pca_biplot: pca_biplot

In schyen/somefxns: Generic Tools to Help with Analysis

Description

uses ggfortify and ggplot2's autoplot to make biplot. uses prcomp to calculate pca

Usage

pca_biplot(data, metadata, colour = NULL, label = TRUE,
  loadings = TRUE, loadings.label = TRUE,
  loadings.label.colour = "darkred")

Arguments

data	dataframe. Independant variable in rows, dependant variable in columns. Variable names in row and column names
metadata	dataframe. metadata for the independant variables rownames must match rownames in data
colour	string. column name in metadata to colour code score
label	logic. default TRUE. label score points
loadings	logic. default TRUE. When set, show loadings on biplot
loadings.label	logic. default TRUE. When set, label loadings
loadings.label.colour	string. default 'darkred'

Value

list of: p_biplot ggplot biplot pcx prcomp object. pcx_summary dataframe. summary of pca

schyen/somefxns documentation built on Aug. 6, 2019, 2:26 p.m.