Archive for Boxing Day

CASSIS [in Vancouver]

Posted in pictures, Running, Statistics, Travel, University life with tags , , , , , , , , , on May 29, 2018 by xi'an

My friend Luke Bornn is running a workshop on Statistics in Sports the day after JSM, in Vancouver. With sessions on American football, basketball, and other sports. Not exactly in the continuation of the long summer of Briton conferences series, unless one considers the “British” in British Columbia!, but definitely worth considering as a boxing day for JSM!

correlation for maximal coupling

Posted in Books, Kids, pictures, R, Statistics, University life with tags , , , , , , on January 3, 2018 by xi'an

An interesting (if vaguely formulated) question on X validated: given two Gaussian variates that are maximally coupled, what is the correlation between these variates? The answer depends on the parameters of both Gaussian, with a correlation of one when both Gaussians are identical. Answering the question by simulation (as I could not figure out the analytical formula on Boxing Day…) led me back to Pierre Jacob’s entry on the topic on Statisfaction, where simulating the maximal coupling stems from the decompositions

p(x)=p(x)∧q(x)+{p(x)-p(x)∧q(x)}  and  q(x)=p(x)∧q(x)+{q(x)-p(x)∧q(x)}

and incidentally to the R function image.plot (from the R library fields) for including the side legend.

2014 in review

Posted in Statistics with tags , , , , on January 2, 2015 by xi'an

The WordPress.com stats helper monkeys prepared a 2014 annual report for the ‘Og…

.. and among the collected statistics for 2014, what I found most amazing are the three accesses from Greenland and the one access from Afghanistan!

Click here to see the complete report. (Assuming you have nothing better to do on Boxing day…)