Bertrand’s paradox

Buffon versus Bertrand in R

April 7, 2011 | 0 Comments

Following my earlier post on Buffon’s needle and Bertrand’s paradox, above are four outcomes corresponding to four different generations (among many) of the needle locations. The upper right-hand side makes a difference in the number of hits (out of 1000). The R code corresponding to this generation was made ... [Read more...]

When Buffon meets Bertrand

April 6, 2011 | 0 Comments

When Peter Diggle gave his “short history” of spatial statistics this morning (I typed this in the taxi from Charles de Gaulle airport, after waiting one hour for my bag!), he started with a nice slide about Buffon’s needle (and Buffon’s portrait), since Julian Besag was often prone ... [Read more...]

Bertand’s paradox [R details]

March 19, 2011 | 0 Comments

Some may have had reservations about the “randomness” of the straws I plotted to illustrate Bertrand’s paradox. As they were all going North-West/South-East. I had actually made an inversion between cbind and rbind in the R code, which explained for this non-random orientation. Above is the corrected version, ...
[Read more...]

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