I have gotten the output feature of this layer using activations function in matlab as: Feature = activations (net, trainingset, 15); Accepted Answer Guillaume on 3 Dec 2015 1 Link Translate The way to do this is to reshape your image into an nx3 matrix where each row correspond to the three colours of a pixel. The point to the answers you have gotten is if you want it to run across columns, then you can easily convert columns into rows, and THEN use reshape. Accelerating the pace of engineering and science. Based on This magical matrix is one where the diagonal, and the rows add to give the same sum. I used permut function but the data are not in the correct order : ( any help would be appreciated. your location, we recommend that you select: . Here is the original reshaping: Now I want to go backwards, I did some editing to the image, and now I want to make it 3D again, with 144 dimensions. 6 9 You may receive emails, depending on your. Learn more about matrix 2d 3d My data ID X1 X2 1 1 2 1 5 2 2 2 4 2 4 7 3 2 4 3 4 7 3 5 11 My . 6 2 1 7 I will be working with much bigger matrices, in particular 450x450x450. P.S. This is a fast, O (1) operation (it just adjusts it header of what the shape . 5 4 Accelerating the pace of engineering and science. Start Hunting! 7 8 I have a 3d matrix with the dimension of 1*458*289 that should be reshaped to be 458*289*1. B(:,:,4) = https://www.mathworks.com/matlabcentral/answers/435962-how-to-reshape-3d-matrix, https://www.mathworks.com/matlabcentral/answers/435962-how-to-reshape-3d-matrix#answer_352611, https://www.mathworks.com/matlabcentral/answers/435962-how-to-reshape-3d-matrix#comment_651227, https://www.mathworks.com/matlabcentral/answers/435962-how-to-reshape-3d-matrix#comment_651332, https://www.mathworks.com/matlabcentral/answers/435962-how-to-reshape-3d-matrix#comment_651652, https://www.mathworks.com/matlabcentral/answers/435962-how-to-reshape-3d-matrix#comment_651693. I used permut function but the data are not in the correct order : ( 37 38 39 40 A(:,:,1) = 25 26 Reload the page to see its updated state. Accelerating the pace of engineering and science. Reshape 3d matrix to 2d matrix. offers. Find the treasures in MATLAB Central and discover how the community can help you! 18 20 22 24 26 28 30 32 offers. Here is the original reshaping: [r c d] = size (data); % Originally a 340x740x144 array. 1 2 2 2 1 2 3 4 13 14 15 16 img = reshape (data,r*c,d); % This gives me a 251600x144 array. Unable to complete the action because of changes made to the page. Copy. 6 5 5 9, B(:,:,1) = 15 16 Accepted Answer madhan ravi on 16 Dec 2018 1 Link Translate Edited: madhan ravi on 16 Dec 2018 If you had 366 individual 1440*720 matrices, then you could stack (and reshape/permute) them into a 366*1440*720 array (or a 1440*720*366 array, or whatever, as long as there's still 379,468,800 . Is it possible to reshape a vector into 3D matrix Follow 73 views (last 30 days) Show older comments Mammo Image on 17 Nov 2017 Edited: Mammo Image on 17 Nov 2017 I have a conv layer output which is 13x13x256. 9 10 11 12 Unable to complete the action because of changes made to the page. Reshape a 3D matrix Follow 22 views (last 30 days) Show older comments gianluca on 4 Oct 2019 Vote 0 Link Commented: Stephen23 on 5 Oct 2019 I have 3 vectors Theme Copy x = [1 2 3]; y = [4 5 6]; z = [7 8 9]; from which I create a meshgrid (I use this 3D mesh to compute some values so that I have also a 3D matrix A of size 3-by-3-by-3 Theme Copy You can also select a web site from the following list: Select the China site (in Chinese or English) for best site performance. Accelerating the pace of engineering and science. 31 32 A3= [G H I J; K L M N; O P Q R; S T U V ], Now I want to reshape it to 3*2*8 such that, Your question is ambiguous. Then, if the last two coordinates are spatial (time is 4, m is 6, n is 8) you use: and you end up with a 4x48 array. 