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@@ -0,0 +1,424 @@
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+{
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+ "cells": [
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+ {
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+ "cell_type": "code",
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+ "execution_count": 1,
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+ "metadata": {},
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+ "outputs": [],
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+ "source": [
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+ "import numpy as np\n",
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+ "import pandas as pd\n",
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+ "import matplotlib.pyplot as plt"
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+ ]
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+ },
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+ {
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+ "cell_type": "code",
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+ "execution_count": 2,
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+ "metadata": {},
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+ "outputs": [],
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+ "source": [
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+ "%matplotlib inline\n",
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+ "%config InlineBackend.figure_format='svg'"
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+ ]
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+ },
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+ {
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+ "cell_type": "code",
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+ "execution_count": 3,
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+ "metadata": {},
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+ "outputs": [],
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+ "source": [
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+ "plt.rcParams['font.sans-serif'] = 'FZJKai-Z03S'\n",
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+ "plt.rcParams['axes.unicode_minus'] = False"
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+ ]
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+ },
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+ {
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+ "cell_type": "code",
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+ "execution_count": 61,
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+ "metadata": {},
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+ "outputs": [
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+ {
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+ "data": {
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+ "text/plain": [
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+ "一季度 320\n",
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+ "二季度 180\n",
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+ "三季度 300\n",
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+ "四季度 405\n",
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+ "dtype: int64"
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+ ]
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+ },
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+ "execution_count": 61,
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+ "metadata": {},
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+ "output_type": "execute_result"
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+ }
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+ ],
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+ "source": [
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+ "ser1 = pd.Series(data=[320, 180, 300, 405], index=['一季度', '二季度', '三季度', '四季度'])\n",
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+ "ser1"
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+ ]
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+ },
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+ {
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+ "cell_type": "code",
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+ "execution_count": 62,
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+ "metadata": {},
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+ "outputs": [
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+ {
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+ "data": {
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+ "text/plain": [
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+ "一季度 320\n",
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+ "二季度 180\n",
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+ "三季度 300\n",
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+ "四季度 405\n",
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+ "dtype: int64"
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+ ]
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+ },
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+ "execution_count": 62,
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+ "metadata": {},
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+ "output_type": "execute_result"
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+ }
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+ ],
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+ "source": [
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+ "ser2 = pd.Series({'一季度': 320, '二季度': 180, '三季度': 300, '四季度': 405})\n",
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+ "ser2"
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+ ]
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+ },
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+ {
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+ "cell_type": "code",
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+ "execution_count": 63,
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+ "metadata": {},
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+ "outputs": [
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+ {
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+ "name": "stdout",
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+ "output_type": "stream",
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+ "text": [
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+ "320 300 405\n",
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+ "一季度 350\n",
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+ "二季度 180\n",
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+ "三季度 300\n",
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+ "四季度 360\n",
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+ "dtype: int64\n"
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+ ]
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+ }
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+ ],
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+ "source": [
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+ "print(ser2[0], ser2[2], ser2[-1])\n",
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+ "ser2[0], ser2[-1] = 350, 360 \n",
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+ "print(ser2)"
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+ ]
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+ },
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+ {
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+ "cell_type": "code",
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+ "execution_count": 64,
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+ "metadata": {},
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+ "outputs": [
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+ {
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+ "name": "stdout",
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+ "output_type": "stream",
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+ "text": [
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+ "350 300\n",
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+ "一季度 380\n",
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+ "二季度 180\n",
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+ "三季度 300\n",
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+ "四季度 360\n",
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+ "dtype: int64\n"
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+ ]
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+ }
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+ ],
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+ "source": [
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+ "print(ser2['一季度'], ser2['三季度'])\n",
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+ "ser2['一季度'] = 380\n",
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+ "print(ser2)"
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+ ]
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+ },
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+ {
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+ "cell_type": "code",
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+ "execution_count": 65,
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+ "metadata": {},
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+ "outputs": [
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+ {
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+ "name": "stdout",
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+ "output_type": "stream",
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+ "text": [
