tagged [multidimensional-array]

How do I 'foreach' through a two-dimensional array?

How do I 'foreach' through a two-dimensional array? I've got a two-dimensional array, And I'd like to `foreach` through it like this, But, I get the error: > Can't convert

7 May at 14:35

Using Linq with 2D array, Select not found

Using Linq with 2D array, Select not found I want to use Linq to query a 2D array but I get an error: > Could not find an implementation of the query pattern for source type 'SimpleGame.ILandscape[]'....

19 Jul at 15:31

Multi-dimensional array vs. One-dimensional

Multi-dimensional array vs. One-dimensional This is basically a restatement of this question: [Java: Multi-dimensional array vs. One-dimensional](https://stackoverflow.com/questions/2512082/java-multi...

How to search in 2D array by LINQ ?[version2]

How to search in 2D array by LINQ ?[version2] I have an array like this: i search in column by statement and return in column like this: ``` string className = "A"; string color = "Black"; for (int i ...

Fastest way to zero out a 2D array in C#

Fastest way to zero out a 2D array in C# I have a 2D array that I want to clear and reset to 0 values. I know how to clear a vector (1D array) using `Array.Clear()` but I don't know the best way to cl...

How do I iterate through each element in an n-dimensional matrix in MATLAB?

How do I iterate through each element in an n-dimensional matrix in MATLAB? I have a problem. I need to iterate through every element in an n-dimensional matrix in MATLAB. The problem is, I don't know...

I want to scramble an array in PHP

I want to scramble an array in PHP I want PHP to randomly create a multi-dimensional array by picking a vast amount of items out of predefined lists for n times, but never with 2 times the same. Let m...

14 May at 19:52

Two dimensional array in python

Two dimensional array in python I want to know how to declare a two dimensional array in Python. The first two assignments work fine. But when I try to do, `arr[1].append("bb1")`, I get the following ...

12 Oct at 04:53

How to "flatten" a multi-dimensional array to simple one in PHP?

How to "flatten" a multi-dimensional array to simple one in PHP? It's probably beginner question but I'm going through documentation for longer time already and I can't find any solution. I thought I ...

3 Dec at 03:55

PHP multidimensional array search by value

PHP multidimensional array search by value I have an array where I want to search the `uid` and get the key of the array. ## Examples Assume we have the following 2-dimensional array: ``` $userdb = ar...

22 May at 07:56

How to get a dimension (slice) from a multidimensional array

How to get a dimension (slice) from a multidimensional array I'm trying to figure out how to get a single dimension from a multidimensional array (for the sake of argument, let's say it's 2D), I have ...

PHP: Get key from array?

PHP: Get key from array? I am sure that this is super easy and built-in function in PHP, but I have yet not seen it. Here's what I am doing for the moment: Could I do something like the following inst...

What is the difference between T[,] and T[*,*]?

What is the difference between T[,] and T[*,*]? My Google-Jitsu is failing me. Question is in the title... What is the difference between `T[,]` and `T[*,*]`? I am looking for a 2, 2-1/2 part answer: ...

The best way to print a Java 2D array?

The best way to print a Java 2D array? I was wondering what the best way of printing a 2D array in Java was? I was just wondering if this code is good practice or not? Also any other mistakes I made i...

How to convert list of arrays into a multidimensional array

How to convert list of arrays into a multidimensional array I need to convert the following collection into double[,]: All the arrays in the list have the same length. The simplest approach, `ret.ToAr...

How can I get descriptive statistics of a NumPy array?

How can I get descriptive statistics of a NumPy array? I use the following code to create a numpy-ndarray. The file has 9 columns. I explicitly type each column: Now I would like to get some descripti...

Why is the enumeration value from a multi dimensional array not equal to itself?

Why is the enumeration value from a multi dimensional array not equal to itself? Consider: How can this be explained?

