Blog Archives

The paper helicopter experiment

May 17, 2015
By

The paper helicopter is one of the devices to explain about design of experiments. The aim is to create the longest flying paper helicopter by means of experimental design.Paper helicopters are a nice example, because they are cheap to make, easy to te...

Read more »

U-boats in WW-II

May 10, 2015
By
U-boats in WW-II

This is the time when we celebrate the end of the second world war in The Netherlands, so I thought to do somwthig with data from that era. One of the things I enjoyed were books on the sea warfare, such as 'The Cruel Sea'by Nicholas Monsarrat. In that...

Read more »

Should I use premium Diesel? Result: No

May 2, 2015
By
Should I use premium Diesel? Result: No

A while ago I had a post: 'Should I use premium Diesel? Setup. Since that time the data has been acquired. This post describes the results.DataData is registered by me in 2014 and 2015. 2014 has standard Diesel, while 2015 has premium. Both are fr...

Read more »

Unemployment of Europe in 2014 by NUTS 2 region

April 25, 2015
By
Unemployment of Europe in 2014 by NUTS 2 region

During the Christmas break I worked on some code to show unemployment by NUTS 2 region. At that point no 2014 data was available. When I noticed the 214 was available I dug up the code and plotted again.Data and CodeAs written, the code was made beginn...

Read more »

PK analysis: Theoph again

April 19, 2015
By
PK analysis: Theoph again

This week I wanted to repeat the Theoph PK analysis of two weeks ago in Stan. It also suddenly dawned on me. For a non-linear model in classical statistics we think it normal to provide good initializations. In contrast, for those MCMC samples I rememb...

Read more »

Cefamandole: PK after IV with six subjects in JAGS

April 12, 2015
By
Cefamandole: PK after IV with six subjects in JAGS

After last week's post on Theoph I noticed the MEMSS library contained more PK data sets. The Cefamandole data is an IV data set with six subjects. It is somewhat challenging, since there seem to be several elimination rates.DataData are displayed...

Read more »

Hierarchical Two Compartimental PK Model

April 5, 2015
By

In this post I am running the Theoph dataset from MEMSS (Data sets and sample analyses from Pinheiro and Bates, "Mixed-effects Models in S and S-PLUS" (Springer, 2000)) in a JAGS model. To quote the MEMSS manual:'Boeckmann, Sheiner and Beal (1994...

Read more »

Space Launch Sites over Time

March 29, 2015
By
Space Launch Sites over Time

Continuing from last weeks post, I am now looking at space launch sites.DataData are from the main table. In addition, this sites table was manually browsed for interpretation of abbreviations.List of most important sitesJust by running counts the most...

Read more »

Launch into space

March 22, 2015
By
Launch into space

I saw a link to a list with all rocket launches into space the other day. This post contains some plots concerning day of launch made from that.DataData is a fixed format file with eleven columns. Reading fixed format is not very difficult, however, it...

Read more »

Medicines under evaluation

March 15, 2015
By

While browsing through the internet I ran into the medicines under evaluation page of the European Medicines Agency. There was a .pdf for each month and I thought it would be interesting to look if I could analyze those data. Each .pdf contains various...

Read more »