The flavor choose selects one of the entries in a non-empty collection with equal probability.

This flavor can be used as an argument to RandomTools[Generate] or as part of a structured flavor.

The flavor choose cannot select an element from a non-array table that has an indexing function.

$\mathrm{with}\left(\mathrm{RandomTools}\right)\:$

$\mathrm{Generate}\left(\mathrm{choose}\left(\left\{a\,b\,c\,d\,e\,f\right\}\right)\right)$

$e$

$\mathrm{Generate}\left(\mathrm{choose}\left(⟨A\,B\,C\,\mathrm{D}⟩\right)\right)$

$C$

$\mathrm{Generate}\left(\mathrm{choose}\left(\mathrm{Array}\left(10..12\,15..17\,13..15\,\left(i\,j\,k\right)\mapsto \left[i\,j\,k\right]\right)\right)\right)$

$\left[12\,16\,13\right]$

$\mathrm{Generate}\left(\mathrm{choose}\left(\mathrm{table}\left(\left[a=b\,c=d\right]\right)\right)\right)$

$b$

$\mathrm{seq}\left(\mathrm{Generate}\left(\mathrm{choose}\left(⟨⟨1\,2⟩|⟨3\,4⟩⟩\right)\right)\,i=1..10\right)$

$4,3,4,1,2,2,2,4,4,1$

$\mathrm{Matrix}\left(3\,3\,\mathrm{Generate}\left(\mathrm{choose}\left(\left\{0\,1\right\}\right)\,\mathrm{makeproc}=\mathrm{true}\right)\right)$

$\left[\begin{array}{ccc}0& 1& 0\\ 1& 0& 1\\ 1& 0& 0\end{array}\right]$