CIs for Spearman’s rho and Kendall’s tau

May 18, 2020 | Thom

There are various methods for obtaining CIs for Kendall’s tau and Spearman’s rho. As the underlying data are unlikely to be bivariate normal (or else Pearson’s r would be used) bootstrapping is often recommended – but it doesn’t always perform that well (Bishara & Hittner, 2017). One could also ... [Read more...]

Build a data frame from vectors

May 18, 2020 | Quantargo Blog

Tabular data is the most common format used by data scientists. In R, tables are respresented through data frames. They can be inspected by printing them to the console. Understand why data frames are important Interpret console output created by a data frame Create a new data frame using the ...
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FOCI: a new method for feature selection

May 18, 2020 | matloff

It’s been a while since I’ve posted here, not for lack of material but just having too long a TO DO list. I’ve added some important features to my regtools package, for instance, and hope to discuss them here soon. For the present post, though, I will ...
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poorman: The Selectificator 2000!

May 17, 2020 | Random R Ramblings

Introduction Welcome to my series of blog posts about my data manipulation package, {poorman}. For those of you that don’t know, {poorman} is aiming to be a replication of {dplyr} but using only {base} R, and therefore be completely dependency free. What’s nice about this series is that ... [Read more...]

Quickly Making an R Shiny Bingo App

May 17, 2020 | Mark White

During the lockdown of the city, game nights are happening on Zoom a lot. I was asked if I could code up a bingo game—about an hour and a half before game time. I’m sure there’s probably some type of bingo game programmed in Shiny already, but ... [Read more...]

{ggcharts 0.2.0} is on CRAN

May 17, 2020 | R on Thomas' adventuRe

Introduction A week ago the second release of my {ggcharts} package was published on CRAN. {ggcharts} aims to get you to your desired plot faster. It provides a high-level interface for creating common plots using {ggplot2} and does the heavy lifting for you. The resulting plots are ggplot objects so ...
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another Bernoulli factory

May 17, 2020 | xi'an

A question that came out on X validated is asking for help in figuring out the UMVUE (uniformly minimal variance unbiased estimator) of (1-θ)½ when observing iid Bernoulli B(θ). As it happens, there is no unbiased estimator of this quantity and hence not UMVUE. But there exists a Bernoulli factory ...
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RcppArmadillo 0.9.880.1.0

May 17, 2020 | Thinking inside the box

Armadillo is a powerful and expressive C++ template library for linear algebra aiming towards a good balance between speed and ease of use with a syntax deliberately close to a Matlab. RcppArmadillo integrates this library with the R environment and... [Read more...]
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