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Today, at lunch, Matthieu told us a nice story (or call it a paradox if you like) about the probability to find you seat empty when you get in a place.
a plane full of nuns
Assume that you are in the line to get in the airplane, you are the ...

Friday in the course of statistics, we started the section on confidence interval, and like
always, I got a bit confused with the degrees of freedom of the Student
(should it be or ?) and which empirical variance (should we
consider the one wher...

Valentine's day is a nice opportunity to post on hot and sexy topics... Well,
it's also an important day that I should not miss, probably as much as Saint Patrick's my
wife's birthday.
And as I mentioned last week (here), it is difficult to get the...

Following my post on citations in academic journals, I wanted to go one step further in the understanding of the dynamic of citations. So here, the dataset looks like that: for each article, we have the name of the
journal, the year of publicatio...

We have seen yesterday that finding an optimal strategy to publish is
not that simple. And actually, it can be even more difficult in the
case the journal rejects the paper (not because it is not correct, but
because "it
does not fit" with the stan...

I am always surprised to see many people on Twitter tweeting about #opendata,
e.g. @data4all, @usdatagov, @datapublicatwit, @ProPublica or
@open3 among so many others...
Initially, I was also very enthousiastic, but I have to admit that open data a...

Last week, during the workshop on Statistical Methods for
Meteorology and
Climate Change (here),
I discovered how powerful bayesian techniques could be, and that there
were more and more bayesian statisticians. So, if I was to fully
understand
app...

Recently, I received comments (here and on Twitter) about my previous graphs on the
temperature in Paris. I mentioned in a comment (there) that studying
extremas (and more generally quantiles
or interquantile evolution) is not the same as studying ...

In the paper on the heat wave in Paris (mentioned here)
I discussed changes in the distribution of temperature (and
autocorrelation of the time series).
During the workshop on Statistical Methods for Meteorology and
Climate Change today (here) I
o...

Following the idea posted on James Cheshire's blog (here), I have tried to play a little bit with R and Google. And it works ! Consider for instance life expectancy at birth (that can be found - and downloaded - here). Using the following code, it ...