Think of it in layers, like this---layer 1:

{w :weigths, u :uni-probs, b :bi-probs, t :tri-probs}

Then, instead of an atomic w, recursively substitute another destructuring 
form, which will destructure the value of that w (which is also a map). 
This form is {:keys [w1 w2 w3]}. That gives you complete layer 2:

{{:keys [w1 w2 w3]} :weigths, u :uni-probs, b :bi-probs, t :tri-probs}

On Tuesday, March 19, 2013 8:58:43 PM UTC+1, Jim foo.bar wrote:
>
> On 19/03/13 19:49, Marko Topolnik wrote: 
> > {{:keys [w1 w2 w3]} :weights} 
>
> awsome!...the full thing actually is {{:keys [w1 w2 w3]} :weights u 
> :uni-probs b :bi-probs t :tri-probs} 
>
> I always get confused when the order changes like that...thanks for 
> unblocking me Marko :) 
>
> Jim 
>
>
>

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