Ridge density plots for time series — ridge

Generates ggridges density ridge plots for all series combined and per-series per-calendar-month variants. Supports optional zero-value exclusion via ignore_zeros and zero_threshold.

Usage

ridge_plots(ts, palette = "Set3", ignore_zeros = FALSE, zero_threshold = 0.01)

Arguments

ts: An xts object containing the time series data.
palette: Colour palette for the ridge plot (default "Set3").
ignore_zeros: Logical; if TRUE, values below zero_threshold are excluded.
zero_threshold: Numeric threshold below which values are treated as zero (default 0.01).

Value

A list with two elements: plot_all (full ridge plot for all series) and plot_monthly (named list of per-month ridge plots per series).

Examples

# Synthetic xts
set.seed(123)
dates <- seq(as.POSIXct("2000-01-01"), as.POSIXct("2000-12-31"), by = "day")
vals <- matrix(rnorm(length(dates) * 4, 10, 5), nrow = length(dates), ncol = 4)
colnames(vals) <- c("S1", "S2", "S3", "S4")
ts <- xts::xts(vals, order.by = dates)

ridges <- ridge_plots(ts, ignore_zeros = TRUE)
ridges$plot_all
#> Warning: The dot-dot notation (`..x..`) was deprecated in ggplot2 3.4.0.
#> ℹ Please use `after_stat(x)` instead.
#> ℹ The deprecated feature was likely used in the anyFit package.
#>   Please report the issue at <https://github.com/Gapouliasis/anyFit/issues>.
#> Picking joint bandwidth of 1.3