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Insert or Joint a element in a table

Hi, I have a this data table

a = { { {a,b},{c,d},{e,f} } , { {1,2},{3,4},{5,6} } }

and

t = {x , z }

I would obtain this

b = { { {a,b,x},{c,d,x},{e,f,x} } , { {1,2,z},{3,4,z},{5,6,z} } }

I have tried with Insert and joint but unsucesfully. Any suggestions please? Thank you

Margherita
POSTED BY: margherita ferrucci
7 Replies
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Thank you a lot !
POSTED BY: margherita ferrucci
Kuba Podkalicki
Kuba Podkalicki
Posted 11 years ago
POSTED BY: Kuba Podkalicki

Ooops, that is a tricky one!

aa = {{{a, b}, {c, d}, {e, f}}, {{1, 2}, {3, 4}, {5, 6}}};
t = {x, z};

Flatten /@ # & /@ Thread /@ Thread[{aa, t}]

... well, I prefer Davids solution!

Henrik
POSTED BY: Henrik Schachner

Flatten always scares me with regards to scalability, thus I prefer

Append @@@ # & /@ Thread /@ Transpose[{aa, t}]
POSTED BY: David Gathercole
David Keith
David Keith
Posted 11 years ago
POSTED BY: David Keith
Bill Simpson
Bill Simpson
Posted 11 years ago

delete
POSTED BY: Bill Simpson
Bill Simpson
Bill Simpson
Posted 11 years ago

A couple of hints that should be enough to send you in the right direction.

Side note: giving the same name to your list a as some of your elements inside that list is going to cause you problems. Why?

Your first challenge is to associate each element of t with the right list of lists in a. Look up MapThread and contemplate.

Your second challenge is to then use that association to accomplish your goal. Look up Map and contemplate creating a "helper function" that might correctly use that.

That should be enough for you to be able to figure this out on your own now and without anyone giving away an answer.
POSTED BY: Bill Simpson
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