flatten Questions
12
Solved
Maybe it's stupid question but I cannot realize is that possible to flatten multidimensional array without recursion?
I have one solution written by me with recursion:
function transform (arr) {
...
Tubule asked 4/12, 2014 at 20:26
2
Solved
What is the difference between the use of LATERAL FLATTEN(...) and TABLE(FLATTEN(...)) in Snowflake? I checked the documentation on FLATTEN, LATERAL and TABLE and cannot make heads or tails of a fu...
Sergeant asked 2/12, 2020 at 23:27
5
Solved
I am attempting to employ C++17 fold expressions and the C++14 indices trick to flatten an arbitrary input consisting of tuples and non-tuples.
The expected result should at least conform to these...
Alaynaalayne asked 28/2, 2019 at 17:41
6
Solved
I am using the following foreach loop to populate a new array with filtered data.
foreach ($aMbs as $aMemb) {
$ignoreArray = array(1, 3);
if (!in_array($aMemb['ID'], $ignoreArray)) {
$aMembersh...
Gooey asked 30/9, 2010 at 18:57
3
Solved
I have the following array :
$array = [
'2' => ['3' => ['56' => '2'], '6' => ['48' => '2']],
'4' => ['4' => ['433' => '2', '140' => '2'], '8' => ['421' => '2', '...
33
Solved
I have a list of lists like
[
[1, 2, 3],
[4, 5, 6],
[7],
[8, 9]
]
How can I flatten it to get [1, 2, 3, 4, 5, 6, 7, 8, 9]?
If your list of lists comes from a nested list comprehension, the pr...
Rattlesnake asked 4/6, 2009 at 20:30
8
Solved
I want to unflatten an object like this...
var obj2 = {
"firstName": "John",
"lastName": "Green",
"car.make": "Honda",
"car.model": "Civic",
"car.revisions.0.miles": 10150,
"car.revisions.0....
Certie asked 9/3, 2017 at 12:6
53
Solved
Yes, I know this subject has been covered before:
Python idiom to chain (flatten) an infinite iterable of finite iterables?
Flattening a shallow list in Python
Comprehension for flattening a seque...
Dentation asked 28/1, 2010 at 22:15
15
Solved
I am trying to flatten 3D array into 1D array for "chunk" system in my game. It's a 3D-block game and basically I want the chunk system to be almost identical to Minecraft's system (however, this i...
15
Solved
I have an array which contains several arrays, each containing several objects, similar to this.
[[object1, object2],[object1],[object1,object2,object3]]
Here is a screenhot of the object logged...
Buitenzorg asked 20/3, 2015 at 3:7
3
Solved
I'm working with a third-party library that provides tree-based data structures that I have to use "as is". The API returns Result<T, Error>. I have to make some sequential calls an...
Athwart asked 25/11, 2019 at 9:10
4
Solved
Search for value in 3rd level of a multidimensional array and return flattened, qualifying data sets
I am trying to search for qualifying entries in a multidimensional array and return one or more data sets as flattened, associative subarrays.
Sample input:
[
[
'name' => 'Dick Jansen',
'matc...
Godolphin asked 20/12, 2012 at 21:25
4
Solved
I have data like sampledata reproduced using the code below:
###producing sample data
sampledatain1 <- data.frame(in_1=c(1,2,3,4,5),in_2=c("A","B","C","D"...
Hypochondriac asked 15/8, 2023 at 7:9
87
Solved
I have a JavaScript array like:
[["$6"], ["$12"], ["$25"], ["$25"], ["$18"], ["$22"], ["$10"]]
How would I go about merging the separate inner arrays into one like:
["$6", "$12", "$25", ...]
Alderson asked 2/6, 2012 at 18:53
7
Solved
I have the following element of a list, and the list is 100 elements long.
[(50, (2.7387451803816479e-13, 219))]
How do I convert each element to look like this?
[(50, 2.7387451803816479e-13, ...
2
Solved
Before I start: YES, this is a homework from college. Before I get told that I'm lazy and evil: this part of the homework was to convert two functions we already had, this one is the 6th.
(define (...
Fossilize asked 21/3, 2011 at 8:50
8
Solved
I have been flattening domain objects into DTOs as shown in the example below:
public class Root
{
public string AParentProperty { get; set; }
public Nested TheNestedClass { get; set; }
}
publi...
Bid asked 4/7, 2011 at 21:32
3
Solved
What is the correct way to flatten a struct of two arrays in BigQuery? I have a dataset like the one pictured here (the struct.destination and struct.visitors arrays are ordered - i.e. the visitor ...
Sarina asked 18/11, 2019 at 18:29
3
Solved
I am dealing with a complex nested dictionary and list data structure. I need to flatten the data and bring all nested items to level 0. See below example for more clarity :
{a:1,b:2,c:{c1:[{c11:1...
Keir asked 29/8, 2018 at 15:51
1
Solved
What functions f :: [a] -> [a] satisfy the law:
f . concat = concat . f . map f
I can think of id, reverse, and const [] - are there others?
6
Solved
I'd like to flatten a nested json object, e.g. {"a":{"b":1}} to {"a.b":1} in order to digest it in solr.
I have 11 TB of json files which are both nested and contains dots in field names, meaning ...
Jovita asked 31/5, 2016 at 8:34
8
Solved
I have a dataframe with 2 index levels:
value
Trial measurement
1 0 13
1 3
2 4
2 0 NaN
1 12
3 0 34
Which I want to turn into this:
Trial measurement value
1 0 13
1 1 3
1 2 4
2 0 Na...
Chicken asked 21/11, 2013 at 0:37
3
Solved
I need to flatten a 2d array to become a 1d array without losing my numeric 2nd level keys in the process.
Sample data:
[
[2015 => '2015'],
[2016 => '2016'],
[2017 => '2017'],
[2018 =&...
Tortoni asked 12/1, 2023 at 13:11
31
Solved
Is it possible, in PHP, to flatten a (bi/multi)dimensional array without using recursion or references?
I'm only interested in the values so the keys can be ignored, I'm thinking in the lines of a...
Groundmass asked 23/8, 2009 at 23:47
2
Maybe I'm missing something obvious but trying to flatten a list of named lists of named lists in R (may even be more nested) into eventually one flat list. purrr and rlist seem to have tools for t...
Hypothyroidism asked 13/3, 2018 at 9:22
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