September 2019

Getting Your Comparison Groups Right

September 6, 2019 | R on Sam Portnow's Blog

Often, when presented with evidence of racism, or the existence of racism, critics will say neither exists, at least not in a meaningful way because many immigrant groups have higher household incomes than White Americans. These critics often point to the median household income of Nigerian Americans are irrefutable proof ...
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Calendar Heatmaps in ggplot

September 6, 2019 | R on Ryan Plant

Calendar heatmaps are a neglected, but valuable, way of representing time series data. Their chief advantage is in allowing the viewer to visually process trends in categorical or continuous data over a period of time, while relating these values to their month, week, and weekday context - something that simple ...
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The most annoying warning for CRAN submission

September 6, 2019 | Neonira

When submitting one R package to CRAN, you must ensure that no errors, no warnings and no notes appears in the check process, enforcing use of ’–as.cran’ option. devtools::check(document = FALSE, args = c('--as-cran')) Sometimes a note or a...
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Stopping Rules for Significance Testing in R

September 5, 2019 | [R]eliability

When doing comparative testing it can be tempting to stop when we see the result that we hoped for. In the case of null hypothesis significance testing (NHST), the desired outcome is often a p-value of __ .05. In the medical device industry, bench top testing can cost a lot of money. ...
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UCSCXenaTools: Retrieve Gene Expression and Clinical Information from UCSC Xena for Survival Analysis

September 5, 2019 | rOpenSci - open tools for open science

The UCSC Xena platform provides an unprecedented resource for public omics data from big projects like The Cancer Genome Atlas (TCGA), however, it is hard for users to incorporate multiple datasets or data types, integrate the selected data with popular analysis tools or homebrewed code, and reproduce analysis procedures. To ...
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Simulating the Rugby World Cup 2019 Japan in R

September 5, 2019 | stats_on_the_cloud

I really like running simulation models before sporting events because they can give you a much greater depth of understanding of team performance compared to the ‘raw’ odds that you might get from the media or bookmakers, or the often varied opinions of different sports pundits. Yes, Ireland usually get ... [Read more...]

Chi-Square and the Egon Pearson correction

September 5, 2019 | Thom

Looking back at the coverage of the Chi-Square test of independence in the book there are a couple of things I wish I’d gone into greater depth on. First, resolving the debate on the appropriate way to handle small expected values in the test of independence. Second, expanding on ... [Read more...]

CSS Enhances R Shiny; SASS Enhances CSS

September 5, 2019 | Joseph Cha

CSS is older than the hills, almost as old as HTML itself, but it provides dramatic improvements in style and sanity in your R Shiny applications. And it will save you time! In this post I’ll give you a quick overview of CSS; I’ll show you how to ...
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