Multidimensional-arrays can be described as "arrays of arrays". Multidimensional-arrays are often used to put values in a table format (e.g. rows and columns).
0
votes
1answer
32 views
Mapping multidimensional array in rails to an array
I have a list of beers that a user has in their cellar through cellared_beers so that a user has many beers through cellared_beers and vice versa. Each cellared_beer has extra data like year and size ...
0
votes
2answers
17 views
Creating a multidimensional dictionary in C# for Windows Phone 7.8
I need to store daily statistics in the isolated storage of Windpws Phone which leads me to believe that a multidimensional dictionary would be the most useful but I'm having trouble wrapping my head ...
1
vote
4answers
65 views
How to create a C++ bool 2D array with size 40,000?
I want to make a bool matrix named connectionsOf with size of up to 40 000. Here is my code:
int index = 40000;
bool connectionsOf[index][index];
However, when I run it on a file with 37 000 ...
1
vote
1answer
27 views
Blitz++: Filling an array with random numbers
I am trying to compare the performance of Blitz++ / Armadillo / Eigen and my own library.
I am currently doing the following using Blitz++:
...
Array<T, 1> s(samples);
Uniform<T> rand;
...
0
votes
2answers
52 views
What's the error in my foreach loop?
Following is my multidimensional array named $prev_map_data:
Array
(
[0] => Array
(
[class_id] => 2
[class_name] => II
[class_checked] => 1
...
1
vote
2answers
45 views
JavaScript - Compare two multidimensional arrays
I have two multidimensional arrays:
first is something like (['one','one','three'],['four','five',five'],['one','one','one'])
second is like this ...
0
votes
7answers
54 views
How to create Dynamic Two Dimensional Array [JAVA]
I am new to java and I want to create a 2-dimensional array in which the rows are static but the columns are dynamic.
double [][] lastSecArray = new double [2][41];
int lastValue = -1;
public foo ...
0
votes
2answers
39 views
What's the error in my foreach loop over multidimensional array?
Following is my multidimensional array named $prev_map_data:
Array
(
[0] => Array
(
[class_id] => 2
[class_name] => II
[class_checked] => 1
...
2
votes
2answers
25 views
How to access the values from inner key of associative array in PHP?
Following is may multidimensional array named $form_data:
Array
(
[form_submitted] => yes
[teacher_id] => 3807f31f8c4357bbb56662047529dcde
[cs_map_ids] => Array
(
...
0
votes
1answer
16 views
Form an array hierarchy from specifically-formatted strings
I'm iterating over a folder and formatting its contents in a certain way.
I've to form an array from this set of strings:
home--lists--country--create_a_country.jpg
...
0
votes
3answers
34 views
How to change the keys of multidimensional array in PHP?
My multidimensional array named $cs_map_data is as follows :
Array
(
[2] => Array
(
[class_id] => 2
[class_name] => II
[class_checked] => 0
...
0
votes
0answers
26 views
Treating a 3D array like a list, adding entries at given positions
I have a block of code that is designed to decode MIDI files into a 3D array.
The first dimension (size 3) holds voice data in slot 0, note data in slot 1, and volume data in slot 2.
The second ...
1
vote
1answer
43 views
Selecting some dimensions from a multi-dimensional array
I have a 4-D array, and I need to process all 1-D vectors from this array along a given dimension. This works well:
def myfun(arr4d,selected_dim): # selected_dim can only be 2 or 3
...
0
votes
1answer
30 views
php eliminate blank option lines in for loop echo [closed]
I have a strange thing happening and I don't know why. I have a multidimensional array that looks like this:
Array ( [0] => Array (
[title] => I'm a title
[desc] ...
4
votes
2answers
60 views
MySQL tables or PHP explode for business hours
I need to store business hours for 200+ unique businesses (and growing). Each business has varying hours and some are closed for lunch. In addition, a business might open at 8am one day and 9am on ...
0
votes
3answers
46 views
jQuery: function to check if array is multidimentional
I just wanted to know if anyone knew of a simple function to check if a given array is multidimensional and, if possible, also see how many dimensions it has.
Here is a sample array:
...
0
votes
1answer
29 views
How to access a key from multidimensional array in smarty?
