00_slides.ipynb

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   "source": [
    " # Introduction to Jupyter Notebooks"
   ]
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   "source": [
    "Thor Wikfeldt  \n",
    "kthw@kth.se  \n",
    "PDC Center for HPC, Stockholm"
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   "source": [
    "```bash\n",
    "$ git clone https://github.com/coderefinery/jupyter.git\n",
    "$ ls \n",
    "jupyter\n",
    "$ cd jupyter\n",
    "$ ls\n",
    "00_slides.ipynb           03_higherperf.ipynb       data\n",
    "$ jupyter-notebook\n",
    "```"
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   "source": [
    "May need this if using Pouta Blueprints service\n",
    "```bash\n",
    "export GIT_COMMITTER_NAME=kthw                                                                 \n",
    "export GIT_COMMITTER_EMAIL=kthw@kth.se \n",
    "```"
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   "source": [
    "## History of Jupyter\n",
    "  - In 2014, Fernando Pérez announced a spin-off project from IPython called Project Jupyter. IPython will continue to exist as a Python shell and a kernel for Jupyter, while the notebook and other language-agnostic parts of IPython will move under the Jupyter name. Jupyter added support for Julia, R, Haskell and Ruby [`https://en.wikipedia.org/wiki/IPython`].\n",
    " "
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   "source": [
    "Why \"Jupyter\"?\n",
    "  - Julia + Python + R\t      "
   ]
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   "source": [
    " - Galileo's publication in a pamphlet in 1610 in Sidereus Nuncius about observations of Jupiter's moons is formulated as a notebook, with illustrations, text, calculations, titles, datapoints, images, reasoning... One of the first notebooks!\n",
    "<div style=\"float: right\">\n",
    "<img align=\"right\" src=\"img/galileo1610_1.jpg\" alt=\"Drawing\" style=\"float: center; width: 300px;\"/> \n",
    "</div>\n",
    "\n",
    "  "
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   "source": [
    "## Today\n",
    "- Around 3M Jupyter users\n",
    "- Over 500k Jupyter Notebooks on GitHub"
   ]
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   "source": [
    "![jupusage backgrounds](img/jupyter_survey_2016_backgrounds.png)\n",
    "\n",
    "<small> https://github.com/jupyter/design/blob/master/surveys/2015-notebook-ux/analysis/report_dashboard.ipynb </small>"
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   "source": [
    "![jupusage backgrounds](img/jupyter_survey_2016_words.png)\n",
    "\n",
    "<small> https://github.com/jupyter/design/blob/master/surveys/2015-notebook-ux/analysis/report_dashboard.ipynb </small>"
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   "source": [
    "## Why use Jupyter?\n",
    "- complex analysis involving interactive experimentation\n",
    "- quickly testing out ideas\n",
    "- keeping track of interactive sessions, like a lab notebook\n",
    "- writing technical documentation involving formated text, code, equations, figures, widgets...\t\n",
    "- sharing and collaborating with colleagues\n",
    "- supplementary information with published articles\n",
    "- presentations"
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   "source": [
    "## Navigating Jupyter notebooks\n",
    " - Notebook Dashboard\n",
    "   * `Files` tab shows files in currenct directory\n",
    "   * `Running` tab shows kernels running on your computer\n",
    "   * `Clusters` tab lets you launch kernels for parallel computing\n",
    " - Fully-fledged terminal (you can run emacs and vi)\n",
    " - Text editor for source code in many different languages  \n",
    " "
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   "source": [
    "## Notebook user interface\n",
    "![A new notebook](img/nbui-2.png)"
   ]
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   "source": [
    " ## Cells\n",
    "\n",
    " - There are two main types of cells: **Markdown cells** and **code cells**\n",
    " - **Markdown cells** contain rich text. Apart from classic formatting options (bold, italics, headings), one can add links, images, HTML elements, LaTeX, *etc*.\n",
    " - **Code cells** contain code to be executed by the kernel. The programming language corresponds to the kernel's language. \n"
   ]
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  {
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   "metadata": {
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   },
   "source": [
    "## Markdown cells\n",
    " ![A Markdown cell](img/markdown-both_50.png)"
   ]
  },
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   "source": [
    "## Code cells\n",
    "\n",
    "![Structure of a code cell](img/nbui-3_50.png)\n"
   ]
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   "source": [
    "## Converting to other formats\n",
    "- `jupyter nbconvert mynotebook.ipynb` \n",
    "- `jupyter nbconvert --to html --template [basic/full] mynotebook.ipynb` \n",
    "- `jupyter nbconvert --to latex --template [base/report/article] mynotebook.ipynb`\n",
    "- `jupyter nbconvert mynotebook.ipynb --to pdf` \n",
    "- `jupyter nbconvert myslides.ipynb --to slides --post serve`"
   ]
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   "source": [
    "## Resources\n",
    " - https://github.com/ipython/ipython/wiki/A-gallery-of-interesting-IPython-Notebooks\n",
    " - http://nbviewer.jupyter.org/\n",
    " - http://ipython-books.github.io/minibook/\n",
    " - http://ipython-books.github.io/cookbook/\n",
    " - https://www.dataquest.io/blog/jupyter-notebook-tips-tricks-shortcuts/\n",
    " "
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   "source": [
    "## Future directions: JupyterLab\n",
    "\n",
    "![jupyterlab](img/jlab-screenshot-nb-con-term-2_30.png)"
   ]
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    "- natural evolution of the Jupyter Notebook user interface\n",
    "- an IDE: *Interactive* Development Environment\n",
    "- flexible user interface for assembling the building blocks of interactive computing\n",
    "- adaptable to multiple workflows. Switch between Notebook/narrative focus and script/console focus"
   ]
  },
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   "source": [
    "## Overview of this lesson\n",
    "\n",
    " - Data exploration with `pandas`, `matplotlib` and `seaborn`\n",
    " - The power of Jupyter notebooks: *magics*\n",
    " - Need for speed: mixing in Fortran and C\n",
    " - Running in parallel with `ipyparallel`"
   ]
  }
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