# Slot: sigma 


_Observation-noise scale of the likelihood. May deliberately differ from the data's generative noise — it sets how tightly the likelihood constrains the (possibly degenerate) parameter ridge._



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URI: [tvbo:slot/sigma](https://w3id.org/tvbo/slot/sigma)
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## Applicable Classes

| Name | Description | Modifies Slot |
| --- | --- | --- |
| [Likelihood](../classes/Likelihood.qmd) | Observation model for Bayesian inference: p(data | sim(theta)) |  no  |






## Properties

### Type and Range

| Property | Value |
| --- | --- |
| Range | [xsd:float](http://www.w3.org/2001/XMLSchema#float) |
| Domain Of | [Likelihood](../classes/Likelihood.qmd) |

### Cardinality and Requirements

| Property | Value |
| --- | --- |
### Slot Characteristics

| Property | Value |
| --- | --- |
| Owner | [Likelihood](../classes/Likelihood.qmd) |












## Identifier and Mapping Information





### Schema Source


* from schema: https://w3id.org/tvbo




## Mappings

| Mapping Type | Mapped Value |
| ---  | ---  |
| self | tvbo:sigma |
| native | tvbo:sigma |




## LinkML Source

<details>
```yaml
name: sigma
description: Observation-noise scale of the likelihood. May deliberately differ from
  the data's generative noise — it sets how tightly the likelihood constrains the
  (possibly degenerate) parameter ridge.
from_schema: https://w3id.org/tvbo
rank: 1000
owner: Likelihood
domain_of:
- Likelihood
range: float

```
</details></div>