> For the complete documentation index, see [llms.txt](https://doc.moost.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://doc.moost.io/platform-manual/rules/rule-language/functions/count.md).

# COUNT

### Description

Counts the number of entries on a *vector, grouped scalar,* or *grouped vector.*

### COUNT(Vector\<any>)

```java
COUNT(vector: Vector<any>): Scalar<Number>
```

Count the entries of the given Vector\<any>.

#### Parameters

<table><thead><tr><th width="172">Parameter</th><th>Description</th></tr></thead><tbody><tr><td>vector</td><td>A vector of type &#x3C;any></td></tr></tbody></table>

#### Returns

Returns how many elements are within the given vector as Scalar\<Number>

***

### COUNT(GroupedScalar\<any, any>)

```java
COUNT(group: GroupedScalar<any, any>): Scalar<Number>
```

Count the entries of the given GroupedScalar\<any, any>.

#### Parameters

<table><thead><tr><th width="172">Parameter</th><th>Description</th></tr></thead><tbody><tr><td>group</td><td>A GroupedScalar of type &#x3C;any, any></td></tr></tbody></table>

#### Returns

Returns how many elements are within the given group as Scalar\<Number>

***

### COUNT(GroupedVector\<any, any>)

```java
COUNT(group: GroupedVector<any, any>): Scalar<Number>
```

Count the entries of the given GroupedVector\<any, any>.

#### Parameters

<table><thead><tr><th width="172">Parameter</th><th>Description</th></tr></thead><tbody><tr><td>group</td><td>A GroupedVector of type &#x3C;any, any></td></tr></tbody></table>

#### Returns

Returns how many elements are within the given group as Scalar\<Number>

***

### Examples

Count the elements within the GridPowerConsumption time series.

```java
COUNT($GridPowerConsumption)
```


---

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