nshepperd comments on A Fervent Defense of Frequentist Statistics - Less Wrong

43 Post author: jsteinhardt 18 February 2014 08:08PM

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Comment author: labachevskij 19 February 2014 12:44:49PM *  1 point [-]

There are easy to compute bijections from R to [0,1], etc.

This is not true, there are bijections between R and (0,1), but not the closed interval.

Anyway there are more striking examples, for example if you know that A, B, C, D are in a discrete finite set, it restricts yout choices quite a lot.

Comment author: nshepperd 19 February 2014 05:04:50PM 3 points [-]

Did you mean to say continuous bijections? Obviously adding two points wouldn't change the cardinality of an infinite set, but "easy to compute" might change.

Comment author: labachevskij 21 February 2014 09:52:50AM 1 point [-]

You're right, I meant continuous bijections, as the context was a transformation of a probability distribution.