4 8 12 16 https://www.mathworks.com/matlabcentral/answers/483659-reshape-a-3d-matrix, https://www.mathworks.com/matlabcentral/answers/483659-reshape-a-3d-matrix#answer_394879, https://www.mathworks.com/matlabcentral/answers/483659-reshape-a-3d-matrix#comment_752969, https://www.mathworks.com/matlabcentral/answers/483659-reshape-a-3d-matrix#answer_394910, https://www.mathworks.com/matlabcentral/answers/483659-reshape-a-3d-matrix#comment_752962, https://www.mathworks.com/matlabcentral/answers/483659-reshape-a-3d-matrix#comment_752966, https://www.mathworks.com/matlabcentral/answers/483659-reshape-a-3d-matrix#comment_752978, https://www.mathworks.com/matlabcentral/answers/483659-reshape-a-3d-matrix#comment_752995. The example above, gave us the magic matrix (4) in the first line of code. Skip to content. I want to reshape it in such a way that I extract two colums from each third dimension. 2 9 6 2 How can it be done for large matrix of 36*42*7 to reshpae it into 7*2*756 in a simlar way? 21 22 Find the treasures in MATLAB Central and discover how the community can help you! If one assumes that everything should be columnwise, then you can just use reshape(). Z3(:,:,6) = 2 4 What's the most efficient way to do this (preferably without the need for a loop)? *size(z)-by-4, like that: "The code below should do what you want:", Actually it doesn't do what was asked**: it returns the values of. Reload the page to see its updated state. The np.zeros method takes a tuple in the form of (row_num,col_num) as its input argument and returns a two-dimensional matrix of shape row_num x col_num. Divakar 1 Elapsed time is 0.743586 seconds. Choose a web site to get translated content where available and see local events and sz must contain at least 2 elements, and prod (sz) must be the same as numel (A). 7 9 out = permute(reshape(a',[c,r/nlay,nlay]),[2,1,3]); Yes, MATLAB does 'think' along rows. I used permut function but the data are not in the correct order :(, If the below doesn't do what you want , give an example of a short 3D matrix and the desired output. I have a 3d matrix with the dimension of 1*458*289 that should be reshaped to be 458*289*1. 5 1 5 4 19 20 If the first two are spatial and the last is time (m is 4, n is 6, time is 8) you use: example 5 6 3 3 Other MathWorks country After completing this tutorial, you will know: How to load the MNIST dataset in Keras. 3-D Solution and Gradient Plots with MATLAB Functions Types of 3-D Solution Plots Available in MATLAB In addition to surface and gradient plots available with the PDE plotting functions, you can use MATLAB graphics capabilities to create more types of plots for your 3-D model. 5 6 Learn more about reshape, repmat I have 3 vectors x = [1 2 3]; y = [4 5 6]; z = [7 8 9]; from which I create a meshgrid (I use this 3D mesh to compute some values so that I have also a 3D matrix A of size 3-by-3-by-3 [X,Y,Z]. Find the treasures in MATLAB Central and discover how the community can help you! MATLAB: Reshape every slice of a 3D matrix Reshape / Transform an upper triangular matrix in MATLAB How to slice a 3D matrix in matlab getting an array Get every sub matrix n columns long as column in new matrix in Matlab Reshape vector to matrix with column-wise zero padding in matlab Any help is appreciated, thank you in advance. sites are not optimized for visits from your location. collapse all. Other MathWorks country Z3(:,:,2) = 34 36 38 40 42 44 46 48, Z3(:,:,1) = thank you Sign in to answer this question. D = [1 1 2. I have a 3D matrix of 36*42*7 dimension. reshape a 2D to 3D matrix . % say you saved your 2nd derivative 3D image as 'Ds' Ds = [Dxx (:) Dxy (:) Dxz (:) Dyz (:) Dyy (:) Dyz (:) Dzz (:) Dzy (:) Dzz (:)]; % permute Ds = permute (Ds, [2 1]); % reshape n = numel (Dxx); Ds = reshape (Ds, [3 3 n]); Enjoy! How can I do . You can then apply unique with the 'rows' option on this to get your labels. Unable to complete the action because of changes made to the page. 41 42 43 44 You may receive emails, depending on your. Let's solve these problems of concatenating and cutting across the third dimension once and for all! 3 4 45 46 47 48, Z1(:,:,1) = your location, we recommend that you select: . A = magic (4). As you can guess, they will have 3 subscripts, one subscript along with row and column indexes as for the 2D matrix. reshape 3d matrix. 