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Just a note

Notice that, for these graphs, because many of the values are identical (tied) you have to calculate the rank of each value sequentially - rather than using the mean rank of each value.

On the first graph we have added a yellow line plot, interpolating between the mean rank of each value. Where results are heavily tied, as they are here, the mean rank provides a very different view of their distribution.

The following code produces much the same sort of result using R.


  • R can also plot a 'dotplot' of the frequency against value.