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Plot PCA with arrows

Source: R/plot_pca_by_group.R
plot_pca_arrows.Rd

Plot PCA with arrows indicating trajectory over time

Usage

plot_pca_arrows(se_obj, circle = TRUE, arrow = TRUE, fontsize = 8, assay = 1)

Arguments

se_obj

A SummarizedExperiment object

circle

Logical, whether to draw circles (ellipses) around samples of each time point (default is TRUE)

arrow

Logical, whether to draw arrows indicating the trajectory over time (default is TRUE)

fontsize

Font size for the PCA plot (default is 8)

assay

Assay index to use, where 1 is the original data and 2 is normalised to time 0 (if available) (default is 1)

Value

A PCA plot showing the distribution of samples, coloured by Time, with arrows indicating the trajectory over time.

Examples

data("example")
plot_pca_arrows(example_obj[, example_obj$Group == "IFNbeta"])
#> Warning: Removed 1 row containing missing values or values outside the scale range
#> (`geom_segment()`).