Statistics

Statistics Blogs

What are they doing …. ?

May 22, 2018
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What are they doing …. ?

… and how do statistical institutions present what they do? In times of fake news and austerity measures, statistical offices are feeling more and more the urge to orientate the public about themselves and the usefulness and necessity of trustworthy statistics. But how to proceed? Public relations specialists know countless ways to get messages to […]

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Top 100 Economics Blogs

May 22, 2018
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Check out the latest "Top 100 Economics Blogs" here. The blurb for No Hesitations (under "Sub-field Economic Blogs") is pretty funny, issuing a stern warning: His blog is primarily focused on statistics and econometrics, and is highly technical. T...

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On the interpretation of a regression model

May 18, 2018
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On the interpretation of a regression model

Yesterday, NaytaData (aka @NaytaData ) posted a nice graph on reddit, with bicycle traffic and mean air temperature, in Helsinki, Finland, per day, I found that graph interesting, so I did ask for the data (NaytaData kindly sent them to me tonight). df=read.csv("cyclistsTempHKI.csv") library(ggplot2) ggplot(df, aes(meanTemp, cyclists)) + geom_point() + geom_smooth(span = 0.3) But as mentioned by someone on twitter, the interpretation is somehow trivial : people get out on their…

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Ready Made Plots make Work Easier

May 16, 2018
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Ready Made Plots make Work Easier

A while back Simon Jackson and Kara Woo shared some great ideas and graphs on grouped bar charts and density plots (link). Win-Vector LLC‘s Nina Zumel just added a graph of this type to the development version of WVPlots. Nina has, as usual, some great documentation here. More and more I am finding when you … Continue reading Ready Made Plots make Work Easier

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Cleaning up tables

May 16, 2018
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This post is re-published from my blog. Please see it for the latest updates from May 16, 2018. Context One of things I have to do quite often is create tables for papers and presentations. Often the “Table 1” of a paper has descriptives about the study, broken down by subgroups. For presentation purposes, it […]

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Robustness and tests for equal variance

May 16, 2018
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The two-sample t-test is a way to test whether two data sets come from distributions with the same mean. I wrote a few days ago about how the test performs under ideal circumstances, as well as less than ideal circumstances. This is an analogous post for testing whether two data sets come from distributions with the same […]

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Using large numbers to impress the impressionable

May 16, 2018
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Using large numbers to impress the impressionable

Kaiser Fung, founder of Principal Analytics Prep, discusses Facebook's claim of removing millions of fake accounts.

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Scaling of MCMC with dimension (experiments)

May 15, 2018
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Scaling of MCMC with dimension (experiments)

Hi all, In this post, I’ll go through numerical experiments illustrating the scaling of some MCMC algorithms with respect to the dimension. I will focus on a simple setting, to illustrate some theoretical results developed by Gareth Roberts, Andrew Stuart, Alexandros Beskos, Jeff Rosenthal and many of their co-authors over many years, for instance here […]

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Capriciousness of little health benefits

May 15, 2018
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Capriciousness of little health benefits

Kaiser Fung, author of Numbersense and founder of Principal Analytics Prep, explains why he doesn't care about health benefits of most foods and activities reported and recommended by the media.

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Monetary Policy and Global Spillovers

May 14, 2018
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The Bank of Chile's latest Annual Conference volume, Monetary Policy and Global Spillovers: Mechanisms, Effects, and Policy Measures, is now out, here.  In addition to the research presented in the volume, I also love the picture on its front...

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