Why xkcd-style graphs are important
For most data scientists, a toolkit like scipy/matplotlib or R becomes so familiar that it becomes almost an extension of their own mind. When fleshing out an idea, we will just open up ipython, write a few lines of code, and display the plot on the screen to get a feel for the general idea. One very nice thing about such toolkits is that although the code may be short and simple, the plots are be
Don't use Hadoop - your data isn't that big
"So, how much experience do you have with Big Data and Hadoop?" they asked me. I told them that I use Hadoop all the time, but rarely for jobs larger than a few TB. I'm basically a big data neophite - I know the concepts, I've written code, but never at scale. The next question they asked me. "Could you use Hadoop to do a simple group by and sum?" Of course I could, and I just told them I needed t
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