Adding the average

  • Comments posted to this topic are about the item Adding the average

  • Short question: I admit, that I do not work with R, but why should anyone else really wants to do this "graphical" plotting in R, while there are much more fancy, better looking diagram-tools outside?

    Of course, R does support this stuff, since it is a very old language and 25 years ago this plots could have been state of the art, but why should I today know this syntax, even if I had / want to work with R?

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  • A classic example of a multiple choice Q. easily answered by sheer psychology. One need only make a simple mental plot of how options relate to each other to see what is the central (=correct) option, from which the others are derived. Of course, it is not a foolproof method. But it is surprisingly useful for making an "educated" guess when drawing a "blank" - not the least for the classic certification exam format. Chances can, of course, be enhanced if partial knowledge allow for immediate exclusion of one or more options.

  • Thanks for this question Steve, besides how to add a line to a plot in R, I looked up whether the difference between Mean and Average and how to calculate Median and Midrange. 😉

  • t.franz - Wednesday, September 20, 2017 2:42 AM

    Short question: I admit, that I do not work with R, but why should anyone else really wants to do this "graphical" plotting in R, while there are much more fancy, better looking diagram-tools outside?

    Of course, R does support this stuff, since it is a very old language and 25 years ago this plots could have been state of the art, but why should I today know this syntax, even if I had / want to work with R?

    Many of the "R" people I've met use this to get quick looks at data and start examinations for how to add things to more complex plots, or more visually appealing items. This lets them quickly play with ideas, which often take a backseat to formatting or managing data in something like SSRS, PowerBI, etc.

  • Interesting question, thanks Steve

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