Questions tagged [associations]

Questions on the associative data-structure introduced in Mathematica version 10.

608 questions

7 votes

3 answers

431 views

How to prevent Dataset from converting Pi to decimal point?

This might be another known issue in Dataset but not able to find workaround. Dataset converts $\pi$ to decimal point. But keeps $\{\pi\}$ as exact. Is there a way to tell Dataset to keep $\pi$ as ...

Nasser

156k

asked Oct 18 at 17:17

2 votes

0 answers

53 views

default key for associations [closed]

Suppose that I have an association like: a=<|1->2,2->3,3->5|>. I want to modify a such that for every key not in {1,2,3}, for example 4, it returns -...

Giovanni Russo

asked Oct 8 at 9:30

6 votes

2 answers

230 views

How can I force reevaluation of Association values? [duplicate]

After switching from 13.2 to 14.3, I noticed that some behavior of Association has changed: ...

Acus

3,877

asked Aug 29 at 14:24

1 vote

0 answers

81 views

Searchable non-atomic Associations

I really like Associations in most regards. But they can be really annoying to work with when you need to search, or act on, their value contents. I understand why ...

Kvothe

4,931

asked Jul 15 at 14:05

6 votes

3 answers

201 views

Associations in replacement rules variable

I have a large number of replacement rules where the right hand side (RHS) is always the same. To avoid repetition, I separated the two sides to add the same RHS to all of them. This is a minimal ...

Gustavo Delfino

8,996

asked May 1 at 18:07

1 vote

0 answers

149 views

Converting associations [closed]

I have a huge text file that has these associactions in it(one on each line): {12, 14, 24, 25, 29}->{13, 22, 25, 31, 36} I need to convert it to this form: <...