> ## Documentation Index
> Fetch the complete documentation index at: https://help.impactu.colav.co/llms.txt
> Use this file to discover all available pages before exploring further.

# Articles by access route

> Distribution of articles by open access route.

Distribution of articles by open access route. Chart type: **Pie**.

## Parameters

**affiliation\_type** `string` *required*

Affiliation type. This indicator returns data for: `institution`, `faculty`, `department`, `group`.

**affiliation\_id** `string` *required*

Affiliation identifier.

**plot** `string` *required*

Must be `articles_by_access_route`.

It also accepts the [product filters](https://help.impactu.colav.co/en/api-reference/affiliation/get-research-products.md). `max`, `page` and `sort` do not apply.

## Availability by affiliation type

| `affiliation_type` | Data |
| - | - |
| `institution` | ✅ |
| `faculty` | ✅ |
| `department` | ✅ |
| `group` | ✅ |

## Response

```json Institution theme={null}
{
  "plot": [
    {
      "name": "Sin información",
      "percentage": 62.54,
      "value": 84651
    },
    {
      "name": "Diamante",
      "percentage": 13.31,
      "value": 18011
    },
    {
      "name": "Cerrado",
      "percentage": 10.31,
      "value": 13958
    },
    {
      "name": "Verde",
      "percentage": 6.4,
      "value": 8667
    }
  ],
  "sum": 135364
}
```

```json Faculty theme={null}
{
  "plot": [
    {
      "name": "Sin información",
      "percentage": 82.71,
      "value": 5442
    },
    {
      "name": "Diamante",
      "percentage": 9.09,
      "value": 598
    },
    {
      "name": "Cerrado",
      "percentage": 4.09,
      "value": 269
    },
    {
      "name": "Verde",
      "percentage": 2.9,
      "value": 191
    }
  ],
  "sum": 6580
}
```

```json Department theme={null}
{
  "plot": [
    {
      "name": "Sin información",
      "percentage": 93.04,
      "value": 708
    },
    {
      "name": "Diamante",
      "percentage": 3.29,
      "value": 25
    },
    {
      "name": "Cerrado",
      "percentage": 1.97,
      "value": 15
    },
    {
      "name": "Verde",
      "percentage": 1.71,
      "value": 13
    }
  ],
  "sum": 761
}
```

```json Group theme={null}
{
  "plot": [
    {
      "name": "Sin información",
      "percentage": 61.88,
      "value": 495
    },
    {
      "name": "Dorado",
      "percentage": 14.12,
      "value": 113
    },
    {
      "name": "Diamante",
      "percentage": 10.38,
      "value": 83
    },
    {
      "name": "Cerrado",
      "percentage": 6.38,
      "value": 51
    }
  ],
  "sum": 800
}
```


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