06 8

UseR 2006! UseR 2006! Work done up to now R implementation We use the Rpad Library from Tom Short. R commands displayable for each interactive Perl (mod_perl or CGI) Rpad extension demonstration. Apache web server R server (php, perl, Moodle, ...) Web Browser june '06 9 june '06 10 UseR 2006! The plus and minus − − − + + + First version available Running only with firefox After some distrust, the students had a Some improvements and extensions are rather positive reaction. They appreciate needed to be able to go through again on their Very time-consuming to implement and to own at home. use with students As a teacher, it was quite interesting to think of and produce all the contents. We can discuss further during the forum june '06 11