Plots the standard deviations (or approximate singular values if running PCAFast)
of the principle components for easy identification of an elbow in the graph.
This elbow often corresponds well with the significant dims and is much faster to run than
Jackstraw
Usage
ElbowPlot(object, ndims = 20, reduction = "pca")
Value
A ggplot object
Arguments
object
Seurat object
ndims
Number of dimensions to plot standard deviation for
reduction
Reduction technique to plot standard deviation for