From the course: Introduction to jamovi

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Box plots

Box plots

- [Instructor] The more you work with data, the more you learn that outliers can be a really serious problem. They can throw off your analyses and your conclusions dramatically. And so you want to pay special attention to the presence of outliers in your data. And probably the easiest way to do this is not with a histogram or with a density plot, but with a box plot. So in this example which uses the iris data and starts up where we left off with the density plots, I'm going to do box plots and show how they relate to the density plots and the extra insight we can get from them in terms of identifying outliers. Now to do this I'm just going to click on my existing density plot analysis. And then when that opens up I'm going to come down here to Plots and I'm going to click Box Plot. Now you notice this is in a separate column. And what this means is it's going to produce a separate chart so the density plots aren't going to go away. This will be in addition, but I'll then remove the…

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