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Glossary: use 边缘分布 for "marginal distribution" in inventory_dynamics #200

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mmcky merged 1 commit into from
Jul 23, 2026
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Glossary: use 边缘分布 for "marginal distribution" in inventory_dynamics #200

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8 changes: 4 additions & 4 deletions lectures/inventory_dynamics.md
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Expand Up @@ -14,7 +14,7 @@ translation:
headings:
Overview: 概述
Sample paths: 样本路径
Marginal distributions: 边际分布
Marginal distributions: 边缘分布
Exercises: 练习
---

Expand Down Expand Up @@ -191,9 +191,9 @@ for i in range(400):
plt.show()
```

## 边际分布
## 边缘分布

现在让我们来看看某一固定时间点 $T$ 时 $X_T$ 的边际分布 $\psi_T$。
现在让我们来看看某一固定时间点 $T$ 时 $X_T$ 的边缘分布 $\psi_T$。

我们将通过在给定初始条件 $X_0$ 的情况下，生成多个 $X_T$ 的样本来实现。

Expand Down Expand Up @@ -302,7 +302,7 @@ plt.show()

（作为背景知识，有关平稳性的讨论，请参见 {doc}`我们关于AR(1)过程的讲座 <intro:ar1_processes>`——基本概念是相同的。）

特别是，边际分布序列$\{\psi_t\}$正在收敛到一个唯一的极限分布，且该分布不依赖于初始条件。
特别是，边缘分布序列$\{\psi_t\}$正在收敛到一个唯一的极限分布，且该分布不依赖于初始条件。

虽然我们不会在此证明这一点，但我们可以通过模拟来研究这一性质。

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