Flattening refers to either reducing a multi-dimensional array to a single dimension or to reducing a class and class methods to handle based function calls.
Questions tagged [flatten]
1554 questions
0
votes
1 answer
Flatten array of structs into several arrays in C++
Source code to understand the situation:
struct s {
int i;
float f
};
const int cnt = 10;
s *source = new s[cnt];
/*... fill source ...*/
int *dest_i = new int[cnt];
float *dest_f = new float[cnt];
for (int x = 0; x < cnt; x++) {
…
Yarg
- 5,586
- 2
- 17
- 22
0
votes
1 answer
Piglatin limit and flatten produces wrong results
B = GROUP A BY state;
C = FOREACH B {
DA = ORDER A BY population DESC;
DB = LIMIT DA 5;
GENERATE FLATTEN(group), FLATTEN(DB.name), FLATTEN(DB.population);
}
The problem is…
user1855165
- 289
- 1
- 8
- 22
0
votes
1 answer
How to flatten the entire package hierarchy?
If I want to flatten all my package hierarchy, how can I proceed and what are the gotchas?
Note that this question is not about why I want to do this, but how. Valid reasons, for example, would include (but would not be limited to) several of the…
Cedric Martin
- 5,945
- 4
- 34
- 66
0
votes
1 answer
Flattening Images in Iphone SDK
I am trying to save more then 1 image with a background image into a single image and then saving it out. I found out how to flatten the images, but the images I added on top of the background are not appearing in the correct position when…
CodeMonkey
0
votes
2 answers
What does it mean to flatten an iterator?
I would like to know what it means to flatten e.g. flatten an iterator of iterators. Can you tell me? Are there any C/Java/Python idioms for it?
Niklas Rosencrantz
- 25,640
- 75
- 229
- 424
0
votes
2 answers
Push elements from two arrays in an alternating fashion to form a new flat array
I need a function that can intersect 2 arrays for example:
$Array1 = array(1,2,3);
$Array2 = array(5,6);
and results in:
array(1,5,2,6,3);
What I have so far is this
Master345
- 2,250
- 11
- 38
- 50
0
votes
2 answers
how to flatten/penetrate an arbitrarily structured nested list in Python?
Possible Duplicate:
Flatten (an irregular) list of lists in Python
for instance, from:
[[1,2,3],'a',[[4],[5,6],7]]
we want to flatten/penetrate the structure and get all the elements at bottom listed in a line:
[1,2,3,'a',4,5,6,7]
Matt
- 741
- 1
- 6
- 17
0
votes
1 answer
Common Lisp - flatting a list that may contain symbols
This is #7 of of 99 Lisp problems: transform a list, possibly holding lists as elements into a `flat' list by replacing each list with its elements (recursively). I have tried several solutions, e.g from #2680864 or from here. They all work, but I…
Antonio Bonifati 'Farmboy'
- 727
- 1
- 5
- 15
0
votes
1 answer
Duplicate items in collection by field flattening
I have a collection:
[ A { 'a' => '1', 'b' => ['1', '2']}
B { 'a' => '2', 'b' => ['1','2','3']} ]
I'm searching for a function to 'duplicate' items in this collection to make next result:
[ A1 { 'a' => '1', 'b' => '1'}
A2 { 'a' => '1', 'b' =>…
Dima
- 6,721
- 4
- 24
- 43
-1
votes
0 answers
flatten nested object with model type
I need to flatten a nested object.
I've got my missingData like this:
{
a:2,
b: {
c:3
}
}
And I need ...
{
a:2,
b:3
}
but my model is like this:
request {
a: string,
b: user,
c: string
}
user {
id: string
}
I tried this:
let…
John
- 1
- 1
-1
votes
2 answers
Calling the main function inside a callback function in javascript
I am struggling to understand the following code:
let myArray = ["J", "a", "v", ["a", "scrip"], "t"];
const flatten = (myArray) => {
return myArray.reduce((flat, arry) => {
return Array.isArray(arry) ? flat.concat(flatten(arry)) :…
Ameen Shamsan
- 47
- 4
-1
votes
2 answers
Get flatten 2d array from a multidimensional array with parent-child relationships and inconsistent scalar data
I have a multidimensional array with parent-child relationships and I want to flatten its data into a 2d array of the scalar data from each level using recursion.
[
'children' => [
[
'id' => 123,
'title' =>…
Bhumi Shah
- 9,323
- 7
- 63
- 104
-1
votes
3 answers
How does flatten behave diffrently with Vec> and Vec> or Vec> in rust
The official docs of iter::flatten states :
An iterator that flattens one level of nesting in an iterator of things that can be turned into iterators.
But for this code:
if let Ok(entries) = fs::read_dir("/path/to/dir") {
for entry in…
atamakahere
- 3
- 3
-1
votes
2 answers
How do i store keys while flattening?
I have a nested JSON object which is of the format
[{
firstLevelKey1 : [{
dataType : 'String'
},{
value : 'someString'
},{
someKey : 'someValue'
}]
},{
firstLevelKey2:[{
dataType : 'Object'
},{
value : [{
…
Manoj HT
- 54
- 7
-1
votes
3 answers
Flatten a 2d array while preserving numeric associative row keys
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 => '2018'],
[2019 => '2019'],
[2020 =>…
K1m4
- 5
- 2