2779 search results for "ggplot"

Coxcomb Plots and Spiecharts in R

January 20, 2014
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Coxcomb Plots and Spiecharts in R

I am not a great fan of pie charts since they are often

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Statistics meets rhetoric: A text analysis of "I Have a Dream" in R

January 20, 2014
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Statistics meets rhetoric: A text analysis of "I Have a Dream" in R

This article was first published on analyze stuff. It has been contributed to Anything but R-bitrary as the second article in its introductory series.By Max Ghenis Today, we celebrate the would-be 85th birthday of Martin Luther King, Jr., a man remembered for pioneering the civil rights movement through his courage, moral leadership, and oratory prowess. This post...

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Statistics meets rhetoric: A text analysis of “I Have a Dream” in R

January 20, 2014
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Statistics meets rhetoric: A text analysis of “I Have a Dream” in R

Today, we celebrate the would-be 85th birthday of Martin Luther King, Jr., a man remembered for pioneering the civil rights movement through his courage, moral leadership, and oratory prowess. This post focuses on his most famous speech, I Have a Dream given on the steps of the Lincoln Memorial to over...

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Why I Think Atletico De Madrid Will Win 2013/14 Spanish Liga Of Football

January 20, 2014
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Why I Think Atletico De Madrid Will Win 2013/14 Spanish Liga Of Football

Prediction is difficult, especially of the future (Mark Twain) Let me start with two important premises. First of all, I am not into football so I do not support any team. Second, this post is just an opinion based on mathematics but football, as all of you know, is not an exact science. Football is

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Second NYC R classes(announcement and teaching experience)

January 20, 2014
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Second NYC R classes(announcement and teaching experience)

(The photo was from our first offering of R classes) We are going to offer our Data Science by R (beginner level) course again in February. The goal of this class is to get students to a point where they are self-sufficient in R, are proficient at analyzing data and can take these skills back to their full-time jobs....

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Use standard deviation (not mad about MAD)

January 19, 2014
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Use standard deviation (not mad about MAD)

Nassim Nicholas Taleb recently wrote an article advocating the abandonment of the use of standard deviation and advocating the use of mean absolute deviation. Mean absolute deviation is indeed an interesting and useful measure- but there is a reason that standard deviation is important even if you do not like it: it prefers models that Related posts:

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Visualization Series: Using Scatterplots and Models to Understand the Diamond Market (so You Don’t Get Ripped Off)

January 19, 2014
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Visualization Series: Using Scatterplots and Models to Understand the Diamond Market (so You Don’t Get Ripped Off)

My last post railed against the bad visualizations that people often use to plot quantitive data by groups, and pitted pie charts, bar charts and dot plots against each other for two visualization tasks.  Dot plots came out on top. … Continue reading →

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Analyzing the DVI Indicator – Entry Power

January 15, 2014
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Analyzing the DVI Indicator – Entry Power

In a recent post, I did some analysis of the efficiency of the DVI indicator. That was pretty much all I had to say back then, but that quickly changed. While reading Building Reliable Trading Systems, by Keith Fitschen I stumbled upon an alternative way to visualize entry efficiency – the entry power. The chart

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USDA Textural Soil Classification

January 15, 2014
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USDA Textural Soil Classification

Included in the next version (1.0.3.1) of ggtern, will be a new data set, taken from the USDA Textural Soil Classification which we can use to reproduce the original diagram published by the United Stated Department of Agriculture. Firstly let us load the packages and data: Reconstructing the USDA’s Original Plot Now let us construct… The post USDA...

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Why R is Better Than Excel for Fantasy Football (and most other) Data Analysis

January 13, 2014
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Many articles have been written on why R is better than Excel for data analysis.  In this post, I will summarize the reasons why R is advantageous in most data The post Why R is Better Than Excel for Fantasy Football (and most other) Data Analysis appeared first on Fantasy Football Analytics.

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