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+ "二季度 180\n",
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+ "三季度 300\n",
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+ "dtype: int64\n",
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+ "二季度 180\n",
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+ "三季度 300\n",
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+ "四季度 360\n",
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+ "dtype: int64\n",
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+ "一季度 380\n",
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+ "二季度 400\n",
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+ "三季度 500\n",
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+ "四季度 360\n",
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+ "dtype: int64\n"
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+ ]
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+ }
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+ ],
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+ "source": [
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+ "print(ser2[1:3])\n",
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+ "print(ser2['二季度': '四季度'])\n",
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+ "ser2[1:3] = 400, 500\n",
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+ "print(ser2)"
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+ ]
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+ },
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+ {
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+ "cell_type": "code",
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+ "execution_count": 66,
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+ "metadata": {},
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+ "outputs": [
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+ {
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+ "name": "stdout",
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+ "output_type": "stream",
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+ "text": [
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+ "二季度 400\n",
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+ "四季度 360\n",
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+ "dtype: int64\n",
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+ "一季度 380\n",
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+ "二季度 500\n",
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+ "三季度 500\n",
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+ "四季度 520\n",
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+ "dtype: int64\n"
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+ ]
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+ }
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+ ],
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+ "source": [
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+ "print(ser2[['二季度', '四季度']])\n",
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+ "ser2[['二季度', '四季度']] = 500, 520\n",
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+ "print(ser2)"
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+ ]
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+ },
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+ {
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+ "cell_type": "code",
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+ "execution_count": 68,
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+ "metadata": {},
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+ "outputs": [
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+ {
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+ "name": "stdout",
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+ "output_type": "stream",
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+ "text": [
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+ "二季度 500\n",
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+ "三季度 500\n",
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+ "四季度 520\n",
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+ "dtype: int64\n"
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+ ]
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+ }
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+ ],
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+ "source": [
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+ "print(ser2[ser2 >= 500])"
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+ ]
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+ },
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+ {
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+ "cell_type": "code",
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+ "execution_count": 70,
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+ "metadata": {},
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+ "outputs": [
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+ {
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+ "name": "stdout",
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+ "output_type": "stream",
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+ "text": [
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+ "1900\n",
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+ "475.0\n",
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+ "520\n",
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+ "380\n",
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+ "4\n",
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+ "64.03124237432849\n",
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+ "4100.0\n",
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+ "500.0\n"
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+ ]
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+ }
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+ ],
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+ "source": [
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+ "# 求和\n",
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+ "print(ser2.sum())\n",
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+ "# 求均值\n",
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+ "print(ser2.mean())\n",
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+ "# 求最大\n",
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+ "print(ser2.max())\n",
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+ "# 求最小\n",
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+ "print(ser2.min())\n",
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+ "# 计数\n",
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+ "print(ser2.count())\n",
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+ "# 求标准差\n",
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+ "print(ser2.std())\n",
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+ "# 求方差\n",
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+ "print(ser2.var())\n",
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+ "# 求中位数\n",
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+ "print(ser2.median())"
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+ ]
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+ },
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+ {
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+ "cell_type": "code",
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+ "execution_count": 78,
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+ "metadata": {},
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+ "outputs": [
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+ {
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+ "data": {
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+ "text/plain": [
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+ "count 4.000000\n",
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+ "mean 475.000000\n",
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+ "std 64.031242\n",
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+ "min 380.000000\n",
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+ "25% 470.000000\n",
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+ "50% 500.000000\n",
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+ "75% 505.000000\n",
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+ "max 520.000000\n",
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+ "dtype: float64"
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+ ]
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+ },
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+ "execution_count": 78,
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+ "metadata": {},
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+ "output_type": "execute_result"
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+ }
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+ ],
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+ "source": [
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+ "ser2.describe()"
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+ ]
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+ },
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+ {
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+ "cell_type": "code",
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+ "execution_count": 99,
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+ "metadata": {},
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+ "outputs": [
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+ {
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+ "data": {
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+ "text/plain": [
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+ "apple 3\n",