8 5 Based on And for the transpose: of course I'm aware. Is it possible to reshape a vector into 3D matrix Show older comments Mammo Image on 17 Nov 2017 Translate Edited: Mammo Image on 17 Nov 2017 I have a conv layer output which is 13x13x256. I'm trying to un-reshape a 2D image back to 3D image with a dimension of 144. For example, Assume I have 4*4*3 matrix Theme Copy A1= [a b c d; e f g h; i j k l; m n o p] A2= [q r s t; u v w x; y z A B; C D E F] You can also select a web site from the following list: Select the China site (in Chinese or English) for best site performance. 3-D Matrix is a multidimensional array that is an extension of two-dimensional matrices. B(:,:,8) = 21 22 23 24 reshape a 3d matrix into 2d. from which I create a meshgrid (I use this 3D mesh to compute some values so that I have also a 3D matrix A of size 3-by-3-by-3. How can I do this? I want use k-means to "group" the conditions for each participant, for instance, condition 1 for participant 1 can be closer to the condition 2 for participant 5. Z1(:,:,2) = B(:,:,3) = A(:,:,2) = I have variable sst as 1440*720 and time variable as 1*366. . If you disagree, please explain your reasons to call it buggy. You may receive emails, depending on your. Follow 46 views (last 30 days) Show older comments Lilya on 16 Dec 2018 Vote 0 Link Commented: madhan ravi on 17 Dec 2018 Accepted Answer: madhan ravi Hi all, I have a 3d matrix with the dimension of 1*458*289 that should be reshaped to be 458*289*1. I have a 3D matrix, 9 subjects by 12 conditions by 62 channels. Cambiar a Navegacin Principal Hi I am a beginner in matlab and I am trying to stack 2D matrix into 3D matrix. e.g. is not officially a transpose, but since both will flip the first two dimensions I think it is fine to call it that informally. 5 1 Sign in to answer this question. I do know that it can be done something like this: for example A is of 3000x64x278 matrix so I can call its first matrix as Theme Copy B=A (:,:,1); to change it into 3000*64 that means every column under one column I can do Theme Copy B=B (:); so There are more 277 columns to fill, how should I do that? 2 2 4. That means my final matrix dimension would be 7*2*756. That means you need to use transpose on your matrix first. Acquista MATLAB; If the first two are spatial and the last is time (m is 4, n is 6, time is 8) you use: 25 26 27 28 5 8 P.S. Z2(:,:,3) = 6 5 13 14 Translated by I still stand by my suggested code. Reshape Vector into Matrix. That means my final matrix dimension would be 7*2*756. I want to convert a 3D matrix A (:,:,1)= [1,2;3,4] A (:,:,2)= [5,6;7,8] A (:,:,3)= [9,10;11,12] into a 2D matrix A= [1,2,5,6,9,10;3,4,7,8,11,12]. 11 12 Then, transpose and reshape. A(:,:,3) = Learn more about reshape MATLAB. I want reshape the meshgrid and A to obtain a matrix (x y z value of A) of dimension size(x).*size(y). (1) B = reshape (A, [],2). 35 36 Learn more about 23, 2d, reshape 2 4 6 8 10 12 14 16 Here, row_num and col_num are the number of rows and columns in the matrix .. "/>. You can also select a web site from the following list: Select the China site (in Chinese or English) for best site performance. Stephen23 on 11 May 2016 "How can it be done for large matrix of 36*42*7 to reshpae it into 7*2*756 in a simlar way? I agree with the first part of that comment, but not the second part. sites are not optimized for visits from your location. Theme Copy using reshape Is there any way around this? 2 Answers Sorted by: 2 Solution: Using reshape r = reshape ( ch, [], size (ch,3) ); Mean_res = mean ( r (mask (:),: ), 2 ); Benchmarking (comparing this solution to the two proposed by Divakar) can be found here showing: Shai Elapsed time is 0.0234721 seconds. Choose a web site to get translated content where available and see local events and 33 35 37 39 41 43 45 47 sites are not optimized for visits from your location. 29 30 Based on in a different order to that requested by the question, giving: It does remove the need for a transpose, but otherwise meshgrid and ndgrid are equivalent in this context. 5 6 7 8 Thread-Based Environment Run code in the background using MATLAB backgroundPool or accelerate code with Parallel Computing Toolbox ThreadPool. MathWorks is the leading developer of mathematical computing software for engineers and scientists. B = permute(reshape(permute(A,[2,1,3]),[2,8,3]),[3,1,2]). 