» Home » dimensional » Page 1
 How to assign a particular row of two dimensional array passed as an argument of the function to one-dimensional vector in c++ by Ertaz in C & C++ & C# This is what I do, but I get segmentation fault when I debug (Step Into -> v.assign() is the problem.```void vertex::sort_all_neighbours(int i, int **array, int size_array){v.reserve(size_array); v.assign(&array[i][0], &array[i][size_array-1]);//for (j = 0; j < size_array; j++) v[j] = array[i][j];make_heap(v.begin(), v.end());sort_heap(v.`````` TAGS : assign particular dimensional array passed argument ``` Convert Single-Dimensional array with child/parent relationships to Multi-Dimensional Tree in PHP by Chunkee in PHP I'm trying to write an algorithm to do the following:In PHP/Postgres, I'm returning a 1-dimensional array from the database, and each row has a view_page_id as well as a view_page_parent_id. I've done a self-join on the table, and am returning the results sorted ASC by parent_id.Here's an example:```Array( [0] => Array ( TAGS : Convert Single Dimensional array with child ``` Creating a three dimensional jagged array to store two dimensional arrays of varying size in java by Darren Torpey in Java Say I have less than ten two dimensional arrays representing matrices in java. Each array is enumerated from 0 to 6. Each array is n*2^enumval larger where n is the number of elements from the 0th enumerated array, thus my multidimensional will almost be pyramid shaped, hence the need for a jagged three dimensional array. Is it possible to create a jagged three dimensional array? TAGS : Creating three dimensional jagged array store matlab - creating a single dimensional array from two dimensional parts by Miklebud in Programming Languages hi i have the following situation` h = [0,1,1,1; 0,0,0,0; 1,1,1,1];`i'll check incoming values which can range between 0 and rowsize of h, i.e. in this case 2,. so my options are 0,1,2.now i want to create a single dimensional array (let's name it j) as followswhenever the incoming value is 0< TAGS : matlab creating single dimensional array from How can i create a one-dimensional array to hold several two-dimensional arrays? by Lucas Thompson in Programming Languages I have a game I've been working on. It is a text based RPG adventure game. I hope to have the player navigate the world using simple text commands. I have set it up so that the world should be divided into "regions" or arrays. Each region is of the custom datatype Location and is composed of a two-dimensional array. I will use two variables to track the players location which are really the two TAGS : create dimensional array hold several dimensional Finding dimensional index in a multi-dimensional array in R by Idontcare in Programming Languages Am looking at say 3-dimensional array M: `M<-dim(3,3,3)`I want to find an efficient way to populate M with the following rule: M[i,j,k] = i/10 + j^2 + sqrt(k), ideally without having to write a loop with a `for` statemenet. For clarification, there is a simple way to accomplishing this if M were 2-dimensional. If i wanted to hav TAGS : Finding dimensional index multi dimensional array How to convert single dimensional arrays to multi dimensional ones? (C#) by bdurbin in Programming Languages I have to use a method which accepts double[,], but I only have a double[]. How can I convert it?Solution so far:```var array = new double[1, x.Length];foreach (var i in Enumerable.Range(0, x.Length)){ array[0, i] = x;}``` TAGS : convert single dimensional arrays multi dimensional assigning one row of a two dimensional array to a one dimensional matrix by ruby-on-rails in Programming Languages So I have a 2D array and I want to assign row 'pth' row of the 2D array to a new 1D array:My code looks like this:```float temp[] = { *aMatrix[p] }; // aMatrix is a 10x10 array // am trying to assign the pth row // to temp. *aMatrix[p] = *aMatrix[max];*aMatrix[max] = *temp;float t = b`````` TAGS : assigning dimensional array dimensional matrix ``` C: two-dimensional array slower then single-dimensional? by Ansari in Programming Languages I thought, that if single-dimensional is implemented somehow like `a[i]=*(a+i), `so a[i][j] must be `*(a+i*ROWSIZE+j)`Am I wrong?Read here http://habrahabr.ru/blogs/algorithm/135948/ Думаю, не стоит говорить о том, что одномерный массив быст TAGS : dimensional array slower then single dimensional Getting single dimensional array, not multi dimensional by fstender in Web Design When I run`[w*2 for w in [1, 2, 3]]`I get`[[2, 4, 6]]`but actually I want`[2, 4, 6]`Live exampleObviously following is in option, but I do not want to rely on that:`[w*2 for w in [1, 2, 3]][0]` TAGS : Getting single dimensional array multi dimensional