Posts Tagged ‘ Statistical Graphics ’

Perceptions of probability

May 3, 2017
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Perceptions of probability

If a financial analyst says it is "likely" that a company will be profitable next year, what probability would you ascribe to that statement? If an intelligence report claims that there is "little chance" of a terrorist attack against an embassy, should the ambassador interpret this as a one-in-a-hundred chance, [...] The post Perceptions of probability appeared first on The DO Loop.

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Blue Cross Blue Shield Health Index

April 29, 2017
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Chris Famighetti points us to this page which links to an interactive visualization. There are some problems with the mapping software—when I clicked through, it showed a little map of the western part of the U.S., accompanied by huge swathes of Canada and the Pacific Ocean—and I haven’t taken a look at the methodology. But […] The post Blue Cross Blue Shield Health Index appeared first on Statistical Modeling, Causal…

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Visualize a design matrix

April 26, 2017
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Visualize a design matrix

Most SAS regression procedures support a CLASS statement which internally generates dummy variables for categorical variables. I have previously described what dummy variables are and how are they used. I have also written about how to create design matrices that contain dummy variables in SAS, and in particular how to [...] The post Visualize a design matrix appeared first on The DO Loop.

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Visualize an ANOVA with two-way interactions

April 24, 2017
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Visualize an ANOVA with two-way interactions

There are several ways to visualize data in a two-way ANOVA model. Most visualizations show a statistical summary of the response variable for each category. However, for small data sets, it can be useful to overlay the raw data. This article shows a simple trick that you can use to [...] The post Visualize an ANOVA with two-way interactions appeared first on The DO Loop.

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Visualize the 68-95-99.7 rule in SAS

April 17, 2017
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Visualize the 68-95-99.7 rule in SAS

A reader commented on last week's article about constructing symmetric intervals. He wanted to know if I created it in SAS. Yes, the graph, which illustrates the so-called 68-95-99.7 rule for the normal distribution, was created by using several statements in the SGPLOT procedure in Base SAS The SERIES statement [...] The post Visualize the 68-95-99.7 rule in SAS appeared first on The DO Loop.

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Aggregate age-adjusted trends in death rates for non-Hispanic whites and minorities in the U.S.

March 31, 2017
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Aggregate age-adjusted trends in death rates for non-Hispanic whites and minorities in the U.S.

Following up on our recent Slate article, Jonathan Auerbach made some graphs of mortality rate trends by sex, ethnicity, and age group, aggregating over the entire country. Earlier we’d graphed the trends within each state but there was so much going on there, it was hard to see the big picture. All our graphs are […] The post Aggregate age-adjusted trends in death rates for non-Hispanic whites and minorities in…

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Easier-to-download graphs of age-adjusted mortality trends by sex, ethnicity, and age group

March 29, 2017
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Easier-to-download graphs of age-adjusted mortality trends by sex, ethnicity, and age group

Jonathan Auerbach and I recently created graphs of smoothed age-adjusted mortality trends from 1999-2014 for: – 50 states – men and women – non-hispanic whites, blacks, and hispanics – age categories 0-1, 1-4, 5-14, 15-24, 25-34, 35-44, 45-54, 55-64, 65-74, 75-84. We posted about this on the blog and also wrote an article for Slate […] The post Easier-to-download graphs of age-adjusted mortality trends by sex, ethnicity, and age group…

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Crack Shot

March 29, 2017
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Crack Shot

Raghu Parthasarathy writes: You might find this interesting, an article (and related essay) on the steadily declining percentage of NIH awards going to mid-career scientists and the steadily increasing percentage going to older researchers. The key figure is below. The part that may be of particular interest to you, since you’ve written about age-adjustment in demographic work: does […] The post Crack Shot appeared first on Statistical Modeling, Causal Inference, and Social Science.

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What colors does PROC SGPLOT use for markers?

February 6, 2017
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What colors does PROC SGPLOT use for markers?

Suppose you create a scatter plot in SAS with PROC SGPLOT. What color does PROC SGPLOT use for the markers? If you specify the GROUP= option so that markers are colored by a grouping variable, what colors are used to represent the various groups? The following scatter plot shows the [...] The post What colors does PROC SGPLOT use for markers? appeared first on The DO Loop.

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Automate the creation of a discrete attribute map

January 30, 2017
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Automate the creation of a discrete attribute map

If you are a SAS programmer and use the GROUP= option in PROC SGPLOT, you might have encountered a thorny issue: if you use a WHERE clause to omit certain observations, then the marker colors for groups might change from one plot to another. This happens because the marker colors [...] The post Automate the creation of a discrete attribute map appeared first on The DO Loop.

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