18 22 26 30 5 9, Z(:,:,1) = I reshape my data into a 2D matrix, 108 (9*12) by 62 channels and introduced to kmeans function. (2) The MATLAB system output is as follows: Let's dissect the code. 5 7 In this post, you will discover how to develop a deep learning model to achieve near state-of-the-art performance on the MNIST handwritten digit recognition task in Python using the Keras deep learning library. Accelerating the pace of engineering and science. Other MathWorks country Find the treasures in MATLAB Central and discover how the community can help you! The function 'reshape' picks elements column-wise, so it is not a viable option in this case. 7 3 There are various syntax which is used in Matlab like: R=reshape (X, size) This function is used to reshape the original matrix that is X into R with the size defined in the vector 'size'. 43 44 It's then just a matter of reshaping the output. Sign in to answer this question. 7 8 Accedere al proprio MathWorks Account Accedere al proprio MathWorks Account . If the first two are spatial and the last is time (m is 4, n is 6, time is 8) you use: and you end up with a 24x8 array. This can be helpful for preprocessing your data for subsequent computations or analyzing the data. How to develop and evaluate a baseline neural. reshape Reshape array collapse all in page Syntax B = reshape (A,sz) B = reshape (A,sz1,.,szN) Description example B = reshape (A,sz) reshapes A using the size vector, sz, to define size (B) . Z1(:,:,3) = Cambiar a Navegacin Principal How can I do this? B(:,:,6) = 39 40 We then instructed the system using the second line of code to . 23 24 Thanks. MathWorks is the leading developer of mathematical computing software for engineers and scientists. 6 6 sites are not optimized for visits from your location. Yes, MATLAB does 'think' along rows. 34 38 42 46 Z3(:,:,5) = 8 7 1 3 5 7 9 11 13 15 Z(:,:,2) = You need the command reshape: Say your initial matrix is (just for me to get some data): a=rand (4,6,8); Then, if the last two coordinates are spatial (time is 4, m is 6, n is 8) you use: a=reshape (a, [4 48]); and you end up with a 4x48 array. 1 7 7 9 Because it does not give the data in the requested order. . I'm trying to un-reshape a 2D image back to 3D image with a dimension of 144. 9 10 Community Treasure Hunt Find the treasures in MATLAB Central and discover how the community can help you! Reload the page to see its updated state. Z2(:,:,2) = The third subscript in a 3D Matrix is used to represent the sheets or pages of an element. I have a 3D matrix of 36*42*7 dimension. 5 1 8 1 Sign in to comment. just to double check, the resulted matrix will be 458*289 ? how to reshape a cube into one matrix in matlab 1 average 3d matrix matlab using reshape 0 Reshape MATLAB matrix with repeated indicies 1 Reshape NxMxT matrix in Matlab 2 MATLAB: Insert leading rows in every slice of 3D matrix Hot Network Questions Power supply for medium-scale 74HC TTL circuit Is there a word for feeling lazy? Reshape a 3D matrix. There are a number of ways 10584 elements can be reshaped from one array to another with the same number of elements. The manipulation of the matrices can be achieved by using 'permute' and 'reshape' as follows. Divakar 2 Elapsed time is 0.025841 seconds. It has to be a cell array, so I would simply do this, taking advantage of the third output of unique, using accumarray as a bin counter, and mat2cell to create the cell array: Theme. 33 34 35 36 Other MathWorks country 27 28 Share Follow 5 7 6 6 Part I (3D to 2D) : Concatenate along the columns and across the 3rd dim of a 3D array, A to form a 2D array - reshape (permute (A, [1 3 2]), [],size (A,2)) Part II (2D to 3D) : Cut a 2D array B after every N rows to form 3D slices of a 3D array - 47 48. B(:,:,5) = 3 3 2 2 Reload the page to see its updated state. 