Posts Tagged ‘ Statistical Graphics ’

Interactive visualizations of sampling and GP regression

December 9, 2017
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You really don’t want to miss Chi Feng‘s absolutely wonderful interactive demos. (1) Markov chain Monte Carlo sampling I believe this is exactly what Andrew was asking for a few Stan meetings ago: Chi Feng’s Interactive MCMC Sampling Visualizer This tool lets you explore a range of sampling algorithms including random-walk Metropolis, Hamiltonian Monte Carlo, […] The post Interactive visualizations of sampling and GP regression appeared first on Statistical Modeling,…

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How to improve this visualization of voting in the U.S. Congress?

November 30, 2017
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How to improve this visualization of voting in the U.S. Congress?

Richie Lionell points us to this interactive visualization of votes of U.S. Senators. It’s attractive. My big problem is that nothing is conveyed by the positions of the points along the circles. Thus, that cute image of the points moving around is a bit misleading. Maybe someone has a suggestion of how to do this […] The post How to improve this visualization of voting in the U.S. Congress? appeared…

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Visualize patterns of missing values

November 29, 2017
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Visualize patterns of missing values

Missing values present challenges for the statistical analyst and data scientist. Many modeling techniques (such as regression) exclude observations that contain missing values, which can reduce the sample size and reduce the power of a statistical analysis. Before you try to deal with missing values in an analysis (for example, [...] The post Visualize patterns of missing values appeared first on The DO Loop.

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“Dear Professor Gelman, I thought you would be interested in these awful graphs I found in the paper today.”

November 26, 2017
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“Dear Professor Gelman, I thought you would be interested in these awful graphs I found in the paper today.”

Mike Sances writes: I thought you would be interested in these awful graphs I found in the paper today. Sample attached [see above], but the article is full of them. My reply: This is indeed horrible in so many ways. I hope nobody was looking at that graph on their phone while driving! At the […] The post “Dear Professor Gelman, I thought you would be interested in these awful…

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Graphics software is not a tool that makes your graphs for you. Graphics software is a tool that allows you to make your graphs.

November 18, 2017
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I had an email exchange with someone the other day. He had a paper with some graphs that I found hard to read, and he replied by telling me about the software he used to make the graphs. It was fine software, but the graphs were, nonetheless, unreadable. Which made me realize that people are […] The post Graphics software is not a tool that makes your graphs for you.…

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Tips when conveying your research to policymakers and the news media

November 17, 2017
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Following up on a conversation regarding publicizing scientific research, Jim Savage wrote: Here’s a report that we produced a few years ago on prioritising potential policy levers to address the structural budget deficit in Australia. In the report we hid all the statistical analysis, aiming at an audience that would feel comfortable reading a broadsheet […] The post Tips when conveying your research to policymakers and the news media appeared…

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A SAS programming technique to modify ODS templates

October 30, 2017
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A SAS programming technique to modify ODS templates

This article demonstrates a SAS programming technique that I call Kuhfeld's template modification technique. The technique enables you to dynamically modify an ODS template and immediately call the modified template to produce a new graph or table. By following the five steps in this article, you can implement the technique [...] The post A SAS programming technique to modify ODS templates appeared first on The DO Loop.

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An alternative to the superplot

October 28, 2017
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An alternative to the superplot

Kevin Brown writes: I came across the lexicon link to your ‘super plots’ posting today. In it, you plot the association between individual income (X) and republican voting (Y) for 3 states: one assumed to be poor, one middle income, and one wealthy. An alternative way of plotting this, what I call a ‘herd effects […] The post An alternative to the superplot appeared first on Statistical Modeling, Causal Inference,…

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The diffogram and other graphs for multiple comparisons of means

October 18, 2017
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The diffogram and other graphs for multiple comparisons of means

In a previous article, I discussed the lines plot for multiple comparisons of means. Another graph that is frequently used for multiple comparisons is the diffogram, which indicates whether the pairwise differences between means of groups are statistically significant. This article discusses how to interpret a diffogram. Two related plots [...] The post The diffogram and other graphs for multiple comparisons of means appeared first on The DO Loop.

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Graphs for multiple comparisons of means: The lines plot

October 16, 2017
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Graphs for multiple comparisons of means: The lines plot

Last week Warren Kuhfeld wrote about a graph called the "lines plot" that is produced by SAS/STAT procedures in SAS 9.4M5. (Notice that the "lines plot" has an 's'; it is not a line plot!) The lines plot is produced as part of an analysis that performs multiple comparisons of [...] The post Graphs for multiple comparisons of means: The lines plot appeared first on The DO Loop.

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