Identify stability inflection point — ica_optimal

This function can be used after having run ica_evaluate_comp(). It will calculate the inflection point, based on the first derivative of a loess function fitted ncomp ~ combined_score with the combined score being a product of the median stability, orthogonality and proportion of convergence and add these info to the object. Should the loess function raise a warning (e.g., singularity), the class will be returned as is and manual determination of optimal ncomp is warrented. Additionally, you have the option to plot the loess function for additional control over the span parameter (defaults to TRUE).

Usage

ica_optimal_ncomp(object, span = 0.2, show_plot = TRUE, .verbose = TRUE)

Arguments

object: The class, see BulkCoExp(). You need to apply ica_evaluate_comp() before running this function.
span: Float. A value between 0.1 and 1.0 for the loess function defining the span. Defaults to 0.2.
show_plot: Boolean. Shall a plot be shown of the loess function fitted. Defaults to TRUE.
.verbose: Boolean. Controls the verbosity of the function.

Value

BulkCoExp with optimal ncomp based on the inflection point method.