I’m new to PLS, and I’m getting a bit confused if the values in called myplsobj$loadings$X in the pls mixomics package are either what are called the X “weights” (w vector) or the X “loadings” (p vector) as by Wold et al 2001 PLSR paper. Based on my understanding of the formulas in Le Cao et al 2008 it appears that this is the u vector, which that paper calls loadings but Wold et al call weights.
In addition, are myplsobj$loadings.star[] the PLSR weights transformed to the independent between components (what Wold calls w*)?
Thanks! I’m just getting confused by the different notations used across papers.