biolab / biolab/orange2

PCA Biplot

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Python
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Description

No problems with plotting scree plot for PCA.
![2](https://cloud.githubusercontent.com/assets/6380557/8685240/57588d0c-2a4b-11e5-9540-5d6b416dbe88.PNG)

However the biplot for the top two components is not showing.
![3](https://cloud.githubusercontent.com/assets/6380557/8685275/88b4a250-2a4b-11e5-8ecf-c2933aba8d53.PNG)

The documentation for PCA biplot says "components (list) – List of two components to plot." I have tried [0,1] to no avail either. Am I misunderstanding something?

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