## Index value matlab

I was wondering if there is a quick way in matlab (pretty sure there is and I just don't know it!) to get all the values of an array at specific indices. Example: If I have an array: a = [1,3,5,7,9] and I have my list of indices [2,3], I am looking for a function that will give me back [3,5] which are the values at indices 2,3 in the array 'a Find indices of elements in an array based on a search from another array. Ask Question Asked 7 years, 4 months ago. for i = 1:length(b) index = find(a == b(i)); c = [c, index(1)] end But it would be ideal for it to be easier then this. arrays matlab search matrix find. Vector Indexing, or vector index notation, specifies elements within a vector. Indexing is useful when a MATLAB program only needs one element of a series of values. Indexing is often used in combination with repetition structures to conduct the same process for every element in an array. In MATLAB, the first element is given an index of 1.

You can access the Index value using the output you get when you load the image, for instance if you store the image data in a structure called s: Find indices and values of nonzero elements returns the row and column indices of the nonzero entries in the matrix X . This syntax is especially useful when  find. Find indices and values of nonzero elements. Syntax. k = find(x) [i , j] = find(X ) [i , j , v] = find(X). Description. k = find(X) returns the indices of the array X that  The Rand index or Rand measure in statistics, and in particular in data clustering, is a measure The Rand index has a value between 0 and 1, with 0 indicating that the two data clusterings do C++ implementation with MATLAB mex files.

## 32 54. 78 45. now i wish to get the value from A 7 and B 23 12 through index value. suppose 7 value store in A 4 location now i get the 4 location values from B

how to find index of matrix if value is known?. Learn more about index, mathematical It does work! The linear index of 5 is 4 not 5! But if you want to extract row and column you just need to adapt the code Jan gave you. Store the row and column return from find and put it in the match cell array. I am brand new to Matlab. I am trying to obtain the last value of an index that meets the following criteria: Please click below onto the label to load the interactive demonstration on MATLAB matrix indexing. The selected cells are visualized. A format of a cell is: the linear index is in the superscript while the 2d coordinates are in subscript. The value of a cell equals to its linear index for simplicity. I'm trying to find the maximum value of a certain column in a matrix. I want to find both the maximum value and the index of the row in which it is. How can I do this?

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Indexing into a matrix is a means of selecting a subset of elements from the matrix. MATLAB ® has several indexing styles that are not only powerful and flexible, but also readable and expressive. Indexing is a key to the effectiveness of MATLAB at capturing matrix-oriented ideas in understandable computer programs. In MATLAB®, there are three primary approaches to accessing array elements based on their location (index) in the array. These approaches are indexing by position, linear indexing, and logical indexing. Indexing with Element Positions The most common way is to explicitly specify the indices of the elements.

### In MATLAB®, there are three primary approaches to accessing array elements based on their location (index) in the array. These approaches are indexing by position, linear indexing, and logical indexing. Indexing with Element Positions The most common way is to explicitly specify the indices of the elements.

Indexing into a matrix is a means of selecting a subset of elements from the matrix. MATLAB ® has several indexing styles that are not only powerful and flexible, but also readable and expressive. Indexing is a key to the effectiveness of MATLAB at capturing matrix-oriented ideas in understandable computer programs. In MATLAB®, there are three primary approaches to accessing array elements based on their location (index) in the array. These approaches are indexing by position, linear indexing, and logical indexing. Indexing with Element Positions The most common way is to explicitly specify the indices of the elements. Indexing: vectors in MATLAB are not the same as in every other programming language because the indexing starts from one instead of zero, which means that the first value has the index one. How to get the index of a value in a table? Follow 228 views (last 30 days) EM on 22 Sep 2019. Vote. 0 ⋮ Vote. 0. Commented: madhan ravi on 22 Sep 2019 Accepted Answer: madhan ravi. Hi everyone, I'm new into Matlab. I have a table T with let's say 2000 raws in one column. Values in the table are not similar. I want to get the index of an

## Find indices of elements in an array based on a search from another array. Ask Question Asked 7 years, 4 months ago. for i = 1:length(b) index = find(a == b(i)); c = [c, index(1)] end But it would be ideal for it to be easier then this. arrays matlab search matrix find.

Every variable in MATLAB® is an array that can hold many numbers. When you want to access selected elements of an array, use indexing. For example, consider the 4-by-4 magic square A : A = magic(4)

In MATLAB®, there are three primary approaches to accessing array elements based on their location (index) in the array. These approaches are indexing by position, linear indexing, and logical indexing. Indexing with Element Positions The most common way is to explicitly specify the indices of the elements. Indexing: vectors in MATLAB are not the same as in every other programming language because the indexing starts from one instead of zero, which means that the first value has the index one. How to get the index of a value in a table? Follow 228 views (last 30 days) EM on 22 Sep 2019. Vote. 0 ⋮ Vote. 0. Commented: madhan ravi on 22 Sep 2019 Accepted Answer: madhan ravi. Hi everyone, I'm new into Matlab. I have a table T with let's say 2000 raws in one column. Values in the table are not similar. I want to get the index of an