---
id: "M:cAlgo.API.Functions.Maximum(cAlgo.API.DataSeries,System.Int32)"
kind: "method"
type: "T:cAlgo.API.Functions"
url: "https://help.ctrader.com/ctrader-algo/references/Collections/DataSeries/Functions/Maximum/"
---

> Documentation index for agents: https://help.ctrader.com/ctrader-algo/llms.txt · machine index: https://help.ctrader.com/ctrader-algo/api.json

# Functions.Maximum

Member of [Functions](https://help.ctrader.com/ctrader-algo/references/Collections/DataSeries/Functions/index.md).

## Maximum(DataSeries series, int period)

Finds the maximum value in a data series for a given period.

Environments: Desktop supported · CLI supported · Cloud supported.

C#:

```csharp
public static double Maximum(DataSeries series, int period)
```

Python:

```python
Functions.Maximum(series: DataSeries, period: int) -> float
```

### Parameters

- `series` (`DataSeries`, Python `DataSeries`): Input data series
- `period` (`int`, Python `int`): Input period

### Returns

`double` — The maximum value in the data series in this period

### Examples

C#:

```csharp
var highestHigh = Bars.HighPrices.Maximum(20);
Print("Highest high of the last 20 bars: {0}", highestHigh);
```

Python:

```python
highestHigh = Functions.Maximum(api.Bars.HighPrices, 20)
api.Print(f"Highest high of the last 20 bars: {highestHigh}")
```