# Routines for Descriptive and Model-Based APC Analysis

## Documentation for package ‘APCtools’ version 1.0.8

- DESCRIPTION file.
- User guides, package vignettes and other documentation.
- Package NEWS.

## Help Pages

calc_density | Internal helper to calculate the (group-specific) density of a variable
capitalize_firstLetter | Internal function to capitalize the first letter of a character
compute_marginalAPCeffects | Internal helper to compute marginal APC effects and their confidence intervals
compute_xCoordinate | Internal helper to tilt the x-axis for the hexamap plot
compute_yCoordinate | Internal helper to tilt the x-axis for the hexamap plot
create_APCsummary | Create a summary table for multiple estimated GAM models
create_groupVariable | Internal helper to create a group variable as base for a density matrix
create_highlightDiagonalData | Internal helper to create a dataset for ggplot2 to highlight diagonals
create_modelSummary | Create model summary tables for multiple estimated GAM models
create_oneAPCsummaryTable | Internal helper to create a summary table for one estimated GAM model
drug_deaths | Drug deaths of white men in the United States
ensure_segmentsInPlotRange | Internal helper for gg_addReferenceLines to keep diagonal lines in the plot range
extract_summary_linearEffects | Internal helper to extract summary of linear effects in a gam model
get_plotGAMobject | Extract returned values of plot.gam() while suppressing creation of the plot
gg_addReferenceLines | Internal helper to add reference lines in an APC heatmap
gg_highlightDiagonals | Internal helper to add the diagonal highlighting to a ggplot
plot_1Dsmooth | Plot 1D smooth effects for 'gam' models
plot_APCheatmap | Heatmap of an APC surface
plot_APChexamap | Hexamap of an APC surface
plot_density | Plot the density of one metric or categorical variable
plot_densityMatrix | Create a matrix of density plots
plot_density_categorical | Internal helper to plot a categorical density
plot_density_metric | Internal helper to plot a metric density
plot_jointMarginalAPCeffects | Joint plot to compare the marginal APC effects of multiple models
plot_linearEffects | Plot linear effects of a gam in an effect plot
plot_marginalAPCeffects | Plot of marginal APC effects based on an estimated GAM model
plot_partialAPCeffects | Partial APC plots based on an estimated GAM model
plot_variable | Distribution plot of one variable against one APC dimension
travel | Data from the German Reiseanalyse survey