Trim a model to the elements its data uses

Marks sets, parameters and mappings with no data, then the variables and equations whose domains are empty as a consequence, so that renderers skip them. The model keeps every element; untrim_model() clears the marks and get_trim_summary() reports what was trimmed.

Usage

trim_model(model, strategy = "unused", verbose = TRUE, .progress = "auto")

Arguments

model

A mm_model with data attached.

strategy

"unused" (the default) trims only elements that cannot take part in any equation; "aggressive" also trims elements referenced only by trimmed equations.

verbose

Print progress messages.

.progress

"auto" shows a progress bar (via the progressr package) for large models only; TRUE/FALSE force it on or off.

Value

The model with trim marks set; is_trimmed() is TRUE for it.

See also

untrim_model(), get_trim_summary(), fold_model()

Examples

# \donttest{
trimmed <- trim_model(example_models$energyRt$multimod, verbose = FALSE)
is_trimmed(trimmed)
#> [1] TRUE
# }