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name: detect-metrics description: Detect and list all metric functions in the yardstick package. Use when a user asks to find, list, or identify all metrics in the package.

Detect metrics

Detection commands

Find all metric definitions (recommended):

Copygrep -E ".* <- new_.*_metric\(" R/*.R

Find available metric constructors:

Copygrep -E "^new_.*_metric <- function" R/*.R

Check exported metrics:

Copygrep "^export(" NAMESPACE | sed 's/export(//' | sed 's/)//'

Metric structure

Each metric has:

1. Generic function calling UseMethod()
2. Constructor wrap: metric_name <- new_*_metric(metric_name, direction = "minimize"|"maximize"|"zero")
3. Data frame method using *_metric_summarizer()
4. Vector implementation: metric_name_vec()

Key files

• R/aaa-new.R - Metric constructor definitions
• R/fair-aaa.R - Groupwise metric constructor
• R/template.R - Metric summarizer functions