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spring-haru committed Aug 16, 2024
1 parent 2671c56 commit c3b11b6
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19 changes: 12 additions & 7 deletions 10_Data_Fluctuation.ipynb
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{
"cell_type": "markdown",
"metadata": {
"heading_collapsed": true
"heading_collapsed": true,
"jp-MarkdownHeadingCollapsed": true
},
"source": [
"## トレンドと変動"
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{
"cell_type": "markdown",
"metadata": {
"hidden": true
"hidden": true,
"jp-MarkdownHeadingCollapsed": true
},
"source": [
"### 説明"
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"cell_type": "markdown",
"metadata": {
"heading_collapsed": true,
"hidden": true
"hidden": true,
"jp-MarkdownHeadingCollapsed": true
},
"source": [
"### 構成要素のトレンドからの乖離率"
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},
{
"cell_type": "markdown",
"metadata": {
"jp-MarkdownHeadingCollapsed": true
},
"metadata": {},
"source": [
"#### GDPと構成要素との相関係数"
]
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"hidden": true
},
"source": [
"これらの結果を説明するために,効用最大化に基づく消費者理論があり,利潤最大化に基づく企業行動に関するモデルが使われている。"
"これらの結果を説明するために,効用最大化に基づく消費者理論があり,利潤最大化に基づく企業行動に関するモデルが使われている。\n",
"\n",
"```{note}\n",
"変動の大きさを比べるために、変動係数を使うこともできるが、分母に使う平均が`0`に近い値となるため、意味がない比較となってします。\n",
"```"
]
}
],
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20 changes: 8 additions & 12 deletions 13_random_TFP.ipynb
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{
"cell_type": "markdown",
"metadata": {
"hidden": true,
"jp-MarkdownHeadingCollapsed": true
"hidden": true
},
"source": [
"### 説明"
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{
"cell_type": "markdown",
"metadata": {
"hidden": true,
"jp-MarkdownHeadingCollapsed": true
"hidden": true
},
"source": [
"### 自己共分散(自己相関)"
]
},
{
"cell_type": "markdown",
"metadata": {
"jp-MarkdownHeadingCollapsed": true
},
"metadata": {},
"source": [
"#### 復習"
]
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"また,次も成立する。\n",
"\n",
"$$\n",
"\\begin{alignat}\n",
"X_i\\text{と}X_i\\text{の共分散}&=\\sigma{XX}=\\sigma_X^2=X_i\\text{の分散}\\\\\n",
"Y_i\\text{と}Y_i\\text{の共分散}&=\\sigma{YY}=\\sigma_Y^2=Y_i\\text{の分散}\n",
"\\end{alignat}\n",
"\\begin{aligned}\n",
"X_i\\text{と}X_i\\text{の共分散}&=\\sigma_{XX}=\\sigma_X^2=X_i\\text{の分散}\\\\\n",
"Y_i\\text{と}Y_i\\text{の共分散}&=\\sigma_{YY}=\\sigma_Y^2=Y_i\\text{の分散}\n",
"\\end{aligned}\n",
"$$\n",
"\n",
"共分散は2変数の相関度を示す指標だが,同じ変数同士の場合は分散となる。"
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"outputs": [],
"source": [
"cycle_lst1 = [s+'_cycle' for s in var_lst1]\n",
"df.plot(y=cycle_lst, subplots=True, figsize=(8,10))\n",
"df.plot(y=cycle_lst1, subplots=True, figsize=(8,10))\n",
"pass"
]
},
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