Blog Archives

Mapping unemployment data, 2016

January 30, 2017
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Mapping unemployment data, 2016

The last few posts at Sharp Sight have been fairly intense. Let’s make a quick map ... The post Mapping unemployment data, 2016 appeared first on SHARP SIGHT LABS.

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How to do an analysis in R (part 2, visualization and analysis)

January 24, 2017
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How to do an analysis in R (part 2, visualization and analysis)

In several recent blog posts, I've emphasized the importance of data analysis. My main point has been, that if you want to learn data science, you need to learn data analysis. Data analysis is the foundation of practical data science. With that statement in mind, I want to show you step-by-step what an analysis looks like in R ... The post...

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How to really do an analysis in R (part 1, data manipulation)

January 16, 2017
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How to really do an analysis in R (part 1, data manipulation)

For a couple of years, I’ve been writing about the importance of data analysis, saying that data analysis is essentially the foundation of data science itself. While I admit that there’s room for argument (and I admit that the reality is a little more nuanced) I still firmly believe that data analysis is the true The post How to...

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The best R package for learning to “think about visualization”

January 10, 2017
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The best R package for learning to “think about visualization”

As a beginning data scientist, you’ll have quite a few subject areas that you need to learn (and eventually master). While you’ll certainly need to learn some math and statistics, math and stats are not the first things I recommend to most beginners. Almost always, I recommend that people start with data visualization. The reason The post The best...

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Why R is the best data science language to learn today

January 3, 2017
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Why R is the best data science language to learn today

In last week’s blog, I explained why you should Master R (even if it may eventually become obsolete). I wrote that article to address people who claim mastering R is a bit of a waste of time (because it will eventually become obsolete). But when I suggested that R may eventually become obsolete, this seemed The post Why R...

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Why you should master R (even if it might eventually become obsolete)

December 27, 2016
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In last week’s blog post I asked How much data science do you actually remember? It’s a critical question. If you study data science, but forget everything that you learn, you’ll be in big trouble when you go in for an interview. Or, you’ll be in big trouble if you actually get a data science The post Why you...

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How much data science do you actually remember?

December 20, 2016
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How much data science do you actually remember?

How many data science books have you read? 5? 10? A few dozen? How many free online courses have you taken? A few? How many blog posts have you read? (I’d be willing to bet: you’ve read dozens.) If you’re like most budding data scientists, you’ve probably consumed a lot of material. You probably even The post How much...

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A simple histogram (and why you need to practice it)

November 22, 2016
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A simple histogram (and why you need to practice it)

The histogram is a very useful visualization tool, and you need to master it. The post A simple histogram (and why you need to practice it) appeared first on SHARP SIGHT LABS.

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How to make a simple heatmap in ggplot2

November 15, 2016
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How to make a simple heatmap in ggplot2

In the world of data visualization, the heatmap is underrated and underutilized. It has limitations, but overall, it’s an excellent tool in your data science and data visualization toolkit. After you’ve mastered the foundational visualization techniques (you can write the code for the basic plots in your sleep, right?), you should learn the heatmap.   The post How to...

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Stop trying to jump to the sexy stuff first

September 21, 2016
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A few weeks ago, an acquaintance told me that he was interested in getting started with machine learning. He’s a web developer who primarily works in Ruby and Python, but also has a small amount of experience with R. Day-to-day, his work is run-of-the-mill web development, and he’s confessed to me that he’s a bit The post Stop trying...

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