search for: advantageo

Hello everybody! I have a problem, that might be a quite common one. Often one has some statistics on subpopulations defined by several factors. This is usualy done by tapply resulting in a list. For presentation-tasks, the form of an array might be more advantageos, as ftable in combination with aperm allows for quite nice print. Moreover some html or ps output might be easier to produce. So this is the question: How can i transform a list of the form list $a1 $b1 = x1 $b2 = x2 $a2 $b1 = x3 $b2 = x4 into an multy-way array,...