Excel bashing can be fun but also can be dangerous because you are makeing your life harder than necessary. Statisticians meanwhile know that the numerics of statistical computation can be quite bad, therefore one should not use them. But using our (we = Thomas Baier + Erich Neuwirth) RExcel addin either with the R(D)COM server or with rcom (package on CRAN) allows you to use all the nice features of Excel (yes, there are quite a few) and use R as as the computational engine within Excel. The formula =RApply("var",A1:A1000) in an Excel cell for example will use R to compute the variance of the data in column A in Excel. If you change any of the values in the range A1:A1000 will automatically recompute the variance.
There is one feature in Excel which is extremely convenient, Pivot tables. Anybody doing any work as statistical consultant really ought to know about Pivot tables, and I am still surprised how many statisticians do not know about it. Neither Gnumeric nor OpenOffice Calc offer comparably convenient ways working with multidimensional tables. I think the answer to the question "Excel or R" of course is "Excel and R". -- Erich Neuwirth, University of Vienna Faculty of Computer Science Computer Supported Didactics Working Group Visit our SunSITE at http://sunsite.univie.ac.at Phone: +43-1-4277-39464 Fax: +43-1-4277-39459 ______________________________________________ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.