Convert a 1D array to a 2D array in numpy

Convert a 1D array to a 2D array in numpy I want to convert a 1-dimensional array into a 2-dimensional array by specifying the number of columns in the 2D array. Something that would work like this: D...

ReDim Preserve to a multi-dimensional array in VB6

ReDim Preserve to a multi-dimensional array in VB6 I'm using VB6 and I need to do a `ReDim Preserve` to a Multi-Dimensional Array: Whenever I do it as I have written it, I get the following error: > r...

How can I split an array into n parts?

How can I split an array into n parts? I have a list of bytes and I want to split this list into smaller parts. This list has 6 cells. For example, I want to split it into 3 parts containing each 2 by...

How do you rotate a two dimensional array?

How do you rotate a two dimensional array? Inspired by [Raymond Chen's post](https://devblogs.microsoft.com/oldnewthing/20080902-00/?p=21003), say you have a 4x4 two dimensional array, write a functio...

How to initialize multi-dimensional array with different default value

How to initialize multi-dimensional array with different default value I am trying to initialize 2-dimensional array of integer values with -1. When I create a new array, it is automatically filled wi...

Span and two dimensional Arrays

Span and two dimensional Arrays Is it possible to use the new [System.Memory Span struct](https://msdn.microsoft.com/en-us/magazine/mt814808.aspx) with two dimensional arrays of data? ``` double[,] te...

Multidimensional arrays in Java and C#

Multidimensional arrays in Java and C# In C# there are 2 ways to create mutlidimensional arrays. ``` int[,] array1 = new int[32,32]; int[][] array2 = new int[32][]; for(int i=0;i

Does Array.Copy work with multidimensional arrays?

Does Array.Copy work with multidimensional arrays? This code works fine: But I am not having much luck replacing it with Array.Copy. Basically, if the resized array is larg

1 Sep at 02:26

Convert multidimensional array to jagged array in C#

Convert multidimensional array to jagged array in C# I have a C# WCF webservice which is called by two VB 6 project. The target VB project is sending to the client VB project a multidimensional array....

How do I Sort a Multidimensional Array in PHP

How do I Sort a Multidimensional Array in PHP I have CSV data loaded into a multidimensional array. In this way each "row" is a record and each "column" contains the same type of data. I am using the ...

30 Oct at 09:39

PHP foreach loop through multidimensional array

PHP foreach loop through multidimensional array I have an array: ``` $arr_nav = array( array( "id" => "apple", "url" => "apple.html", "name" => "My Apple" ), array( "id" => "orange",...

Reading from Excel (Range into multidimensional Array) C#

Reading from Excel (Range into multidimensional Array) C# How would I read from an Excel sheet and load the marked selection (Area) into an multidimensional array? A column in Excel could itself be a ...

20 Sep at 14:49

Matrix Transpose in Python

Matrix Transpose in Python I am trying to create a matrix transpose function for python but I can't seem to make it work. Say I have and I want my function to come up with So in other words, if I were...

24 Apr at 19:50

Passing a 2D array to a C++ function

Passing a 2D array to a C++ function I have a function which I want to take, as a parameter, a 2D array of variable size. So far I have this: And I have declared an array elsewhere in my code: However...

Converting 2 dimensional array to Single dimensional in C#?

Converting 2 dimensional array to Single dimensional in C#? I am converting 2dimensional array to Single dimensional in C#. I receive the 2 dimensional array from device (C++) and then I convert it to...

Serializing Multidimensional array to JSON with ServiceStack

Serializing Multidimensional array to JSON with ServiceStack Returning the following object excludes the property "coordinates" from the JSON. What am I doing wrong? ``` [Route("/GeozonePolygon/{ZoneT...

Multidimensional Arrays vs. Array of Arrays in Response DTO

Multidimensional Arrays vs. Array of Arrays in Response DTO I have a DTO that I'm using with the ServiceStack 'JsonServiceClient', and it appears a multidimensional array arrives as 'null' on my clien...

