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You may receive emails, depending on your notification preferences. How to traverse table row based on sets. Vote 0. Commented: Guillaume on 9 Oct Let's say that I have a table in an excel spreadsheet that looks like this based off of real GPS data, but for the sake of this question, all of these are just random numbers :.

Set number PRN X-coordinate y-coordinate z-coordinate I also know I can loop through the table by row using the command:. However, more specifically, I want to loop through all the table based off the set numbers in each row.

One snag is that the number of set numbers varies.By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service. The dark mode beta is finally here. Change your preferences any time. Stack Overflow for Teams is a private, secure spot for you and your coworkers to find and share information.

V is a image matrix. D0 and D1 are right and left root of binary trees for level 1.

## how to traverse a multidimensional array

I want to make it with recursive function. And as an Output I need all roots of means in array M. Please any idea to make it recursive? I believe this is the solution you are looking for. The tricky part is keeping track of the indices as usual. Learn more.

How can I make recursive function for binary tree in matlab Ask Question. Asked 6 years, 2 months ago. Active 1 year, 5 months ago. Viewed 2k times. Active Oldest Votes. Undefined function or variable 'iL'. I thought it was there but there was an indentation issue: fixed now. Sign up or log in Sign up using Google. Sign up using Facebook.

Sign up using Email and Password. Post as a guest Name. Email Required, but never shown. The Overflow Blog. The Overflow How many jobs can be done at home? Featured on Meta. Community and Moderator guidelines for escalating issues via new response….

Feedback on Q2 Community Roadmap. Triage needs to be fixed urgently, and users need to be notified upon…. Dark Mode Beta - help us root out low-contrast and un-converted bits. Technical site integration observational experiment live on Stack Overflow. Related 2. Hot Network Questions.Traversal is a process to visit all the nodes of a tree and may print their values too.

Because, all nodes are connected via edges links we always start from the root head node. That is, we cannot randomly access a node in a tree. Generally, we traverse a tree to search or locate a given item or key in the tree or to print all the values it contains. In this traversal method, the left subtree is visited first, then the root and later the right sub-tree. We should always remember that every node may represent a subtree itself.

If a binary tree is traversed in-orderthe output will produce sorted key values in an ascending order. We start from Aand following in-order traversal, we move to its left subtree B. B is also traversed in-order. The process goes on until all the nodes are visited. In this traversal method, the root node is visited first, then the left subtree and finally the right subtree. We start from Aand following pre-order traversal, we first visit A itself and then move to its left subtree B.

B is also traversed pre-order. In this traversal method, the root node is visited last, hence the name. First we traverse the left subtree, then the right subtree and finally the root node. We start from Aand following Post-order traversal, we first visit the left subtree B.

B is also traversed post-order. To check the C implementation of tree traversing, please click here. Previous Page.

Next Page. Previous Page Print Page.Documentation Help Center. Depth-first search. For introductory information on graph theory functions, see Graph Theory Functions. In the N-by-N sparse matrix, all nonzero entries indicate the presence of an edge.

You can specify one or more properties in any order. Each PropertyName must be enclosed in single quotes and is case insensitive. DepthValue is an integer indicating a node in the graph represented by the N-by-N adjacency matrix extracted from a biograph object, BGObj.

Default is Inf infinity. Set DirectedValue to false for an undirected graph. This results in the upper triangle of the sparse matrix being ignored. Default is true. Choices are:. Choose a web site to get translated content where available and see local events and offers. Based on your location, we recommend that you select:. Select the China site in Chinese or English for best site performance.

Other MathWorks country sites are not optimized for visits from your location. Toggle Main Navigation. Search MathWorks. Off-Canvas Navigation Menu Toggle. Arguments BGObj Biograph object created by biograph object constructor. S Integer that indicates the source node in BGObj. DirectedValue Property that indicates whether graph represented by an N-by-N adjacency matrix extracted from a biograph object, BGObj is directed or undirected.

Enter false for an undirected graph. MethodValue Character vector that specifies the algorithm used to traverse the graph. Choices are: 'BFS' — Breadth-first search. References [1] Sedgewick, R. See Also allshortestpaths biograph conncomp graphtraverse isdag isomorphism isspantree maxflow minspantree shortestpath topoorder Topics biograph object.

Select a Web Site Choose a web site to get translated content where available and see local events and offers. Select web site. Biograph object created by biograph object constructor.

