Sorry if this doesn’t make sense – I’m a new PhD student and looking into PCA – I think I understand the idea of it, I’ve worked with PC1 and PC2, I’ve plotted to visualise, and retrieved eigenvalues. I understand the silhouette scores: I am using the highest score as K (number of clusters) for my K-means.

But today my post doc supervisor said something like “PC1 is a number and I retrieved a silhouette score…” – I’m not sure what this means?

Thanks for any help!