I've got the following multidimensional array named $cs_map_data in PHP file and I've assigned it to the smarty template:
Array
(
[2] => Array
(
[class_id] => 2
...
0
votes
3answers
53 views
json_encode() on a multidimensional array - with string keys
I am creating an very large multidimensional array using PHP. Each object contains Name, ID, ParentID and Children. Children is an array of more objects in the same format.
It is critical I name the ...
-6
votes
1answer
32 views
fetch multi level array in php [closed]
I am stucked in fetching cvname variable in these complicated array.
Array
(
[0] => Page Object
(
[blocksAliasedFromMasterCollection:protected] =>
[cID] ...
0
votes
3answers
32 views
extract name from mulitple levels multidimensional array
I have multidimensional array. It can be extented upto N- levels. I want to collect only name. Name from child to Parent. For example I need output like this
name => ...
1
vote
6answers
45 views
Sort & shuffle multi dimentional array
Im working on gaming project. Which needs sort & shuffle multidimentional array. First i need to sort based on bid. If multiple bids are same i need to sort based on priority. If bid & ...
0
votes
0answers
18 views
Protobuf-net Jagged/multidim arrays, surrogate, wrapper etc one more time
I have found many similar questions here on the stackoverflow. But this one becomes really point of my interest :
How do you serialize/deserialize jagged/nested arrays with protobuf-net?
From Marc`s ...
-1
votes
3answers
29 views
How to insert a new key-value pair in an associative array in PHP? [closed]
I've an associative array named $classes_data as follows:
Array
(
[2] => Array
(
[class_id] => 2
[class_name] => II
[subjects] => Array
...
-1
votes
2answers
59 views
How to access elements in double pointer style matrix
double **matrix = NULL;
matrix = (double **)malloc(sizeof(double *) * N); // N is the size of the square matrix
for(int i=0; i<N; i++)
{
matrix[i] = (double *)malloc(sizeof(double)*N);
}
// ...
0
votes
1answer
27 views
multidimensional array sum and sorting
$inventory = array(
array("fruit"=>"orange", "price"=>3),
array("fruit"=>"kiwi", "price"=>2),
array("fruit"=>"apple", "price"=>3),
array("fruit"=>"apple", ...
2
votes
5answers
67 views
Iterating through many arrays in C
I have a header file that has many arrays. Each array pair (i.e. x0, y0) are the same length, but different pairs have different lengths.
numPaths[] = 4;
pathLengths[] = {12, 11, 13, 10};
int x0[] ...
0
votes
2answers
31 views
Accessing Object within Array
I have the following output:
Array (
[0] => stdClass Object (
[id] => 20
[news_title] => Startup finance docs in GitHub
[news_url] => ...
2
votes
2answers
47 views
reading from file and pass to a two dimensional array in C
I want to read a text file and put it's data into a 2 dimensional array. This code works for a small text file like 0 1 1 1 0 1 1 0 1 1 1 1 but gives segmentation fault for a big text file and 648x512 ...
2
votes
6answers
75 views
Python: Find number of occurrences of given array within two-dimensional array
How best to find the number of occurrences of a given array within a set of arrays (two-dimensional array) in python (with numpy)?
This is (simplified) what I need expressed in python code:
patterns ...
1
vote
4answers
45 views
Best way to slice multidimensional array on the basis of keys in PHP?
I have an result array like this:-
$array = array(
'key1' => array('...'),
'key2' => array('...'),
'key3' => array('...'),
...
1
vote
2answers
37 views
php foreach with multidimensional array do I need to use a key?
I have the following multidimensional array called $responses and it looks like this when I do a print_r
My foreach loop looks like this but it's not working:
foreach ($responses as $response) {
...
5
votes
3answers
118 views
Creating a multi-dimensional array using a for loop
There are many solved multi-dimensional array posts, but I am having difficulties trying to create one through a for loop.
This is the code snippet of code that I am trying to do.
//Get a list of ...
0
votes
3answers
50 views
sort array on clothing sizes (multidimensional array)
My array looks like this:
Array
(
[0] => Array
(
[id] => 613
[kleur] => royalblauw/wit
[maat] => maat XL
[voorraad] => 100
...
