I like the 3d visualization!
What are the colors and shapes in the 2d plot? EDIT: I now understand that the colors are the clusters and the shapes the Currier classification as A (circle), B (triangle), C/undecided (square). If so, it's clear that PCA1 is basically enough to separate A from B. I don't remember if we were ever able to identify an intuitive meaning for PCA2.
At the bottom of this comment, a similar result (same V-shape) is shown for selected bigrams, rather than the entire set of unique words.
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It's interesting that bigrams show Pharma (yellow) as a partially separated cluster.
What are the colors and shapes in the 2d plot? EDIT: I now understand that the colors are the clusters and the shapes the Currier classification as A (circle), B (triangle), C/undecided (square). If so, it's clear that PCA1 is basically enough to separate A from B. I don't remember if we were ever able to identify an intuitive meaning for PCA2.
At the bottom of this comment, a similar result (same V-shape) is shown for selected bigrams, rather than the entire set of unique words.
You are not allowed to view links. Register or Login to view.
Colors detailed here: You are not allowed to view links. Register or Login to view.
It's interesting that bigrams show Pharma (yellow) as a partially separated cluster.