# Layer L6  --  Statistical tests

[Back to encyclopedia](../index.md) | [Browse layers](../browse_by_layer.md) | [Browse all axes](../browse_by_axis.md)

- Layer ID: `l6`
- Category: `consumption`
- Sub-layers: 7
- Axes: 33
- Options across axes: 16

## Sub-layers

| Sub-layer | Name | Gate | Axes |
|---|---|---|---|
| `L6_A_equal_predictive` | Equal predictive | always | [equal_predictive_test](axes/equal_predictive_test.md), [loss_function](axes/loss_function.md), [model_pair_strategy](axes/model_pair_strategy.md), [hln_correction](axes/hln_correction.md) |
| `L6_B_nested` | Nested | always | [nested_test](axes/nested_test.md), [nested_pair_strategy](axes/nested_pair_strategy.md), [cw_adjustment](axes/cw_adjustment.md), [enc_test_one_sided](axes/enc_test_one_sided.md) |
| `L6_C_cpa` | CPA | always | [cpa_test](axes/cpa_test.md), [cpa_window_type](axes/cpa_window_type.md), [cpa_conditioning_info](axes/cpa_conditioning_info.md), [cpa_critical_value_method](axes/cpa_critical_value_method.md) |
| `L6_D_multiple_model` | Multiple model | always | [multiple_model_test](axes/multiple_model_test.md), [mcs_alpha](axes/mcs_alpha.md), [mmt_loss_function](axes/mmt_loss_function.md), [bootstrap_method](axes/bootstrap_method.md), [bootstrap_n_replications](axes/bootstrap_n_replications.md), [bootstrap_block_length](axes/bootstrap_block_length.md), [mcs_t_statistic](axes/mcs_t_statistic.md), [spa_studentization](axes/spa_studentization.md), [stepm_alpha](axes/stepm_alpha.md) |
| `L6_E_density_interval` | Density / interval | always | [density_test](axes/density_test.md), [interval_test](axes/interval_test.md), [coverage_levels](axes/coverage_levels.md), [pit_n_bins](axes/pit_n_bins.md), [pit_test_horizon_dependence](axes/pit_test_horizon_dependence.md) |
| `L6_F_direction` | Direction | always | [direction_test](axes/direction_test.md), [direction_threshold](axes/direction_threshold.md), [direction_alpha](axes/direction_alpha.md) |
| `L6_G_residual` | Residual | always | [residual_test](axes/residual_test.md), [residual_lag_count](axes/residual_lag_count.md), [residual_test_scope](axes/residual_test_scope.md), [residual_alpha](axes/residual_alpha.md) |

```{toctree}
:hidden:
:maxdepth: 1

axes/equal_predictive_test
axes/loss_function
axes/model_pair_strategy
axes/hln_correction
axes/nested_test
axes/nested_pair_strategy
axes/cw_adjustment
axes/enc_test_one_sided
axes/cpa_test
axes/cpa_window_type
axes/cpa_conditioning_info
axes/cpa_critical_value_method
axes/multiple_model_test
axes/mcs_alpha
axes/mmt_loss_function
axes/bootstrap_method
axes/bootstrap_n_replications
axes/bootstrap_block_length
axes/mcs_t_statistic
axes/spa_studentization
axes/stepm_alpha
axes/density_test
axes/interval_test
axes/coverage_levels
axes/pit_n_bins
axes/pit_test_horizon_dependence
axes/direction_test
axes/direction_threshold
axes/direction_alpha
axes/residual_test
axes/residual_lag_count
axes/residual_test_scope
axes/residual_alpha
```