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Hi All, It took me 30minutes to connect GNU R on Windows XP to a PostgreSQL database running on the same machine and then generate the first graphics. I've taken screenshots of all the steps and documented them here...
Hi All, I guess it is also important to write when you did not have any problems doing something. This morning it took me 30minutes to connect GNU R on Windows XP to a PostgreSQL database running on the same...
Hi All, I wonder if you can help me with an aparently simple task. ?I have been searching examples for this without any luck: #Assume x<-1:10 ?#x ranges from 1 to 10. y<-x*runif(10)+ 1.5...
Hi Bert, Thanks for your reply. Your recommendation seems to minimize the error transformed with log, but not the percent error, that is, the model error divided by the observed value (for each observation). I need to minimize the percent...
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