Blog Archives

Simple data mining and plotting data on a map with ggplot2

April 2, 2012
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Simple data mining and plotting data on a map with ggplot2

In this post I use OpenStreetsMaps and ggplot2 to plot geographically were psychologists live, using data from a facebook document.

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Ggplot2, PubMed citation frequency and DSM-IV Axis I disorders by year

March 31, 2012
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Ggplot2, PubMed citation frequency and DSM-IV Axis I disorders by year

I searched PubMed for several major DSM-IV disorders and downloaded the hits. Using ggplot2 I plotted the number of publications each year for each disorder.

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Psychotherapies PubMed battle

March 29, 2012
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Psychotherapies PubMed battle

Ever wondered how different psychotherapy orientations match up in a PubMed battle? Continue reading to find out and to see how to test this using R and Ggplot2.

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Using Ggplot2 to plot last.fm top 100 albums

March 22, 2012
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Using Ggplot2 to plot last.fm top 100 albums

I found out that last.fm had made data files available for their Best of 2011 artist list, and I thought it'd be a great opportunity to learn some more about data management in R and Ggplot2.

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Monty Hall Simulations

March 20, 2012
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Using R I'm doing a lot of simulations of the classic monty hall-problem and plotting multiple simulations using ggplot2.

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Day #54 Major bugfix

June 1, 2011
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It seems that Rserve works in a 1 byte charactersystem. This was giving us strange results. When I read in data from KNIME with strange characters like µ the errors began. Every time I used the character “µ”, my output in Rserve would be:...

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Day #38-39 Data-manipulation Part 1

May 10, 2011
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Last week i created some plots, always for 1 feature. Today I started working on the full script that creates all these plots, 1 per feature. This means, using for loops in R. Let’s see how this is going to work out. Today I mostly worked on data...

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Day #35 replacing characters

May 4, 2011
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Today I had a meeting with Emmanuel. He is a guy from inside Janssen who is very good with R-scripts. He made a lot of great plots which I had to use for our reports. During the meeting we came to a conclusion that all the difficult R-scripting he did,...

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Day #34 Detailing graphs

May 3, 2011
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Today mostly existed in adding details or changing certain aspects of my graphs. For example, I had to turn around the y-axis on my levelplot, circleplot, … which wasn’t so easy at first. But after a bit of googling I found out I had to rev...

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Day #32-33 reporting, R and Birt

May 2, 2011
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I’m starting on my real R-Scripts now. We got an assesment for some Reports and they needed my graphs and Veerle’s Reports. So the tasks are: Well distribution plot Quality plate control Surface Plot Heatmap CirclePlot and more to come&#823...

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