Hello all, Sorry for this email not directly related to R developement. I just come from a nice demonstration session from Scitegic about their Pipeline Pilot (PP) software, and especially their 'R collection' which brings R calculations into the software (http://www.scitegic.com/documents/RStats_Collection.pdf).
I looked carefully on the way they do it: they pass data from PP to R using text files, they call R.exe using a R script and input - output files, like: R.exe --nosave --no-environ --no-resore-data < script.R > output.txt And in the script, you have: read.table(...) which imports the data just exported from PP in an CVS file by the component. I don't want to discuss here the ugly and extremely inefficient solution they use to call R on their data, but anyway... So far, so good, they respect the GPL license since R is not embedded into PP, and you have to download and install it separately. But they also provide a series of "R component" ready to use like 'R ANOVA', 'R PCA', R Neural Net', etc... which are basically R scripts with replaceable variables (replacement is done by PP before feeding the script to the R engine). For instance, you will have: parameter <- $(PPvariable) in the R script. In the PP component, you have an option to specify the value of 'PPvariable', let's say: PPvariable = 10, and the replacement done in the R script is: parameter <- 10 before to feed this script to R. So, everything appears transparent to the end-user who parameterizes the scripts from within the PP GUI. That is what they call "each component generates an R script on-the-fly"... (sic!) However, I was suprised to learn that the Pipeline Pilot R Collection is not GPL and is not free (in term of money, i.e., you have to pay 3500$/year to use it). I am not sure, but I think they break the GPL license here since they use a commercial license for, basically, a collection of R scripts embedded in their 'PP components'. Anyone with better expertise than me could look at this, please? Best, Philippe Grosjean -- ..............................................<°}))><........ ) ) ) ) ) ( ( ( ( ( Prof. Philippe Grosjean ) ) ) ) ) ( ( ( ( ( Numerical Ecology of Aquatic Systems ) ) ) ) ) Mons-Hainaut University, Belgium ( ( ( ( ( .............................................................. ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel
