範例：亂數種子產生

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範例：亂數種子產生

使用 Seed 函數控制產生新亂數集的流程。

1. 在簡短的程式中使用函數 Seed 與 rnorm，透過重設種子值，為三個疊代產生相同的常態分佈亂數集。

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• 因為種子設為 1，所以每次都會產生相同的亂數集。

• SameNormal 會傳回有相同三欄的矩陣，每欄各代表一個疊代。

2. 使用函數 hist 與 max，繪製含有 n_bins 個柱狀之第二個亂數集的柱狀圖。新增水平標記以顯示傳回集合的最大值。

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3. 修改程式以透過增量每個疊代的種子值，產生三個不同的常態分佈亂數集。

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• 既然種子值會隨著每次疊代而變更，因此每個亂數集都是唯一的。

• 由於兩個程式的疊代 0 都是以種子 1 起始，所以這兩個傳回矩陣的欄 0 會包含相同的集合。

4. 從傳回的矩陣萃取第二個數據集：

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5. 使用函數 hist 產生含有 n_bins 個柱狀之亂數集的柱狀圖，然後計算其最大值。

6. 繪製柱狀圖，並使用水平標記顯示其最大值：

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