Detect metrics

Detection commands

Find all metric definitions (recommended):

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

Find available metric constructors:

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

Check exported metrics:

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

Metric structure

Each metric has:

1. Generic function calling UseMethod()
2. Constructor wrap: metricname <- new*metric(metricname, direction = "minimize"|"maximize"|"zero")
3. Data frame method using *metricsummarizer()
4. Vector implementation: metricnamevec()

Key files

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