Dear ‘uncutstone’, Dear Tim,
thank you for your replies - and the lot of work you put in it!
Actually,
{‘x’=>5,‘w’=>4}=>[4]
now it gets weird, this means the 4th position of x is 5 and of w is
4… Why only that result? Seems a little arbitrary, why doesn’t the
result contain:
{‘x’=>1,‘w’=>2}=>[1]?
You’re correct, I’d like to have it that way, actually - I am just too
tired
today even to make up an example correctly - but that doesn’t matter,
if you can rely on friendly people 
And how come
yis left out of the results alltogether?
That is done on purpose - I want to be able specify an Array
of variables which are not fixed here - in this case [‘y’],
in fact, one of the values of any of the variables must change
in my data, but all of the others or some of the others can remain
the same and I must account for that.
I think I can work with your proposals very well now.
Thank you,
Best regards,
Axel