Integer that indicates a node in BGObj that specifies the depth of the search. Property that indicates whether graph represented by an N-by-N adjacency matrix extracted from a biograph object, BGObj is directed or undirected. Character vector that specifies the algorithm used to traverse the graph.Sign in to comment. Sign in to answer this question. Unable to complete the action because of changes made to the page. Reload the page to see its updated state.

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Select the China site in Chinese or English for best site performance.

## traversing an array of elements

Other MathWorks country sites are not optimized for visits from your location. Toggle Main Navigation. Search Answers Clear Filters. Answers Support MathWorks.

**MATLAB Traverse adjustment**

Search Support Clear Filters. Support Answers MathWorks. Search MathWorks. MathWorks Answers Support. Open Mobile Search. Trial software. You are now following this question You will see updates in your activity feed. You may receive emails, depending on your notification preferences. Vote 0.Documentation Help Center. Depth-first search. For introductory information on graph theory functions, see Graph Theory Functions.

In the N-by-N sparse matrix, all nonzero entries indicate the presence of an edge. You can specify one or more properties in any order. Each PropertyName must be enclosed in single quotes and is case insensitive. DepthValue is an integer indicating a node in the graph represented by the N-by-N adjacency matrix extracted from a biograph object, BGObj.

Default is Inf infinity. Set DirectedValue to false for an undirected graph. This results in the upper triangle of the sparse matrix being ignored. Default is true. Choices are:. Choose a web site to get translated content where available and see local events and offers. Based on your location, we recommend that you select:.

Select the China site in Chinese or English for best site performance. Other MathWorks country sites are not optimized for visits from your location. Toggle Main Navigation. Off-Canvas Navigation Menu Toggle. Arguments BGObj Biograph object created by biograph object constructor.

S Integer that indicates the source node in BGObj. DirectedValue Property that indicates whether graph represented by an N-by-N adjacency matrix extracted from a biograph object, BGObj is directed or undirected. Enter false for an undirected graph. MethodValue Character vector that specifies the algorithm used to traverse the graph. Choices are: 'BFS' — Breadth-first search. References [1] Sedgewick, R.By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service.

Stack Overflow for Teams is a private, secure spot for you and your coworkers to find and share information. I have a problem. The problem is, I don't know how to do this for an arbitrary number of dimensions. I know I can say. This is useful if you don't need to know what i,j,k, you are at. However, if you don't need to know what index you are at, you are probably better off using arrayfun. The idea of a linear index for arrays in matlab is an important one.

For example. As you can see, the 8th element is the number 7.

### How to traverse table row based on sets

In fact, the function find returns its results as a linear index. The result is, we can access each element in turn of a general n-d array using a single loop. For example, if we wanted to square the elements of A yes, I know there are better ways to do thisone might do this:. There are many circumstances where the linear index is more useful. Conversion between the linear index and two or higher dimensional subscripts is accomplished with the sub2ind and ind2sub functions.

The linear index applies in general to any array in matlab. So you can use it on structures, cell arrays, etc. The only problem with the linear index is when they get too large. It is really only an issue if you use sparse matrices often, when occasionally this will cause a problem.

As pointed out in a few other answers, you can iterate over all elements in a matrix A of any dimension using a linear index from 1 to numel A in a single for loop. There are also a couple of functions you can use: arrayfun and cellfun. You first create a function handle to this function:. If A is a matrix of type double, single, etc.

One caveat on outputs One other trick is to use ind2sub and sub2ind. In conjunction with numel and sizethis can let you do stuff like the following, which creates an N-dimensional array, and then sets all the elements on the "diagonal" to be 1.

Not as fast as vectorized methods if you want to check all the points, but if you don't need to evaluate most of them it can be quite a time saver. The timing information that this post has referenced is incorrect and inaccurate due to a fundamental typo that was made see comments stream below as well as the edit history - specifically look at the first version of this answer.

Caveat Emptor. If you look deeper into the other uses of size you can see that you can actually get a vector of the size of each dimension. This link shows you the documentation:. After getting the size vector, iterate over that vector. Something like this pardon my syntax since I have not used Matlab since college :. Also, you should be able to do Linear Indexing as described here.

So you can write the code for increasing such n-digit number.

That way you can simulate nested for loops that begin somewhere in the table and finish not at the end. How are we doing? Please help us improve Stack Overflow.

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