…when people assume that the Excel output is enough. I think of all the research papers in economics where the authors must have spent dozens of hours trying all sorts of different model specifications, dozens of hours writing and rewriting the prose of the article, . . . and 15 minutes making the graphs." Andrew Gelman, quoted at http://andrewgelman.com/2009/04/22/more_on_data_vi/.
You can find an earlier version of this page on my blog.