1931 search results for "time series"

The Most Comprehensive Review of Comic Books Teaching Statistics

June 11, 2014
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The Most Comprehensive Review of Comic Books Teaching Statistics

As I’m more or less an autodidact when it comes to statistics, I have a weak spot for books that try to introduce statistics in an accessible and pedagogical way. I have therefore collected what I believe are all books that introduces statistics using comics (at least those written in English). What follows are highly subjective reviews of those...

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Trend Vigor Part III: ATR position sizing, Annualized Sharpe above 1.4, and Why Leverage Is Pointless

June 11, 2014
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Trend Vigor Part III: ATR position sizing, Annualized Sharpe above 1.4, and Why Leverage Is Pointless

To continue the investigation of Trend Vigor (see part 1 here, and part 2 here), let’s examine the importance of … Continue reading →

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Can You Track Me Now? (Visualizing Xfinity Wi-Fi Hotspot Coverage) [Part 1]

June 6, 2014
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Can You Track Me Now? (Visualizing Xfinity Wi-Fi Hotspot Coverage) [Part 1]

This is the first of a two-part series. Part 1 sets up the story and goes into how to discover, digest & reformat the necessary data. Part 2 will show how to perform some basic visualizations and then how to build beautiful & informative density maps from the data and offer some suggestions as to how to prevent potential tracking. Xfinity...

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Tolerance and numerical analysis

June 5, 2014
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Tolerance and numerical analysis

This is a companion post to the article What’s the ROI of your loan? It depends…, which discusses approaches for …Continue reading →

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RcppArmadillo 0.4.300.8.0

A new minor / bug fix release 4.300.8 of Armadillo, the templated C++ library for linear algebra, was tagged by Conrad in his SVN repo a few days ago, following earlier snapshots in the 4.300.* series. We had prepared two earlier releases for GitHub...

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Introducing R for Big Data with PivotalR

June 4, 2014
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Introducing R for Big Data with PivotalR

Wouldn't it be great if there was a way to harness the familiarity and usability of a tool like R, and at the same time take advantage of the performance and scalability benefits of in-database/in-Hadoop computation? We're happy to announce PivotalR, a package that translates R code into SQL for processing, is available to download from GitHub today.

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Collaborative lesson development with GitHub

June 2, 2014
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If you're doing any kind of scientific computing and not using version control, you're doing it wrong. The git version control system and GitHub, a web-based service for hosting and collaborating on git-controlled projects, have both become wildly popu...

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Weekend at Bernoulli’s

June 1, 2014
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Weekend at Bernoulli’s

I have been doing some background reading on group sequential trials for an upcoming project. One of the papers I came across in terms of the required numerical methods is "Repeated Significance Tests on Accumulating Data" (Armitage, et al, 1969). In t...

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Portraying Your Field Sites to Others and Your Future Self Part 1: Little Planets

May 30, 2014
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Portraying Your Field Sites to Others and Your Future Self Part 1: Little Planets

I have been experimenting recently with using my relatively inexpensive camera to capture the feeling or sense of a place I am in, with an eye towards collecting a record of field sites in my ecological work. The key is for it to be more immersive th...

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Your Life in Weeks

May 29, 2014
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Your Life in Weeks

This week, I discovered a picture on http://waitbutwhy.com/, which represent a (so-called) typical human life, in weeks, I found that interesting. But the first problem is that I don’t understand the limit, below: 90 years, that’s not the average life length. That’s not what you should expect to live when you get born. The second problem is that it cannot be...

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