Posts Tagged ‘ finance ’

Superimposing time series is the biggest source of silly theories

May 28, 2013
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Superimposing time series is the biggest source of silly theories

Business Insider (link) published the following chart and declared "the end of the car age in one chart". The chart superimposed the monthly motor vehicle miles driven per capita and the labor force participation rate. This is the conclusion of...

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Martingale et journalisme scientifique

April 8, 2013
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Martingale et journalisme scientifique

Être journaliste scientifique ne doit pas être facile. J’imagine qu’il faut être à l’écoute des nouvelles scientifiques, et d’informer, aussi justement que possible. C’est ce que fait avec brio Pierre Barthélémy (aka @PasseurSciences sur Twitter) dans sa chronique hebdomadaire sélection scientifique de la semaine. Il essaye ainsi de parler de sciences dans un journal qui a (trop) souvent confondu science et technologie (technologie étant aussi souvent un mot savant utilisé…

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Experiments with multiple dimensions

February 28, 2013
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Experiments with multiple dimensions

Reader (and author) Bernard L. sends us to the Economist (link), where they walked through a few charts they sketched to show data relating to the types of projects that get funded on Kickstarter. The three metrics collected were total...

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A straight line going nowhere fast, despite tweets and likes

February 18, 2013
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A straight line going nowhere fast, despite tweets and likes

Ken B., another Australian reader, wasn't too proud of this effort, apparently excerpted from an HSBC report by the Sydney Morning Herald (link): Ken: If you plot ranking by ranking it magically turns into a straight line. *** There are...

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Budding graphics connoisseurs from Down Under

November 29, 2012
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Budding graphics connoisseurs from Down Under

A reader, Stephen M., who's a high school math Information Technology teacher in Australia, assigned the following chart to his class as a Junk Charts style assignment. (link to original here) We have seen racetrack charts before (e.g. here or...

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Pull Yahoo Finance Key-Statistics Instantaneously Using XML and XPath in R

October 29, 2012
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Pull Yahoo Finance Key-Statistics Instantaneously Using XML and XPath in R

This two-part blog post I published a day ago required key-stats from Yahoo Finance for all the companies in the control group I created for my research.  I wanted all the key-stats pulled, arranged in a data-frame and then present them side-...

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Fifteen points, add confusion

October 29, 2012
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Fifteen points, add confusion

Bloomberg Markets (November) has this chart showing national debt as a percentage of GDP for selected countries. If you count the points, there are only 15 on the chart, three annual numbers for each of five countries. The theme appears...

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Sunday data/statistics link roundup (8/12/12)

August 12, 2012
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An interesting blog post about the top N reasons to do a Ph.D. in bioinformatics or computational biology. A couple of things that I find interesting and could actually be said of any program in biostatistics as well are: computing is the key skill of ...

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Hedge-fund bubbles are not nice

July 7, 2012
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Hedge-fund bubbles are not nice

Reader Sushil B. offers this chart from Business Week on hedge fund returns. (link) Unmoored bubbles, slanted text, positive and negative returns undifferentiated, bubble within bubble, paired data scattered apart, and it's not even that attractive. Here is a Bumps-chart...

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U.S. exceptionalism and billionaires

June 26, 2012
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U.S. exceptionalism and billionaires

Ryan McCarthy linked to a post by Ruchir Sharma running on Ezra Klein's blog analyzing global billionaires. It has an accompanying chart, which fails our self-sufficiency test. That test involves erasing raw data from a chart, and figuring out how...

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