by Joseph Rickert Few of us have enough time to read, and most of us already have depressingly deep stacks of material that we would like to get through. However, sometimes a random encounter with something interesting is all that it takes to regenerate enthusiasm. Just in case you are ... [Read more...]

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Ordnance Survey have a great OpenRoads dataset, but unfortunately it contains a column called ‘primary’, which is a keyword in SQL. This makes it challenging/impossible to import the OpenRoads dataset into a SQL… Continue reading → [Read more...]

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purrr is a package that extends R’s functional programming capabilities. It brings a lot of new stuff to the table and in this post I show you some of the most useful (at least to me) functions included in purrr. Getting rid of loops with map()

library(purrr)

numbers <- list(11, 12, 13, 14)

map_dbl(numbers, sqrt)

## [1] 3.316625 3.464102 3.605551 3.741657

You ... [Read more...]

purrr is a package that extends R’s functional programming capabilities. It brings a lot of new stuff to the table and in this post I show you some of the most useful (at least to me) functions included in purrr. Getting rid of loops with map()

library(purrr)

numbers <- list(11, 12, 13, 14)

map_dbl(numbers, sqrt)

## [1] 3.316625 3.464102 3.605551 3.741657

You ... [Read more...]

purrr is package that extends R’s functional programming capabilities. It brings a lot of new stuff to the table and in this post I show you some of the most useful (at least to me) functions included in purrr. Getting rid of loops with map()

library(purrr)

numbers <- list(11, 12, 13, 14)

map_dbl(numbers, sqrt)

## [1] 3.316625 3.464102 3.605551 3.741657

You might ... [Read more...]

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A while ago I developed and shared an emoji decoder because I was facing problems when retrieving data from Twitter and Instragram. In a nutshell, the issue is that R encodes emojis in a way that makes it a hassle identifying them. This is where t... [Read more...]

Very happy to announce a new package of mine is now up on the CRAN repository network: RApiDatetime. It provides six entry points for C-level functions of the R API for Date and Datetime calculations: asPOSIXlt and asPOSIXct convert between long and compact datetime representation, formatPOSIXlt and Rstrptime convert to ... [Read more...]

This was originally posted at Point Mass Prior and features MathML. If you’re viewing the blog elsewhere the math probably won’t show up properly and it would be beneficial to view the post here I official submitted version 1.0.0 of docstring to... [Read more...]

Few of us have enough time to read, and most of us already have depressingly deep stacks of material that we would like to get through. However, sometimes a random encounter with something interesting is all that it takes to regenerate enthusiasm. Just in case you are not going to ... [Read more...]

Few of us have enough time to read, and most of us already have depressingly deep stacks of material that we would like to get through. However, sometimes a random encounter with something interesting is all that it takes to regenerate enthusiasm. Just in case you are not going to ... [Read more...]

[Read more...]

QR decomposition is another technique for decomposing a matrix into a form that is easier to work with in further applications. The QR decomposition technique decomposes a square or rectangular matrix, which we will denote as , into two components, , and . Where is an orthogonal matrix, and is... The post QR ... [Read more...]

by Shahrokh Mortazavi, Partner PM, Visual Studio Cloud Platform Tools at Microsoft I’m delighted to announce the general availability of R Tools 1.0 for Visual Studio 2015 (RTVS). This release will be shortly followed by R Tools 1.0 for Visual Studio 2017 in early May. RTVS is a free and open source plug-in ... [Read more...]

We recently released the survminer verion 0.3, which includes many new features to help in visualizing and sumarizing survival analysis results. In this article, we present a cheatsheet for survminer, created by Przemysław Biecek, and provide an overview of main functions. survminer cheatsheet The cheatsheet can be downloaded from STHDA ... [Read more...]

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