> For the complete documentation index, see [llms.txt](https://water-strategy.gitbook.io/waterstrategy/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://water-strategy.gitbook.io/waterstrategy/zhong-guo-ren/jian-mo-ji-chu-zhi-shi/parameters/combining-multiple-parameters/aggregated-parameter.md).

# 聚合参数

## 一般描述

索引参数的集合。这个类的行为就像一个集合。可以在其中添加或删除参数。它的值是使用聚合函数（例如 sum）聚合的子参数的值。[ API 参考资料](https://pywr.github.io/pywr-docs/master/api/generated/pywr.parameters.AggregatedParameter.html#pywr.parameters.AggregatedParameter)

## 属性

<table><thead><tr><th width="154">姓名</th><th width="395">描述</th><th>必填项</th></tr></thead><tbody><tr><td>类型</td><td>汇总</td><td>是的</td></tr><tr><td>参数</td><td>要聚合的参数</td><td>可选</td></tr><tr><td>agg_func</td><td>聚合函数。必须是 {“sum”、“min”、“max”、“mean”、“product”} 或接受值列表的可调用函数之一</td><td>可选</td></tr></tbody></table>

## 示例

\`\`json { “类型”：“聚合参数”， “agg\_func”：“产品”， “参数”：\[ “基准需求”， “控制曲线需求因子” ] }

```

在这种情况下，聚合参数是将两个参数相乘

* [基准需求](https://water-strategy.gitbook.io/water-strategy/modelling-fundamentals/parameters/constant#example)
* 控制曲线需求因子

此示例显示基准需求乘以根据储层控制曲线减少需求的系数。你可以点击每个参数来查看它们是如何定义的。 &#x20;
```


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