Plot Fitted Model

Plots observed and predicted gas production values for an individual bottle.

Usage

plot_fit(fit, head = NULL)

Arguments

fit

A fitted model object.

head

Optional Head identifier. If omitted and only one bottle is present, that bottle is plotted automatically.

Value

A ggplot2 object.

Details

Observed measurements are displayed alongside the fitted model curve, allowing visual assessment of model performance.

This visualization is useful for:

• Evaluating model fit

• Identifying systematic deviations

• Inspecting individual fermentation profiles

• Comparing observed and predicted values

See also

plot_all_fits, plot_residuals, fit_groot

Examples

files <- example_data()

raw_data <- read_ankom(
  files$ankom
)

metadata <- read_metadata(
  files$metadata
)

gp <- process_ankom(
  raw_data,
  metadata,
  headspace_ml = 210,
  temperature_c = 39
)

fit <- fit_groot(
  gp
)
#> Warning: Large negative pressure values detected. Minimum PSI = -1.274 . Please inspect the affected bottles.
#> rumenGP data validation passed.
#> Observations: 1752
#> Heads: 24
#> Treatments: 5

# Plot a specific bottle
plot_fit(
  fit,
  head = 1
)