# R bloggers

### Editorial Automation: Why & How to Set Up Chat-Ops for your Own Review System on GitHub

May 30, 2022 |

Anyone can contribute a software package to the rOpenSci suite as long as it fits our scope (research lifecycle software and statistical software) for a transparent, constructive, nonadversarial and open review. In practice, the review steps are all r... [Read more...]

### How to Perform a Log Rank Test in R

May 30, 2022 |

The post How to Perform a Log Rank Test in R appeared first on Data Science Tutorials  How to Perform a Log Rank Test in R, The most frequent technique to compare survival curves between two groups is to use a log-rank test. The following hypotheses are used in this ...

### Exercise 3: R numeric calculations

Find a function FUN that leads to the following output: FUN(pi) - FUN(exp(1)) ## [1] 1 Hint: aim to keep the answer simple. The main logic of the function can often be summarized in a single line of R code. Answer: click to reveal We can write th... [Read more...]

### April: “Top 40” New CRAN Packages

May 29, 2022 |

Computational Methods hmer v1.0.1: Provides objects and functions for Bayes Linear emulation and history matching, including functions for automated training of emulators, diagnostic functions to ensure suitability, and a variety of methods for generating waves of points. There is a vignette Demo of the package, an Emulation and History matching ...

### 8 New Books added to Big Book of R

May 29, 2022 |

29 May 2022 We’re closing in on the next milestone of 300 unique entries in Big Book of R! Today’s update has a bunch of really interesting additions, and thanks to Staurt Lodge and Tim Hendriks for some of the submissions. Before we dive into them, I want to let … The ...

### How to compare variances in R

May 28, 2022 |

The post How to compare variances in R appeared first on Data Science Tutorials How to compare variances in R?, The F-test is used to see if two populations (A and B) have the same variances. When should the F-test be used? A comparison of two variations is useful in ... [Read more...]

### Exercise 2: R vector operations

Find a function FUN that leads to the following output: x [Read more...]

### Best Books on Data Science with Python

May 28, 2022 |

The post Best Books on Data Science with Python appeared first on Data Science Tutorials Best Books on Data Science with Python, In the subject of data science, Python is one of the most extensively used programming languages. Pandas, NumPy, scikit-learn, Matplotlib, and SciPy are just a few of the ...

### Two Sample Proportions test in R-Complete Guide

May 27, 2022 |

The post Two Sample Proportions test in R-Complete Guide appeared first on Data Science Tutorials Two Sample Proportions test in R, To compare two observed proportions, the two-proportions z-test is utilized. This article explains the fundamentals of the two-proportions *z-test and gives practical examples using R software. We have two ... [Read more...]

### leaRn! (learn R)

May 27, 2022 |

All levels No prior experience required Certified RStudio Trainer (Tidyverse + Shiny) Also certified by The Carpentries at UofT Eight years of experience with R and databases See my email in the image.

### Street Maps (of Some Cities)

May 27, 2022 |

Over the last few days, I dabbled with maps in R. Two days ago, I made a map of all the cities I’ve visited. Today, I thought to make street maps of some of them (and other cool cities). [Read more...]

### Exercise 1: R vector operations

Find a function FUN that leads to the following output: x [Read more...]

### Summer School “Methods in Language Sciences” (16-20 August 2022, Ghent, Belgium): Registrations open

May 27, 2022 |

I was asked to advertise this summer school (I will be teaching a 2.5 day course on linear mixed modeling, and will give a keynote lecture on the use of Bayesian methods in linguistics/psychology). The text below is from the organizers.Summer School “M... [Read more...]

### Calculate the P-Value from Chi-Square Statistic in R

May 27, 2022 |

The post Calculate the P-Value from Chi-Square Statistic in R appeared first on Data Science Tutorials Calculate the P-Value from Chi-Square Statistic in R, You’ll get a Chi-Square test statistic every time you run a Chi-Square test. The p-value associated with this test statistic can then be used to ... [Read more...]

### useR! 2022 is almost here / casi ha llegado / approche à grands pas

May 27, 2022 |

[ES: Desplazándose hacia abajo por favor para el texto en español. FR: Faites défiler svp pour le text français.] Hello! The all-virtual useR! 2022 conference opens on 20 June – less than 1 month from now – with 6 keynotes, 18 tutorials, and dozens of talks and posters to choose from. Tutorial spots ...

### Natural Gas Prices Are Again on an Unsustainable Upward Trajectory …

May 27, 2022 |

I identified a real-time market condition in the natural gas market (symbol = UNG) on LinkedIn and followed up on a prior r-bloggers post here.  The market ultimately declined 42% following the earlier breach of its identified unsustainable Stealth Support Curve.  Chart from earlier r-blogger post In short order, this same market ...

### Calculate the p-Value from Z-Score in R

May 27, 2022 |

The post Calculate the p-Value from Z-Score in R appeared first on Data Science Tutorials Calculate the p-Value from Z-Score in R, In statistics, we frequently want to know the p-value associated with a specific z-score obtained from a hypothesis test. We can reject the null hypothesis of our hypothesis ... [Read more...]

### Revisiting a lying chart

May 26, 2022 |

Summary I critique and correct a well-known visual lie from a 2015 Congressional hearing in which the authors abuse chart-making conventions to serve their rhetorical goals. I explore what authentic stories these data tell and what authen...

### Splitting RCGAL… and the connected components

May 26, 2022 |

I published two posts here about my package RCGAL, the first one about surface reconstruction, and the second one about Boolean operations on 3D meshes. Now I decided to spli... [Read more...]

### useR! 2022 [all virtual]

May 26, 2022 |

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