Category "multidimensional-array"

Sort multidimensional array by column value within a column

I have an array in PHP and I need to sort by a nested array inside of the array... Here is my array: Array ( [0] => Array ( [project_

Sum array values of a column within each column of an array with 3 levels

I'm trying to use array_sum() on columns within columns of a multidimensional array. For eg: I have an array that looks like this: $array = [ [['value' =>

How to remove from a multidimensional array all duplicate elements including the original?

I am using php 7.1. I have seen that to eliminate the duplicate elements it is enough with this array_unique($array, SORT_REGULAR); I've also seen this work ar

Group rows by column and sum another column within groups [duplicate]

I have an array looking like: array(480) { [0]=> array(2) { ["tag_id"]=> string(4) "6291" ["az"]=> int(5) } [

Two 2D array's of coordinates, finding if any of the coordinates from the different arrays are within a set distance of one another (python)

I have been trying to figure out how to make it so there is two 2D arrays, each containing a number of arrays that have x and y coordinates for set objects of t

Deleting a column from a multidimensional array in javascript

I have a 2D array: var array = [["a", "b", "c"],["a", "b", "c"],["a", "b", "c"]] I want to delete an entire column of this array (i.e. delete every third ele

Search for array row with specific column value and return another value from qualifying row

I have a multidimensional array that I am trying to search for a specific value (url) and then retrieve an another value in the same row (value). I also need to

2d array index out of range exception

As soon as i enter the while loop the program throws Index out of range exception, without getting rows and columns value. getint is a method to get user input

Insert database rows from columns of data from associative array of indexed arrays

I have an array called $works which looks like this: [ 'type' => [1, 5], 'description' => [2, 6], 'hours' => [3, 7], 'amount' => [4,

finding and replacing elements in a multidimensional list (python)

Similar to this question: finding and replacing elements in a list (python) but with a multi-dimensional array. For example, I want to replace all the N's with

How to change element in array?

Array is 2 dimensional 10x10 gameBoard Code I made for array: int gameBoardLength = gameBoard.length; System.out.print(" "); //two spaces to align t

To find Index of Multidimensional Array in Javascript

I have created a multidimensional array in JavaScript and I want to find the exact index of specific value. That value will be user input. var array = []; var k

Issue with Redim Preserve (2D array)

Yet another topic with multidimensional array and Redim Preserve, I know. I read a lot of them but still can not understand why my code is not working. I kwow

How to solve two dimensional growth grid problem?

I was doing an assessment for job interview. One of the 3 problems that I had to solve in an hour was finding the maximal value in a grid where you traverse it

Transpose and flatten two-dimensional indexed array where rows may not be of equal length

I would like to take an array like this and combine it into 1 single array. array (size=2) 0 => array (size=10) 0 => string '1'

protocol buffers - store an double array, 1D, 2D and 3D

How can be an array of double (1D) stored using protocol buffer? What about multi-dimensional (2D or 3D) dense arrays?

How to construct a ndarray from a numpy array? python

I can't seem to convert it into an ndarray in numpy, i've read http://docs.scipy.org/doc/numpy/reference/generated/numpy.ndarray.html but it didn't show me how

How do I initialize a two-dimensional List statically?

How can I initialize a multidimensional List statically? This works: List<List<Integer>> list = new ArrayList<List<Integer>>(); But

How to extend pyWavelets to work with N-dimensional data?

This may be a question for a different forum, if so please let me know. I noticed that only 14 people follow the wavelet tag. I've here an elegant way of exten

I'm having trouble putting who wins in my game

So everything in my code works so far, but I don't know why the checkWinner function doesn't work. In my Bool checkWinner function, I used bool. When I call th