Plot CV Density

Compute coefficient of variation (CV) for each variable and plot its density. When by is provided, CVs are computed within each group and densities are shown with different fills.

Usage

plot_cv_dent(exp, by = NULL)

Arguments

exp

A glyexp::GlycomicSE(), glyexp::GlycoproteomicSE(), or SummarizedExperiment::SummarizedExperiment() object.

by

Grouping variable for samples. Can be a column name in sample_info or a vector/factor with length equal to the number of samples. When provided, CVs are computed within each group and densities are shown with different fills.

Value

A ggplot object of CV density.

Examples

plot_cv_dent(glyexp::real_experiment)

library(SummarizedExperiment)

exp <- glyexp::real_experiment
group <- rep(c("A", "B"), length.out = ncol(exp))
colData(exp)$group <- group
plot_cv_dent(exp, by = "group")