例: 乱数生成のシード

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  <math resultRef="84" xml:lang="ja">
    <define xml:lang="ja" xmlns="http://schemas.mathsoft.com/math50">
      <function xml:lang="ja">
        <id labels="VARIABLE" xml:space="preserve" xml:lang="ja">SameNormal</id>
        <boundVars xml:lang="ja">
          <id labels="VARIABLE" xml:space="preserve" xml:lang="ja">p</id>
          <id labels="VARIABLE" xml:space="preserve" xml:lang="ja">μ</id>
          <id labels="VARIABLE" xml:space="preserve" xml:lang="ja">σ</id>
        </boundVars>
      </function>
      <program xml:lang="ja">
        <for xml:lang="ja">
          <id labels="VARIABLE" xml:space="preserve" xml:lang="ja">i</id>
          <range xml:lang="ja">
            <real xml:lang="ja">0</real>
            <real xml:lang="ja">2</real>
          </range>
          <program xml:lang="ja">
            <apply xml:lang="ja">
              <id labels="FUNCTION" xml:space="preserve" xml:lang="ja">シード値</id>
              <real xml:lang="ja">1</real>
            </apply>
            <localDefine xml:lang="ja">
              <id labels="VARIABLE" xml:space="preserve" xml:lang="ja">nums</id>
              <apply xml:lang="ja">
                <id labels="FUNCTION" xml:space="preserve" xml:lang="ja" label-is-contextual="true">rnorm</id>
                <sequence xml:lang="ja">
                  <id labels="VARIABLE" xml:space="preserve" xml:lang="ja" label-is-contextual="true">p</id>
                  <id labels="VARIABLE" xml:space="preserve" xml:lang="ja">μ</id>
                  <id labels="VARIABLE" xml:space="preserve" xml:lang="ja">σ</id>
                </sequence>
              </apply>
            </localDefine>
            <localDefine xml:lang="ja">
              <apply xml:lang="ja">
                <matcol xml:lang="ja" />
                <id labels="VARIABLE" xml:space="preserve" xml:lang="ja">M</id>
                <id labels="VARIABLE" xml:space="preserve" xml:lang="ja">i</id>
              </apply>
              <id labels="VARIABLE" xml:space="preserve" xml:lang="ja" label-is-contextual="true">nums</id>
            </localDefine>
          </program>
        </for>
        <id labels="VARIABLE" xml:space="preserve" xml:lang="ja" label-is-contextual="true">M</id>
      </program>
    </define>
    <resultFormat xml:lang="ja">
      <matrix size="12,12" offset="0,0" show-indices="false" expand-nested-arrays="false" xml:lang="ja" />
    </resultFormat>
  </math>
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• シードが 1 に固定されているので、毎回同じ組み合わせの乱数が生成されます。

• SameNormal は反復のたびに 1 つずつの 3 つの同じ列を持つ行列を返します。

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    <define xml:lang="ja" xmlns="http://schemas.mathsoft.com/math50">
      <apply xml:lang="ja">
        <indexer xml:lang="ja" />
        <id labels="VARIABLE" xml:space="preserve" xml:lang="ja">S1</id>
        <id labels="*" xml:space="preserve" xml:lang="ja">q</id>
      </apply>
      <apply xml:lang="ja">
        <indexer xml:lang="ja" />
        <parens xml:lang="ja">
          <apply xml:lang="ja">
            <matcol xml:lang="ja" />
            <apply xml:lang="ja">
              <id labels="VARIABLE" xml:space="preserve" xml:lang="ja">SameNormal</id>
              <sequence xml:lang="ja">
                <id labels="VARIABLE" xml:space="preserve" xml:lang="ja">p</id>
                <id labels="VARIABLE" xml:space="preserve" xml:lang="ja">μ</id>
                <id labels="VARIABLE" xml:space="preserve" xml:lang="ja">σ</id>
              </sequence>
            </apply>
            <real xml:lang="ja">1</real>
          </apply>
        </parens>
        <id xml:space="preserve" xml:lang="ja">q</id>
      </apply>
    </define>
    <resultFormat xml:lang="ja">
      <matrix size="12,12" offset="0,0" show-indices="false" expand-nested-arrays="false" xml:lang="ja" />
    </resultFormat>
  </math>
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                <id xml:space="preserve" xml:lang="ja">same</id>
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                <id xml:space="preserve" xml:lang="ja" xmlns="http://schemas.mathsoft.com/math50">same</id>
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    <define xml:lang="ja" xmlns="http://schemas.mathsoft.com/math50">
      <function xml:lang="ja">
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        <boundVars xml:lang="ja">
          <id labels="VARIABLE" xml:space="preserve" xml:lang="ja">p</id>
          <id labels="VARIABLE" xml:space="preserve" xml:lang="ja">μ</id>
          <id labels="VARIABLE" xml:space="preserve" xml:lang="ja">σ</id>
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      <program xml:lang="ja">
        <for xml:lang="ja">
          <id labels="VARIABLE" xml:space="preserve" xml:lang="ja">i</id>
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            <real xml:lang="ja">2</real>
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          <program xml:lang="ja">
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                <id labels="VARIABLE" xml:space="preserve" xml:lang="ja" label-is-contextual="true">i</id>
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              <id labels="VARIABLE" xml:space="preserve" xml:lang="ja">nums</id>
              <apply xml:lang="ja">
                <id labels="FUNCTION" xml:space="preserve" xml:lang="ja" label-is-contextual="true">rnorm</id>
                <sequence xml:lang="ja">
                  <id labels="VARIABLE" xml:space="preserve" xml:lang="ja" label-is-contextual="true">p</id>
                  <id labels="VARIABLE" xml:space="preserve" xml:lang="ja">μ</id>
                  <id labels="VARIABLE" xml:space="preserve" xml:lang="ja">σ</id>
                </sequence>
              </apply>
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            <localDefine xml:lang="ja">
              <apply xml:lang="ja">
                <matcol xml:lang="ja" />
                <id labels="VARIABLE" xml:space="preserve" xml:lang="ja">M</id>
                <id labels="VARIABLE" xml:space="preserve" xml:lang="ja">i</id>
              </apply>
              <id labels="VARIABLE" xml:space="preserve" xml:lang="ja" label-is-contextual="true">nums</id>
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        <id labels="VARIABLE" xml:space="preserve" xml:lang="ja" label-is-contextual="true">M</id>
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• シード値は反復計算のたびに変わるので、毎回異なる組み合わせの乱数が生成されます。

• どちらのプログラムも iteration = 0 において seed = 0、column =0 で始まるため、どちらも同じデータセットを含む行列を返します。

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