Statistical methods and results of analysis of independent abiotic variables, table of mean abiotic values used in principal components analysis, and MANOVA results for compaction data from experiment
Distributed Principal Component Analysis (PCA) has been studied to deal with the case when data are stored across multiple machines and communication cost or privacy concerns prohibit the computation
The mean absolute value of the PC score represents the distance from the group centroid to the PC axis, while the sign denotes direction from the axis.