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networktools (version 1.2.1)

PCAnet: PCAnet

Description

Convenience function for converting a qgraph object to a layout determined by principal components analysis

Usage

PCAnet(qgraph_net, cormat, varTxt = F, repulse = F, repulsion = 1,
  principalArgs = list(), ...)

Arguments

qgraph_net

an object of type qgraph

cormat

the correlation matrix of the relevant data. If this argument is missing, the function will assume that the adjacency matrix from qgraph_net is a correlation matrix

varTxt

logical. Print the variance accounted for by the PCA in the lower left corner of the plot

repulse

logical. Add a small repulsion force with wordcloud package to avoid node overlap?

repulsion

scalar for the repulsion force (if repulse=T). Larger values add more repulsion

principalArgs

additional arguments in list format passed to psych::principal

...

additional arguments passed to qgraph

Details

A network plotted with PCA can be interpreted based on coordinate placement of each node. A node in the top right corner scored high on both the first and second principal components

References

Jones, P. J., Mair, P., & McNally, R. J. (2017). Scaling networks for two-dimensional visualization: a tutorial. Retrieved from osf.io/eugsz