Iterate through 2 dimensional array

Iterate through 2 dimensional array I have a "connect four board" which I simulate with a 2d array (array[x][y] x=x coordinate, y = y coordinate). I have to use "System.out.println", so I have to iter...

12 Sep at 00:52

Iterating over a 2 dimensional python list

Iterating over a 2 dimensional python list I have created a 2 dimension array like: Printing this list gives an output: where each list item i

18 Jun at 17:3

How to sort a multi-dimensional XML file?

How to sort a multi-dimensional XML file? I have tried to get an XML file to sort and have had no luck. After a day and a-half, I need some help from an expert. Thanks. My XML File (shortened for the ...

n-dimensional Array

n-dimensional Array I want to create an n-dimensional array of doubles. At compile-time, the number of dimensions n is not known. I ended up defining the array as a dictionary, with the key being an a...

16 Nov at 11:1

How to copy a row of values from a 2D array into a 1D array?

How to copy a row of values from a 2D array into a 1D array? We have the following object which is only used with a fixed first index ``` int iIndex = 5; for (int iLoop = 0; iLoop

28 Apr at 11:11

Creating an array of two-dimensional arrays in C#

Creating an array of two-dimensional arrays in C# I simply want to create an array of two dimensional arrays to store coordinate points. So I want an array where each index returns a two dimensional a...

Why do C# multidimensional arrays not implement IEnumerable<T>?

Why do C# multidimensional arrays not implement IEnumerable? I have just noticed that a multidimensional array in C# does not implement `IEnumerable`, while it does implement `IEnumerable`. For single...

19 May at 11:12

Selecting a multi-dimensional array in LINQ

Selecting a multi-dimensional array in LINQ I have a task where I need to translate a DataTable to a two-dimensional array. That's easy enough to do by just looping over the rows and columns (see exam...

1 Apr at 18:48

Compiler Error: Invalid rank specifier: expected',' or ']' on Two Dimensional Array Initialization

Compiler Error: Invalid rank specifier: expected',' or ']' on Two Dimensional Array Initialization I have an assignment for a class that is to be done in C#. Being a complete C# newbie, I did the proj...

8 Dec at 04:35

How to initialize an array of 2D-arrays?

How to initialize an array of 2D-arrays? I have an array of 2D-arrays. For example, it is like: But If I write ``` int [,][] arrays={{{0, 0, 1}, {1, 0, 0}} {{0, 0, 3}, {2, 1, 2}, {2, 2, 1}, {...

push() a two-dimensional array

push() a two-dimensional array I'm trying to push to a two-dimensional array without it messing up, currently My array is: And my code I'm trying is: ``` var r = 3; //start from rows 3 var c = 5; //st...

Loop a multidimensional array and only print two specific column values per row

Loop a multidimensional array and only print two specific column values per row How can I print the filepath and filename values from each row? ``` Array ( [0] => Array ( [fid] => 14 [li...

2D array values C++

2D array values C++ I wanted to declare a 2D array and assign values to it, without running a for loop. I thought I could used the following idea Which works fine to initialize the 2D array as well. B...

How do I parse a multidimensional JSON array using ServiceStack.Text?

How do I parse a multidimensional JSON array using ServiceStack.Text? I read [this post](https://github.com/ServiceStack/ServiceStack.Text/blob/master/tests/ServiceStack.Text.Tests/UseCases/GMapDirect...

Printing a 2D array in C

Printing a 2D array in C how would I print a 2d array in c say if the user types in 3 5, the output will be: Here is the code that I have written so far (newbie here): ``` #include #define MAX 10 int ...

30 Apr at 02:13

Json MultiArray & ServiceStack

Json MultiArray & ServiceStack There is a line {"level": [{"level": 1, "points": 0, "name": "Some"}, {"level": 2, "points": 50, "name": "Second level "}, {" level ": 3," points ": 100," name ":" third...