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+ "pitaya 2\n",
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+ "durian 1\n",
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+ "banana 1\n",
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+ "dtype: int64"
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+ ]
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+ },
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+ "execution_count": 99,
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+ "metadata": {},
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+ "output_type": "execute_result"
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+ }
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+ ],
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+ "source": [
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+ "ser3 = pd.Series(data=['apple', 'banana', 'apple', 'pitaya', 'apple', 'pitaya', 'durian'])\n",
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+ "ser3.value_counts()"
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+ ]
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+ },
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+ {
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+ "cell_type": "code",
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+ "execution_count": 80,
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+ "metadata": {},
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+ "outputs": [
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+ {
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+ "data": {
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+ "text/plain": [
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+ "0 10.0\n",
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+ "1 20.0\n",
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+ "3 30.0\n",
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+ "dtype: float64"
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+ ]
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+ },
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+ "execution_count": 80,
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+ "metadata": {},
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+ "output_type": "execute_result"
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+ }
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+ ],
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+ "source": [
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+ "ser4 = pd.Series(data=[10, 20, np.NaN, 30, np.NaN])\n",
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+ "ser4.dropna()"
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+ ]
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+ },
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+ {
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+ "cell_type": "code",
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+ "execution_count": 82,
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+ "metadata": {},
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+ "outputs": [
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+ {
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+ "data": {
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+ "text/plain": [
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+ "0 10.0\n",
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+ "1 20.0\n",
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+ "2 40.0\n",
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+ "3 30.0\n",
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+ "4 40.0\n",
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+ "dtype: float64"
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+ ]
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+ },
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+ "execution_count": 82,
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+ "metadata": {},
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+ "output_type": "execute_result"
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+ }
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+ ],
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+ "source": [
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+ "ser4.fillna(value=40)"
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+ ]
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+ },
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+ {
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+ "cell_type": "code",
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+ "execution_count": 98,
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+ "metadata": {},
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+ "outputs": [
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+ {
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+ "data": {
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+ "text/plain": [
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+ "0 10.0\n",
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+ "1 20.0\n",
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+ "2 20.0\n",
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+ "3 30.0\n",
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+ "4 30.0\n",
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+ "dtype: float64"
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+ ]
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+ },
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+ "execution_count": 98,
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+ "metadata": {},
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+ "output_type": "execute_result"
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+ }
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+ ],
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+ "source": [
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+ "ser4.fillna(method='ffill')"
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+ ]
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+ },
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+ {
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+ "cell_type": "code",
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+ "execution_count": null,
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+ "metadata": {},
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+ "outputs": [],
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+ "source": []
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+ },
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+ {
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+ "cell_type": "code",
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+ "execution_count": null,
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+ "metadata": {},
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+ "outputs": [],
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+ "source": []
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+ }
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+ ],
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+ "metadata": {
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+ "kernelspec": {
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+ "display_name": "Python 3",
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+ "language": "python",
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+ "name": "python3"
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+ },
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+ "language_info": {
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+ "codemirror_mode": {
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+ "name": "ipython",
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+ "version": 3
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+ },
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+ "file_extension": ".py",
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+ "mimetype": "text/x-python",
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+ "name": "python",
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+ "nbconvert_exporter": "python",
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+ "pygments_lexer": "ipython3",
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+ "version": "3.7.7"
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+ },
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+ "toc": {
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+ "base_numbering": 1,
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+ "nav_menu": {},
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+ "number_sections": true,
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+ "sideBar": true,
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+ "skip_h1_title": false,
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+ "title_cell": "Table of Contents",
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+ "title_sidebar": "Contents",
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+ "toc_cell": false,
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+ "toc_position": {},
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+ "toc_section_display": true,
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+ "toc_window_display": false
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+ }
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+ },
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+ "nbformat": 4,
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+ "nbformat_minor": 2
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+}
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