Plot PCA Score by Batch

Draw a PCA score plot for samples and color points by batch. PCA is computed on log2-transformed intensities after removing variables with missing values.

Usage

plot_batch_pca(exp, batch_col = "batch")

Arguments

exp

A glyexp::experiment() object.

batch_col

Column name in sample_info, or a factor/vector with length equal to the number of samples.

Value

A ggplot object of PCA scores.

Examples

exp <- glyexp::toy_experiment
exp$sample_info$batch <- rep(c("A", "B"), each = 3)
plot_batch_pca(exp, batch_col = "batch")