Helpers for defining typed metric entries in output_schema
methods for plugin models.
Usage
schema_scalar()
schema_vector(n)
Arguments
- n
Positive integer length for vector-valued metrics.
Value
An object of class rmvpa_metric_spec.
Details
schema_scalar() declares a single metric column.
schema_vector(n) declares n metric columns expanded as
metric.1, metric.2, ..., metric.n.
These constructors are optional. Legacy string specs
("scalar", "vector[N]") remain supported.
Examples
schema_scalar()
#> $type
#> [1] "scalar"
#>
#> $size
#> [1] 1
#>
#> attr(,"class")
#> [1] "rmvpa_metric_spec"
schema_vector(3)
#> $type
#> [1] "vector"
#>
#> $size
#> [1] 3
#>
#> attr(,"class")
#> [1] "rmvpa_metric_spec"