Convert Measure Objects to Data Frames for Plotting

These methods convert measure objects to data frames suitable for use with ggplot2.

Usage

# S3 method for class 'measure_tbl'
fortify(model, data = NULL, ...)

# S3 method for class 'measure_list'
fortify(model, data = NULL, ...)

Arguments

model

A measure_tbl or measure_list object.

data

Ignored. Present for compatibility with generic.

...

Additional arguments (currently unused).

Value

A tibble with columns location and value (for measure_tbl) or location, value, and sample (for measure_list).

Examples

if (FALSE) { # \dontrun{
library(ggplot2)

# Single spectrum
spec <- new_measure_tbl(location = 1:100, value = rnorm(100))
ggplot(fortify(spec), aes(location, value)) + geom_line()

# Multiple spectra (from recipe output)
rec <- recipe(water ~ ., data = meats_long) |>
  step_measure_input_long(transmittance, location = vars(channel)) |>
  prep()
baked <- bake(rec, new_data = NULL)
ggplot(fortify(baked$.measures), aes(location, value, group = sample)) +
  geom_line(alpha = 0.5)
} # }