# CheckDataResult


Structured diagnostic data underlying [check()](check.md#whittaker.check) plots.


Usage

``` python
CheckDataResult(
    deviance_residuals,
    pearson_residuals,
    fitted_values,
    response,
    qq_theoretical,
    qq_observed,
)
```


Provides the same four diagnostic datasets that [check()](check.md#whittaker.check) renders as Altair charts, but as raw arrays for custom plotting with matplotlib or other libraries.


## Attributes


`deviance_residuals: NDArray`  
Deviance residuals, shape `(n,)`.

`pearson_residuals: NDArray`  
Pearson residuals, shape `(n,)`.

`fitted_values: NDArray`  
Fitted values on the response scale, shape `(n,)`.

`response: NDArray`  
Observed response values, shape `(n,)`.

`qq_theoretical: NDArray`  
Theoretical normal quantiles for the QQ plot, shape `(n,)`.

`qq_observed: NDArray`  
Sorted deviance residuals for the QQ plot, shape `(n,)`.


## Attributes

| Name | Description |
|----|----|
| [n_obs](#n_obs) | Number of observations. |

------------------------------------------------------------------------


### n_obs


Number of observations.


`n_obs: int`