Blog Archives

Predicting Titanic deaths on Kaggle II: gbm

July 26, 2015
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Predicting Titanic deaths on Kaggle II: gbm

Following my previous post I have decided to try and use a different method: generalized boosted regression models (gbm). I have read the background in Elements of Statistical Learning and arthur charpentier's nice post on it. This data ...

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Predicting Titanic deaths on Kaggle

July 19, 2015
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Predicting Titanic deaths on Kaggle

Kaggle has a competition to predict who will die on the famous Titanic 'Machine Learning from Disaster''. It is placed as knowledge competition. Just up there to learn. I am late to the party, it has been been for 1 1/2 year, to end by end 2015. It is ...

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More on causes of death in Netherlands over the years

July 5, 2015
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More on causes of death in Netherlands over the years

Last week I had a post 'Deaths in the Netherlands by cause and age'. During creation of that post I made one plot which I had not shown. It shows something odd. There is a vertical striping. Hence mortality varies by year across age.To examine this phe...

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Deaths in the Netherlands by cause and age

June 28, 2015
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Deaths in the Netherlands by cause and age

I downloaded counts of deaths by age, year and mayor cause from the Dutch statistics site. In this post I do some plots to look at causes and changes between the years.Data Data from CBS. I downloaded the data in Dutch, hence the first thing to do...

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SAS PROC MCMC example 12 in R: Change point model

June 21, 2015
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SAS PROC MCMC example 12 in R: Change point model

I restarted at working my way through the PROC MCMC examples. The SAS manual describes this example: Consider the data set from Bacon and Watts (1971), where  is the logarithm of the height of the stagnant surface layer and the covariate...

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Parallel and a new laptop

June 14, 2015
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Parallel and a new laptop

I am thinking about a new laptop. For one thing a 1366*768 resolution just seems to get impractically small. Secondly, faster comutations, more memory.Regarding CPU speed, my current laptop has a lowly Celeron 877. From what I see at my computers activ...

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European debt and interest

June 7, 2015
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European debt and interest

I was told the Eurostat package would be interesting for me.  This is indeed true and now I want to use it to plot some data which are related core of some of the European policies; debt.In these plots I only show individual countries, not aggrega...

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Paper Helicopter Experiment, part III

May 31, 2015
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Paper Helicopter Experiment, part III

As final part of my paper helicopter experiment analysis (part I, part II) I do a reanalysis for one more data set. In 2002 Erik Erhardt and Hantao Mai did an extensive experiment, see The Search for the Optimal Paper Helicopter. They did a number of s...

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Paper Helicopter experiment, part II

May 25, 2015
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Paper Helicopter experiment, part II

Last week I created a JAGS model combining data from two paper helicopter datasets. This week, I will use the model to find the longest flying one.PredictingThe JAGS/RJAGS system has no predict() function that I know of. What I therefore did is adapt t...

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The paper helicopter experiment

May 17, 2015
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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...

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