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  • Image to Table JMP extension imports single or batch images as data tables. Useful to extract curves from pictures or convert image data to curve data to use in analyses like Functional Data Explorer. Download and install the extension.

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kjwx109
kjwx109
Level II

scores plot for PCA

Created: May 15, 2022 09:50 AM  |  Last Modified: Jun 8, 2023 5:49 PM (1941 views)

The scores plot has a circle inside the scatterplot.  Does this represent a confidence interval or is it more for decorative purposes?  If the former, can the confidence interval be changed?

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Thierry_S
Super User Thierry_S
Super User

Re: scores plot for PCA

May 15, 2022 02:50 PM (1931 views)  |  Posted in reply to message from kjwx109 05-15-2022

Hi,

I believe that you are referring to the Loading Plot, where the circle represents the maximum possible contribution of each variable (i.e., Distance from zero = 1). The length of the vectors (arrows) represents the relative contribution of each variable to the principal components displayed.

Best,

TS

Thierry R. Sornasse

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