2.3.install_packages_required.ipynb

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    "    <tr>\n",
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    "            <img src='./images/libraries_required.png'width=200>\n",
    "        </td>\n",
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    "\n",
    "<h1 style='text-align: center;'>Installing Required Python Packages</h1>\n",
    "<h3 style='text-align: center;'>Shouke Wei, Ph.D. Professor</h3>\n",
    "<h4 style='text-align: center;'>Email: shouke.wei@gmail.com</h4>"
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    "## Objective\n",
    "- how to install the required packages \n",
    " - Numpy\n",
    " - Jupyter notebook\n",
    " - Pandas\n",
    " - Matplotlib\n",
    " - Seaborn\n",
    " - Statsmodels\n",
    " - Scikit-learn"
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   "source": [
    "## 1. check if the packages installed\n",
    "### (1) show all the installed packages"
   ]
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    "pip list"
   ]
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    "conda list"
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   "source": [
    "### (2) check if a package was installed"
   ]
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   "source": [
    "pip show jupyter notebook"
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   "source": [
    "### (3) using `import` packages"
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   "source": [
    "import numpy\n",
    "import pandas\n",
    "import matplotlib\n",
    "import seaborn\n",
    "import statsmodels\n",
    "import sklearn"
   ]
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   "source": [
    "## 2. Install packages\n",
    "\n",
    "First, ensure that you have the latest pip; older versions may have trouble with some dependencies:"
   ]
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   "source": [
    "pip install --upgrade pip"
   ]
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   "source": [
    "### (1) Using `pip`"
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    "pip install jupyter notebook numpy pandas matplotlib seaborn statsmodels scikit-learn"
   ]
  },
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    "pip install -U jupyter notebook numpy pandas matplotlib seaborn statsmodels scikit-learn"
   ]
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   "source": [
    "### (2) Using `conda`"
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    "conda install jupyter notebook numpy pandas matplotlib seaborn statsmodels scikit-learn\n",
    "\n",
    "conda install -c conda-forge jupyter notebook numpy pandas matplotlib seaborn statsmodels scikit-learn"
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    "### (3) Using requirements text file\n",
    "- `pip install -r /path/to/requirements.txt`\n",
    "- `python -m pip install -r /path/to/requirements.txt`"
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   "source": [
    "pip install -r ./requirements.txt"
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    "pip install -U -r ./requirements.txt"
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   "source": [
    "Here, \n",
    "- r is short form of --requirement and it asks the pip to install from the given requirements file.\n",
    "- U: update if it had already installed"
   ]
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    "#### Requirements with Version Specifiers \n",
    "```\n",
    "numpy == 1.22.0             # Version Matching. Must be version 1.22.0  \n",
    "numpy >= 1.20.0             # Minimum version 1.20.0   \n",
    "numpy != 1.19.0             # Version Exclusion. Anything except version 1.19.0  \n",
    "numpy ~= 1.1                # Compatible release. Same as >= 1.1, == 1.* \n",
    "```"
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   "source": [
    "### (4) More help"
   ]
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   "source": [
    "pip install --help0"
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