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Pipe-friendly workflow with sjPlot, sjmisc and sjstats, part 1 #rstats #tidyverse

November 14, 2016
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Pipe-friendly workflow with sjPlot, sjmisc and sjstats, part 1 #rstats #tidyverse

Recent development in R packages are increasingly focussing on the philosophy of tidy data and a common package design and api. Tidy data is an important part of data exploration and analysis, as shown in the following figure: Tidying data not only includes data cleaning, but also data transformation, both being necessary to perform the

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Tagged NA values and labelled data #rstats

September 27, 2016
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Tagged NA values and labelled data #rstats

sjmisc-package: Working with labelled data A major update of my sjmisc-package was just released an CRAN. A major change (see changelog for all changes )is the support of the latest release from the haven-package, a package to import and export SPSS, SAS or Stata files. The sjmisc-package mainly addresses three domains: reading and writing data

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Effect-Size Calculation for Meta-Analysis in R #rstats

September 8, 2016
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Effect-Size Calculation for Meta-Analysis in R #rstats

When conducting meta-analysis, you most likely have to calculate or convert effects sizes into an effect size with common measure. There are various tools to do this – one easy to use tool is the Practical Meta-Analysis Effect Size Calculator from David B. Wilson. This online-tool is now implemented as an R-package: esc: Effect Size

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Pipe-friendly bootstrapping with list-variables in #rstats

August 1, 2016
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Pipe-friendly bootstrapping with list-variables in #rstats

A few days ago, my package sjstats was updated on CRAN. Most functions of this package are convenient functions for common statistical computations, especially for (mixed) regression models. This latest update introduces some pipe-friendly bootstrapping-methods, namely bootstrap(), boot_ci(), boot_se() and boot_p(). In this post, I just wanted to give a quick example of these functions,

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Data visualization in social sciences – what’s new in the sjPlot-package? #rstats

May 19, 2016
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Data visualization in social sciences – what’s new in the sjPlot-package? #rstats

My sjPlot package just reached version 2.0 and got many updates during the couple of last months. The focus was less on adding new functions; rather, I improved existing functions by adding new smaller and bigger features to make working with the package easier and more reliable. In this blog post, I will report some … Data visualization...

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Gender Effect in Conference Talks

December 21, 2015
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Gender Effect in Conference Talks

I was searching in the arXiv repository for an interesting paper to read over the weekend, when I found this: "Studying Gender in Conference Talks -- data from the 223rd meeting of the American Astronomical Society". The title and figures caught my attention more than the subject of the conference, I've to confess. The plot below, taken from the...

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Data, data, data

December 13, 2015
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Data, data, data

Having presented preliminary findings from a national sample of therapeutic communities in Brazil, I thought the Babbage's words fits like a glove for those criticizing quantitative approaches for policy evaluations: the "Errors using inadequate data are much less than those using no data at all” (Charles Babbage).

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Venezuelan Parliamentary Election: What do the Polls Say?

December 5, 2015
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Venezuelan Parliamentary Election: What do the Polls Say?

There is not a huge population of opinion polls covering this parliamentary election in Venezuela, but all I've can be used to gauge the public opinion by the local polling houses. This posting begs an obvious question: how has the mood in Venezuela varied over time with respect to voting intentions for the two political blocs? Next, can we...

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Venezuela’s 2015 Parliamentary Elections

December 3, 2015
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Venezuela’s 2015 Parliamentary Elections

Next Sunday Venezuelans are heading to the polls once again with international concerns about the clearness of the balloting. To get an idea about the political climate over there, I've collected some polls available on the internet. The surprising thing from those surveys is a tremendous variability from pollster to pollster about the single topic of voting intention....

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Retrieving Data from Google Books with `ngramr`

November 14, 2015
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Retrieving Data from Google Books with `ngramr`

Karl Marx is the most famous founding fathers of modern sociology with a popularity peak in 1975-6, but declining ever since. Introduction Google has a tool for tracking the frequency of words or phrases across its vast collection of scanned texts, the Google Books. The Google Ngram Viewer reports data and graphs the frequency of words encountered...

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