Hello After performing a pca of morphometric variables and a scatterplot of the first 2 principal components, using the package latticeExtra, I tried to draw the ellipses representing one sigma from the centroid for each sample, but the function panel.ellipse draws the ellipses around 95% of the sample. Does anyone know a function to draw a centroid based ellipse? Cheers, Lumila -- Lumila Paula Men?ndez Licenciada en Antropolog?a Divisi?n Antropolog?a-Museo de La Plata. Universidad Nacional de La Plata. http://www.evomorfologica.com.ar/ http://unlp.academia.edu/LumilaPm
Hello After performing a pca of morphometric variables and a scatterplot of the first 2 principal components, using the package latticeExtra, I tried to draw the ellipses representing one sigma from the centroid for each sample, but the function panel.ellipse draws the ellipses around 95% of the sample. Does anyone know a function to draw a centroid based ellipse? Cheers, Lumila -- Lumila Paula Men?ndez Licenciada en Antropolog?a Divisi?n Antropolog?a-Museo de La Plata. Universidad Nacional de La Plata. http://www.evomorfologica.com.ar/ http://unlp.academia.edu/LumilaPm