Plot stored private PC directions — plot.dp

Create loading plots from an existing dp_loading() fit. Plotting uses the stored direction matrices and does not re-estimate PCs or spend additional privacy budget.

Draw the combined plot stored in a dp_loading_plot object. The original directions remain available in x$loading.

Summarize the fitted PC directions stored in a dp_loading_plot object.

Display a previously constructed plot or redraw it using new plotting options without re-estimating the PC directions.

Usage

# S3 method for class 'dp_loading'
plot(
  x,
  axes = c(1, 2),
  type = c("vector", "point", "heatmap"),
  heatmap_components = NULL,
  variables = 10,
  plot_control = NULL,
  ...
)

# S3 method for class 'dp_loading_plot'
print(x, ...)

# S3 method for class 'dp_loading_plot'
summary(object, ...)

# S3 method for class 'dp_loading_plot'
plot(x, ...)

Arguments

x: A dp_loading_plot object.
axes: Two distinct PC indices for vector and point plots, displayed on fixed axes from -1.2 to 1.2. Default: c(1, 2).
type: One or more of "vector", "point", and "heatmap". The default shows all three types. With only one stored component, the default shows a heatmap because vector and point plots need two axes.
heatmap_components: PC indices to include in a heatmap; NULL (default) uses axes.
variables: Variables to display. A single positive integer selects the variables with the largest Euclidean norms across the displayed PC coefficients (top 10 by default). Use "all" or NULL for every variable, or provide variable names or a vector of column indices. Selection is performed separately for each version and display.
plot_control: Optional appearance settings from loading_plot_control() or a named list of its options.
...: Options passed to plot.dp_loading(). With no additional options, redraw the stored plot using its original settings.
object: A dp_loading_plot object.

Value

Draws the combined plot and invisibly returns a dp_loading_plot object with loading (the original fit) and plot (individual plots and the combined plot$all). Printing the saved object displays the plot.

Invisibly returns x.

A summary.dp_loading object.

Invisibly returns a dp_loading_plot object.

Details

Vector and point plots use fixed axes from -1.2 to 1.2 and show variable labels. Each heatmap scales colors over its own displayed coefficients, so comparable coefficients can have different colors between versions. An ordinary PCA reference is shown automatically only when it was stored at fitting; it is not a private release.