Blog Archives

Parameterized SQL queries

August 5, 2014
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Mateusz Żółtak asked me to spread the word about his new R package for parameterized SQL queries. Below you can find the copy of package vignette. If you work with SQL in R you may find it useful. Mateusz Żółtak The package RODBCext is an extension of the RODBC database connectivity package. It provides support

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Submissions in the DataVis contest at useR!2014

June 30, 2014
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Wonder how submissions to the DataVis contest at useR!2014 (see contest webpage) look like? There are 8 submissions in the track 1 (schools matter) and 10 submissions in the track 2 (inequalities in academic achievement). You can see all submissions (w...

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Gender gap and visualisation challenge @ useR!2014

June 20, 2014
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Gender gap and visualisation challenge @ useR!2014

7 days to go for submissions in the DataVis contest at useR!2014 (see contest webpage). Note that the contest is open for all R users, not only conference participants. Submit your solution soon! PISA dataset allows to challenge some ,,common opinions”, like are boys or girls better in math / reading. But, how to compare

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Proficiency levels @ PISA and visualisation challenge @ useR!2014

June 13, 2014
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Proficiency levels @ PISA  and visualisation challenge @ useR!2014

16 days to go for submissions in the DataVis contest at useR!2014 (see contest webpage). The contest is focused on PISA data and students’ skills. The main variables that reflect pupil skills in math / reading / science are plausible values e.g. columns PV1MATH, PV1READ, PV1SCIE in the dataset. But, these values are normalized to

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Are they happy at school? PISA data and visualisation challange @ useR!2014

June 3, 2014
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Are they happy at school? PISA data and visualisation challange @ useR!2014

I hope you have already heard about DataVis contest at useR!2014 (in case you did not, here is more information: http://www.oecd.org/pisa/pisaproducts/datavisualizationcontest.htm). As a jury member I am not going to submit any work, but I am going to encourage you to play with the data, crunch a finding and submit interesting plot. How easy is

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Data visualisation challange at useR 2014 conference

May 27, 2014
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Data visualisation challange at useR 2014 conference

Familiar with R and DataVis? Take a try in PISA data visualisation contest for useR2014 participants. There are two contest tracks. In each you can win 700$. More information about the contest can be found here: http://www.oecd.org/pisa/pisaproducts/datavisualizationcontest.htm. The prizes are funded by The Organisation for Economic Co-operation and Development (OECD) and tracks are related to

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PISA 2012, occupations and the shiny app

February 19, 2014
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PISA 2012, occupations and the shiny app

OECD has just released a new PISA in Focus titled “Do parents’ occupations have an impact on student performance?”. A shiny app is an add-on to this article, you can open it from this link: http://beta.icm.edu.pl/PISAoccupations2012/. The app allows for comparisons of average performance in mathematics/reading/science of 15-years old pupils in PISA study across different

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The PISA2003lite package is released. Let’s explore!

August 20, 2013
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The PISA2003lite package is released. Let’s explore!

Today I’m going to show how to install PISA2003lite, what is inside and how to use this R package. Datasets from this package will be used to compare student performance in four math sub-areas across different countries. At the end of the day we will find out in which areas top performers from different countries

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The PISA2009lite package is released

June 20, 2013
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The PISA2009lite package is released

This post introduces a new R package named PISA2009lite. I will show how to install this package, what is inside and how to use it. Introduction PISA (Programme for International Student Assessment) is a worldwide study focused on measuring performance of 15-year-old school pupils. More precisely, scholastic performance on mathematics, science and reading is measured

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