From dd8875e093df8d21f91a4a533d6c9231d873b5f8 Mon Sep 17 00:00:00 2001 From: darksun Date: Mon, 23 Apr 2018 14:12:03 +0800 Subject: [PATCH] =?UTF-8?q?=E9=80=89=E9=A2=98:=20Getting=20started=20with?= =?UTF-8?q?=20Anaconda=20Python=20for=20data=20science?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- ...d with Anaconda Python for data science.md | 117 ++++++++++++++++++ 1 file changed, 117 insertions(+) create mode 100644 sources/tech/20180418 Getting started with Anaconda Python for data science.md diff --git a/sources/tech/20180418 Getting started with Anaconda Python for data science.md b/sources/tech/20180418 Getting started with Anaconda Python for data science.md new file mode 100644 index 0000000000..43cd89f17c --- /dev/null +++ b/sources/tech/20180418 Getting started with Anaconda Python for data science.md @@ -0,0 +1,117 @@ +Getting started with Anaconda Python for data science +====== + +![](https://opensource.com/sites/default/files/styles/image-full-size/public/lead-images/brain_data.png?itok=RH6NA32X) +Like many others, I've been trying to get involved in the rapidly expanding field of data science. When I took Udemy courses on the [R][1] and [Python][2] programming languages, I downloaded and installed the applications independently. As I was trying to work through the challenges of installing data science packages like [NumPy][3] and [Matplotlib][4] and solving the various dependencies, I learned about the [Anaconda Python distribution][5]. + +Anaconda is a complete, [open source][6] data science package with a community of over 6 million users. It is easy to [download][7] and install, and it is supported on Linux, MacOS, and Windows. + +I appreciate that Anaconda eases the frustration of getting started for new users. The distribution comes with more than 1,000 data packages as well as the [Conda][8] package and virtual environment manager, so it eliminates the need to learn to install each library independently. As Anaconda's website says, "The Python and R conda packages in the Anaconda Repository are curated and compiled in our secure environment so you get optimized binaries that 'just work' on your system." + +I recommend using [Anaconda Navigator][9], a desktop graphical user interface (GUI) system that includes links to all the applications included with the distribution including [RStudio][10], [iPython][11], [Jupyter Notebook][12], [JupyterLab][13], [Spyder][14], [Glue][15], and [Orange][16]. The default environment is Python 3.6, but you can also easily install Python 3.5, Python 2.7, or R. The [documentation][9] is incredibly detailed and there is an excellent community of users for additional support. + +### Installing Anaconda + +To install Anaconda on my Linux laptop (an I3 with 4GB of RAM), I downloaded the Anaconda 5.1 Linux installer and ran `md5sum` to verify the file: +``` +$ md5sum Anaconda3-5.1.0-Linux-x86_64.sh + +``` + +Then I followed the directions in the [documentation][17], which instructed me to issue the following Bash command whether I was in the Bash shell or not: +``` +$ bash Anaconda3-5.1.0-Linux-x86_64.sh + +``` + +`/home//.bashrc`?" I allowed it and restarted the shell, which I found was necessary for the `.bashrc` environment to work correctly. + +I followed the installation directions exactly, and the well-scripted install took about five minutes to complete. When the installation prompted: "Do you wish the installer to prepend the Anaconda install location to PATH in your?" I allowed it and restarted the shell, which I found was necessary for theenvironment to work correctly. + +After completing the install, I launched Anaconda Navigator by entering the following at the command prompt in the shell: +``` +$ anaconda-navigator + +``` + +Every time Anaconda Navigator launches, it checks to see if new software is available and prompts you to update if necessary. + +![](https://opensource.com/sites/default/files/styles/panopoly_image_original/public/u128651/anaconda-update.png?itok=wMk78pGQ) + +Anaconda updated successfully without needing to return to the command line. Anaconda's initial launch was a little slow; that plus the update meant it took a few additional minutes to get started. + +You can also update manually by entering the following: +``` +$ conda update anaconda-navigator + +``` + +### Exploring and installing applications + +Once Navigator launched, I was free to explore the range of applications included with Anaconda Distribution. According to the documentation, the 64-bit Python 3.6 version of Anaconda [supports 499 packages][18]. The first application I explored was [Jupyter QtConsole][19]. The easy-to-use GUI supports inline figures and syntax highlighting. + +![](https://opensource.com/sites/default/files/styles/panopoly_image_original/public/u128651/anaconda-jupyterqtconsole.png?itok=fQQoErIO) + +Jupyter Notebook is included with the distribution, so (unlike other Python environments I have used) there is no need for a separate install. + +![](https://opensource.com/sites/default/files/styles/panopoly_image_original/public/u128651/anaconda-jupyternotebook.png?itok=VqvbyOcI) + +I was already familiar with RStudio. It's not installed by default, but it's easy to add with the click of a mouse. Other applications, including JupyterLab, Orange, Glue, and Spyder, can be launched or installed with just a mouse click. + +![](https://opensource.com/sites/default/files/styles/panopoly_image_original/public/u128651/anaconda-otherapps.png?itok=9QmSUdel) + +One of the Anaconda distribution's strengths is the ability to create multiple environments. For example, if I wanted to create a Python 2.7 environment instead of the default Python 3.6, I would enter the following in the shell: +``` +$ conda create -n py27 python=2.7 anaconda + +``` + +Conda takes care of the entire install; to launch it, just open the shell and enter: +``` +$ anaconda-navigator + +``` + +Select the **py27** environment from the "Applications on" drop-down in the Anaconda GUI. + +![](https://opensource.com/sites/default/files/styles/panopoly_image_original/public/u128651/anaconda-navigator.png?itok=2i5qYAyG) + +### Learn more + +There's a wealth of information available about Anaconda if you'd like to know more. You can start by searching the [Anaconda Community][20] and its [mailing list][21]. + +Are you using Anaconda Distribution and Navigator? Let us know your impressions in the comments. + +-------------------------------------------------------------------------------- + +via: https://opensource.com/article/18/4/getting-started-anaconda-python + +作者：[Don Watkins][a] +选题：[lujun9972](https://github.com/lujun9972) +译者：[译者ID](https://github.com/译者ID) +校对：[校对者ID](https://github.com/校对者ID) + +本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译，[Linux中国](https://linux.cn/) 荣誉推出 + +[a]:https://opensource.com/users/don-watkins +[1]:https://www.r-project.org/ +[2]:https://www.python.org/ +[3]:http://www.numpy.org/ +[4]:https://matplotlib.org/ +[5]:https://www.anaconda.com/distribution/ +[6]:https://docs.anaconda.com/anaconda/eula +[7]:https://www.anaconda.com/download/#linux +[8]:https://conda.io/ +[9]:https://docs.anaconda.com/anaconda/navigator/ +[10]:https://www.rstudio.com/ +[11]:https://ipython.org/ +[12]:http://jupyter.org/ +[13]:https://blog.jupyter.org/jupyterlab-is-ready-for-users-5a6f039b8906 +[14]:https://spyder-ide.github.io/ +[15]:http://glueviz.org/ +[16]:https://orange.biolab.si/ +[17]:https://docs.anaconda.com/anaconda/install/linux +[18]:https://docs.anaconda.com/anaconda/packages/py3.6_linux-64 +[19]:http://qtconsole.readthedocs.io/en/stable/ +[20]:https://www.anaconda.com/community/ +[21]:https://groups.google.com/a/continuum.io/forum/#!forum/anaconda