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  1. J

    How can I control the format of the PCA analysis output in R?

    Of course, the output is different for two different datasets. But to have some visual consistency, I want that the ellipse takes approximately the same area on the output plot.
  2. J

    how to determine whether the point is outside/within the ellipse in PCA

    Thank you for your comment. It's a little bit different. The red coloured point is my sample and blue coloured - its peers. I've generated report with this PCA plot showing that my red point is within the ellipse, while based on mahalanobis distance it can be outside the ellipse.
  3. J

    how to determine whether the point is outside/within the ellipse in PCA

    Dear all, Happy New Year. Wish you a very successful year! I am creating PCA plots in R in an automated way and need a script to define whether the sample (red dot on the figure) is outside/within the circle. Does anyone have a good solution for it? So far I've been using mahalanobis distance...
  4. J

    How can I control the format of the PCA analysis output in R?

    Thank you for your response. When I am reanalyzing the same data, I do get the same response. So there is no problem there. But if analyze different data, I get a PCA plot of a different format. Please, see the pictures. What i want is that the ellipse on both plots is located in the center and...