I usually find my students appreciate it when I teach them something that has
utility in multiple contexts. Teaching them how to express an idea in R code is
valuable. And as far as structuring thought and expressing ideas go, it's quite
equivalent to symbolic equations. Both are just notation.
$ 0.02
Cheers,
B.
On Nov 20, 2014, at 2:35 PM, Scott Rifkin <sarif...@ucsd.edu> wrote:
> Ista,
>
> On the one hand I'd like it to be as flexible as possible so the students
> could really come up with whatever they like. On the other hand, restricting
> their choices probably would make it easier to do the backend. The goal
> would be to get them to realize that the apparatus of hypothesis testing
> (when done via simulation/randomization techniques) doesn't depend on what
> the statistic is. The flow of steps is the same whether the statistic is a
> mean, variance, or their own kooky thing. Obviously this isn't the end of the
> story - what the statistic is actually describing is also a crucial component
> to interpreting the results of a hypothesis test, but I think it teaches an
> important pedagogical point about where statistics come from and that if they
> find themselves in a situation in the future where they need to make up their
> own, then that is perfectly okay.
>
> So they could make up ones like: arctan( (max({x})^2)/ (min({x})^2) )-3),
> max({x})-min({x}), sum from i to n of (x_i - 25th%ile({x}) )^3) [that might
> be tricky to write in a standard equation editor]
> none of these is hard to write in R, but translating from an equation editor
> might be.
>
> Perhaps the best solution is (as Alan suggests below) to write a Shiny
> function builder myself so that I can control the whole process and make sure
> that they can't enter anything that would break the backend. Or to have them
> learn the rudiments of writing equations in R so that it bypasses the whole
> process.
>
> Thanks,
> Scott
>
>
>
> On 11/19/14 1:52 PM, Ista Zahn wrote:
>> Hi Scott,
>>
>> Can you give a couple of examples of the equations you have in mind
>> along with how those should be translated to R?
>>
>> Thanks,
>> Ista
>>
>
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