Find and indexing repeating elemnts in an array using Matlab
Find and indexing repeating elemnts in an array using Matlab Stack Overflow Find and indexing repeating elemnts in an array using Matlab Asked 9 years 5 months ago Modified 9 years 5 months ago Viewed 590 times 0 I have an array A 10 20 20 30 40 10 50 Is there any smart way to find and locate the repeating elements of this array i e
Repeat copies of array elements MATLAB repelem MathWorks, Description example u repelem v n where v is a scalar or vector returns a vector of repeated elements of v If n is a scalar then each element of v is repeated n times The length of u is length v n If n is a vector then it must be the same length as v
How to detect duplicate values and its indices within an array in MATLAB
In this article we will discuss how to find duplicate values and their indices within an array in MATLAB It can be done using unique length setdiff and numel functions that are illustrated below Using Unique Unique A function is used to return the same data as in the specified array A without any repetitions
Repeat copies of array MATLAB repmat MathWorks, Description example B repmat A n returns an array containing n copies of A in the row and column dimensions The size of B is size A n when A is a matrix example B repmat A r1 rN specifies a list of scalars r1 rN that describes how copies of A are arranged in each dimension
Find Array Elements That Meet a Condition MATLAB Simulink MathWorks
Find Array Elements That Meet a Condition MATLAB Simulink MathWorks, Find Array Elements That Meet a Condition This example shows how to filter the elements of an array by applying conditions to the array For instance you can examine the even elements in a matrix find the location of all 0s in a multidimensional array or replace NaN values in data
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Check if there are repeated elements in a vector MATLAB Answers
Check if there are repeated elements in a vector MATLAB Answers Check if there are repeated elements in a vector MATLAB Answers MATLAB Central Check if there are repeated elements in a vector Follow 112 views last 30 days Show older comments Max on 4 Dec 2012 Vote 2 Link Commented Image Analyst on 25 Nov 2021 Accepted Answer Image Analyst
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3 Answers Sorted by 3 This one liner works as expected B accumarray A 1 length A x sort x B is a cell array where B i contains the sorted list of indices where i is located Share Improve this answer Follow answered Apr 29 2015 at 1 40 Simon 31 9k 9 81 92 Finding Positions of Repeating Elements in a Matrix in Matlab. MaxCountElement uniqueCellData indexToMaxCellCount The essence of the algorithm is using the hist function to count up the frequency Unfortunately that function only works on numeric arrays so I had to use the ismember command to map the cell array values to numeric values A further complication was the existence of the empty cell 7 Answers Sorted by 21 I m a fan of the KRON function a 1 3 N 3 b kron a ones 1 N b 1 1 1 2 2 2 3 3 3 You can also look at this related ion which dealt with replicating elements of 2 D matrices to see some of the other solutions involving matrix indexing Here s one such solution inspired by Edric s answer
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