Category Archives: programming

The use of R in official statistics conference 2018

On September 12-14 the 6th international conference on the use of R in official statistics (#uRos2018) will take place at the Dutch National Statistical Office in Den Haag, the Netherlands. The conference is aimed at producers and users of official … Continue reading

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Track changes in data with the lumberjack %>>%

So you are using this pipeline to have data treated by different functions in R. For example, you may be imputing some missing values using the simputation package. Let us first load the only realistic dataset in R > data(retailers, … Continue reading

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Announcing the simputation package: make imputation simple

I am happy to announce that my simputation package has appeared on CRAN this weekend. This package aims to simplify missing value imputation. In particular it offers standardized interfaces that make it easy to define both imputation method and imputation … Continue reading

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stringdist 0.9.4.2 released

stringdist 0.9.4.2 was accepted on CRAN at the end of last week. This release just fixes a few bugs affecting the stringdistmatrix function, when called with a single argument. From the NEWS file: bugfix in stringdistmatrix(a): value of p, for … Continue reading

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validate version 0.1.5 is out

A new version of the validate package for data validation was just accepted on CRAN and will be available on all mirrors in a few days. The most important addition is that you can now reference the data set as … Continue reading

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Easy data validation with the validate package

The validate package is our attempt to make checking data against domain knowledge as easy as possible. Here is an example. library(magrittr) library(validate) iris %>% check_that( Sepal.Width > 0.5 * Sepal.Length , mean(Sepal.Width) > 0 , if ( Sepal.Width > … Continue reading

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settings 0.2.3

An updated version of the settings package has been accepted on CRAN. The settings package provides alternative options settings management for R. It is aimed to allow for layered options management where global options are the default that can easily … Continue reading

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stringdist 0.9.4 and 0.9.3: distances between integer sequences

A new release of stringdist has been accepted on CRAN. stringdist offers a number of popular distance functions between sequences of integers or characters that are independent of character encoding. version 0.9.4 bugfix: edge case for zero-size for lower tridiagonal … Continue reading

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Stringdist 0.9.2: dist objects, string similarities and some deprecated arguments

On 24-06-2015 stringdist 0.9.2 was accepted on CRAN. A summary of new features can be found in the NEWS file; here I discuss the changes with some examples. Computing 'dist' objects with 'stringdistmatrix' The R dist object is used as … Continue reading

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stringdist 0.9: exercise all your cores

The latest release of the stringdist package for approximate text matching has two performance-enhancing novelties. First of all, encoding conversion got a lot faster since this is now done from C rather than from R. Secondly, stringdist now employs multithreading … Continue reading

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