Search Results
| Search type | Search syntax |
|---|---|
| Tags | [tag] |
| Exact | "words here" |
| Author |
user:1234 user:me (yours) |
| Score |
score:3 (3+) score:0 (none) |
| Answers |
answers:3 (3+) answers:0 (none) isaccepted:yes hasaccepted:no inquestion:1234 |
| Views | views:250 |
| Code | code:"if (foo != bar)" |
| Sections |
title:apples body:"apples oranges" |
| URL | url:"*.example.com" |
| Saves | in:saves |
| Status |
closed:yes duplicate:no migrated:no wiki:no |
| Types |
is:question is:answer |
| Exclude |
-[tag] -apples |
| For more details on advanced search visit our help page | |
Results tagged with associations
Search options questions only
not deleted
user 92
Questions on the associative data-structure introduced in Mathematica version 10.
28
votes
5
answers
2k
views
How can a key be renamed in an Association?
replace it by transforming into Normal land and back into Association land:
Association[
ReplaceAll[Normal[assoc], Rule["this_key_is_too_long_to_type", rhs_] :> Rule["c", rhs]]]
But I have found with Associations …
- 7,810
14
votes
4
answers
674
views
How can a field be efficiently added to a Dataset?
Let's use the example Dataset:
dataset = Dataset[{
<|"a" -> 1, "b" -> "x", "c" -> {1}|>,
<|"a" -> 2, "b" -> "y", "c" -> {2, 3}|>,
<|"a" -> 3, "b" -> "z", "c" -> {3}|>,
<|"a" -> 4, "b" -> …
- 7,810
6
votes
1
answer
187
views
How can Map be given access to the keys of a Dataset?
Consider an example Dataset:
icds = Dataset[
Map[
Association[
Thread[Rule[{"brand", "flavor", "parameter", "response"}, #]]] &,
{
{"a", "vanilla", 1, RandomReal[NormalDistribution[] …
- 7,810