0
votes
3answers
53 views
Can't add variables to my array
I keep getting this weird issues when I'm constructing my Ulam (Prime) Spiral. What I am doing in SpiralMaker() is using a 4 step method to create the spiral. As long as the location is less than the ...
0
votes
2answers
35 views
C++ multidimensional array and pointers to table of pointers
Here is the thing.
I can completely understand a concept of a multidimensional array (let's consider 2D for a while) made by pointer to array to pointers and so on...
We do something like this:
// ...
0
votes
2answers
19 views
reading from text file to two dimensional array
I try to read a text file and pass all integers to a 2 dimensional array one by one. But when i print what I tried to pass, I get weird outputs. What could be the problem?
For example if the text is:
...
1
vote
3answers
29 views
Pushing into a 2 dimensional PHP array
Friends,
I am creating a drupal form (its my second one yay!) and I am pulling from the database information about Coursework. a very simple coursework_id and a coursework_name.
Now the usual format ...
3
votes
2answers
38 views
Comparison of methods appending arrays in a foreach loop
I've set up an array of associative arrays (with dummy data for testing) like this:
// To hold dropdown filter options
$results['filters'] = array('Client' => array( array('a' => '1') ),
...
-1
votes
2answers
54 views
Multidimensional array of char pointer
Good day to everyone,
there's some kind of big deal that I cannot figure out.
I create a multidimensional array of pointers:
char *listA[5000][2];
In particular condition, I want that specific ...
-1
votes
0answers
24 views
Export a multidimensional array to CSV in javascript
I am trying to export a large array that looks something like this:
exportArray = [Array[3], Array[3], Array[3], Array[3], Array[3], Array[3], Array[3],
Array[3], Array[3], Array[3], ...
0
votes
3answers
108 views
c style string and dynamic allocation in c++
I must implement a bunch of methods that allocates, modify and free a 2D array of c-style string. I cannot use string nor vectors nor any stl container.
getNewMat :
char*** getNewMat(int w, int h){
...
3
votes
1answer
82 views
How to pass two dimensional array to a function in F#?
I am trying to create a function in F# that takes as input a two dimensional array of integers (9 by 9), and prints its content afterwards. The following code shows what I have done :
let printMatrix ...
0
votes
2answers
17 views
compare two multidimensional arrays of object and set new property true/false pending match on larger set
I Have an array of objects example:
Larger Set:
Array(
[0] stdClass Object(
[ID] => 1,
[name] => monkey,
[sub] => ...
0
votes
1answer
35 views
dynamic 2d char array allocation not working correctly
I am trying to make a 2d char array of dynamic size. Whenever I allocate the memory, the inner array always ends up being the same size as the outer array.
char **memory;
int outer = 1000;
int inner ...
1
vote
2answers
28 views
append new data to multidimensional array
please help me out. I want to append new data to a multidimensional array but structure it the same way the original was structured. Here's what I have right now:
<?php
session_start();
$ses = ...
2
votes
4answers
72 views
ReDim Preserve to a Multi-Dimensional Array in Visual Basic 6
I'm using VB6 and I need to do a ReDim Preserve to a Multi-Dimensional Array:
Dim n, m As Integer
n = 1
m = 0
Dim arrCity() As String
ReDim arrCity(n, m)
n = n + 1
m = m + ...
0
votes
2answers
33 views
C++ Passing Polymorphic Pointer of Pointers to Function
In trying to shorted my code for readability, I wound up changing too much and making mistakes. This is still condensed but taken straight from my code.
My problem is that I have a class called ...
0
votes
1answer
16 views
google checkout - how can i extract info from array
I've recently been having issues with google checkout - i believe the customer ip address is no longer being returned in the response.
However, i'm not sure how to view all parts of the array. How ...
0
votes
2answers
28 views
Grouping counted values of Multidemsional arrays
I am attempting to not only count the amount of times a certain value appears in an array, but also limit the output to only even results.
$quotes = array(
array(
'quote' => 1,
...
1
vote
1answer
25 views
Perl: increment 2d array cell?
I have a set of numerical data for which is important to me to know what pairs of numbers occured together, and how many times. Each set of data contain 7 numbers betwen 1 and 20. There are several ...
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