> 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/others/discount-factor-parameter.md).

# 折扣系数参数

## 一般描述

根据折现率和基准年返回当前折扣系数的参数。 [API 参考资料](https://pywr.github.io/pywr-docs/master/api/generated/pywr.parameters.DiscountFactorParameter.html)

## 属性

<table><thead><tr><th width="158">姓名</th><th width="473">描述</th><th>必填项</th></tr></thead><tbody><tr><td>折扣_费率</td><td>使用折现率（以 0-1 表示）计算每年的折扣系数</td><td>是</td></tr><tr><td>基数_年</td><td>折扣基准年（即折扣系数等于 1.0 的年度）</td><td>是的</td></tr></tbody></table>

## 示例

即将推出...

\`\`json {

}

```
```


---

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