Add scores to a plot

Add scores to a plot

layer_scores(
  object,
  mapping = NULL,
  which = "PC1",
  key = "param",
  value = "value",
  scores_geom = list(ggplot2::geom_path(), ggplot2::geom_point()),
  sequential_facets = TRUE
)

plot_layer_scores(
  object,
  mapping,
  which = "PC1",
  key = "param",
  value = "value",
  ...
)

Arguments

object

A nested_prcomp or similar object

mapping

A mapping created with aes

which

Which principal components to plot

key

The column name to use for the principal component names

value

The column name to use for the principal component score values

scores_geom

One or more geometries to which scores should be applied.

sequential_facets

TRUE will result in the panel containing the dendrogram added to the right of the plot.

...

Passed to layer_scores()

Value

A list() that can be addeed to a ggplot2::ggplot()

Examples

library(ggplot2)
library(dplyr, warn.conflicts = FALSE)

alta_pca <- nested_data(
  alta_lake_geochem,
  qualifiers = c(age, depth, zone),
  key = param,
  value = value,
  trans = scale
) %>%
  nested_prcomp()

ggplot() +
  layer_scores(alta_pca, aes(value, depth), which = "PC1") +
  scale_y_reverse()


plot_layer_scores(alta_pca, aes(y = depth), which = c("PC1", "PC2")) +
  scale_y_reverse()