![]() The cell arrays are not the same size (can be in the range of thousands) and each entry can be be a different length (ranging from length 1 to length >1000). In other words, I’d like to see if this row vector btedges (i,:) matches any row in the. Since you seem to be iterating over the rows of the matrix, maybe you can tell us more about what you want to do with those logical indices?Īlso, you can get the unique rows of your matrix by a simple call to unique: julia> A = vcat((a,b,a,a,a,a,b,b,b). Accepted Answer: Jan I have two large cell-arrays (X and Y) where each field is a two dimensional array representing pixel positions. Hello I’m trying to convert the following MATLAB code into Julia: btedges 6 7 6 8 7 8 btedges (i,:) ans 7 8 uval ismember (btedges,btedges (i,:),'rows') uval 3×1 logical array 0 0 1. Using filter! reduces the use of temporary arrays. In contrast, Julia provides the higher order functions filter and filter!, allowing users to write filter(z->z>3, x) and filter!(z->z>3, x) as alternatives to the corresponding transliterations x and x = x. In MATLAB, an idiomatic way to remove unwanted values is to use logical indexing, like in the expression x(x>3) or in the statement x(x>3) = to modify x in-place. Note that logical indexing creates a temporary array (the vector saving the indices), potentially leading to slower than necessary code if they are created in a hot loop. The built-in 'ismember' function in MATLAB fails to perform when the input variables are cells containing different types of variables. GPU Arrays Accelerate code by running on a graphics processing unit (GPU) using Parallel Computing Toolbox. = bt_edges),dims=2)Īnd return a logical vector like in the MATLAB code. 'cellismember' is a function that performs ' ismember ' on cell arrays with various data types. Thread-Based Environment Run code in the background using MATLAB backgroundPool or accelerate code with Parallel Computing Toolbox ThreadPool. ![]() broadcasted uval = all(in.(bt_edges',bt_edges),dims=2) and I am trying to use ismember to assign values from cell array x to cell array y based on two conditions: if the values of the second and third colum of cell array x match the values of the second and third colum of cell array y, then I want to replace the values of the 4th column of cell array y with the values of the first column of cell array x (sorry if its a bit confusing). I can’t see much difference between the two: using BenchmarkTools
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