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confusion matrix

This tag is associated with 2 posts

Freehand Diagrams with Adobe Ideas

Freehand diagrams have two big virtues: they are quick and they are unconstrained. I used to use a notebook (see What are degrees of freedom) but recently I got an ipad and then I found Adobe Ideas. It’s completely free and has just the right level of complexity for getting ideas down fast. It takes … Continue reading

A confused tangle

A confusion matrix is a confusing thing. There’s a surprising number of useful statistics that can be built out of just four numbers and the links between them are not always obvious. The terminology doesn’t help (is a true negative an observation that is truly in the class but classified negative or one that is … Continue reading

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