33 37 41 45 https://www.mathworks.com/matlabcentral/answers/409740-reshape-3d-into-2d-matrix-in-this-way, https://www.mathworks.com/matlabcentral/answers/409740-reshape-3d-into-2d-matrix-in-this-way#answer_328319. "If you disagree, please explain your reasons to call it buggy.". How can I do . Accepted Answer James Tursa on 11 Jul 2018 5 3 For example, if A is a 10-by-10 matrix, then reshape(A,2,2,[]) reshapes the 100 elements of A into a 2-by-2-by-25 array. How to reshape 3D matrix ?. https://www.mathworks.com/matlabcentral/answers/36563-reshaping-2d-matrix-into-3d-specific-ordering, https://www.mathworks.com/matlabcentral/answers/36563-reshaping-2d-matrix-into-3d-specific-ordering#answer_45713, https://www.mathworks.com/matlabcentral/answers/36563-reshaping-2d-matrix-into-3d-specific-ordering#comment_75712, https://www.mathworks.com/matlabcentral/answers/36563-reshaping-2d-matrix-into-3d-specific-ordering#comment_181581, https://www.mathworks.com/matlabcentral/answers/36563-reshaping-2d-matrix-into-3d-specific-ordering#comment_226078, https://www.mathworks.com/matlabcentral/answers/36563-reshaping-2d-matrix-into-3d-specific-ordering#comment_235265, https://www.mathworks.com/matlabcentral/answers/36563-reshaping-2d-matrix-into-3d-specific-ordering#comment_280502. your location, we recommend that you select: . B(:,:,7) = "It does remove the need for a transpose". By the description (", I use this 3D mesh to compute some values so that I have also a 3D matrix A of size 3-by-3-by-3. ") Otherwise, you'll have to explain how you want the data to be oriented. Based on 7 3 8 7 matrix 2d 3d Community Treasure Hunt Find the treasures in MATLAB Central and discover how the community can help you! I want to reshape it in such a way that I extract two colums from each third dimension. 29 30 31 32 I'd like to ask for your help in the following problem: I have an n by m 2D matrix which is formed by concatenating a number of k by m matrices, where k < n and n/k is a positive integer. I have gotten the output feature of this layer using activations function in matlab as: Feature = activations (net, trainingset, 15); how to reshape 3d matrix? For example, reshape (A, [2,3]) reshapes A into a 2-by-3 matrix. 2 9 Is there any way around this? Here is the original reshaping: Theme Copy 41 42 1 5 9 13 To make an adjacency matrix for a graph using the NumPy module, we can use the np.zeros method. Relaxing or relaxed MathWorks is the leading developer of mathematical computing software for engineers and scientists. 5 6 sites are not optimized for visits from your location. offers. I want to reshape it in such a way that I extract two colums from each third dimension. Simpler code is less buggy (as the answers on this thread demonstrate). Or you can combine the three statements in on as in, You may receive emails, depending on your. I want to reshape it in such a way that I extract two colums from each third dimension. Unable to complete the action because of changes made to the page. How can it be done for large matrix of 36*42*7? The reason for this is that in matlab, every variable is assumed to have an infinite number of trailing singleton dimensions (this is why reshape (rand (2), [2 2 1 1 1]) returns a [2 x 2] array instead of a [2 x 2 x 1 x 1 x 1] one: the trailing singleton dimensions are implicitly present, and are therefore omitted). MathWorks is the leading developer of mathematical computing software for engineers and scientists. Other MathWorks country Z3(:,:,3) = 17 18 19 20 17 21 25 29 Choose a web site to get translated content where available and see local events and If you calculate something based on all combinations of inputs, then it makes sense to want all inputs and output on the same line, and not de-couple them. That means my final matrix dimension would be 7*2*756. You can also select a web site from the following list: Select the China site (in Chinese or English) for best site performance. Z3(:,:,8) = I want to construct a three dimensional matrix that stores each k by m matrix in a different layer in the third dimension. Answers (2) Torsten 5 minutes ago Vote 0 Link Translate Ran in: Theme Copy. That means my final matrix dimension would be 7*2*756. Unable to complete the action because of changes made to the page. Now I want to go backwards, I did some editing to the image, and now I want to make it 3D again, with 144 dimensions. I want to convert a 3D matrix A(:,:,1)= [1,2;3,4] A(:,:,2)= [5,6;7,8] A(:,:,3)= [9,10;11,12] into a 2D matrix A=[1,2,5,6,9,10;3,4,7,8,11,12]. MATLAB Simulink Student Software Hardware Support File Exchange Downloads Trial Software Contact Sales Pricing and Licensing How to Buy Documentation Tutorials Examples Videos and Webinars Training Installation Help 2 4 7. offers. your location, we recommend that you select: . 33 34 You may receive emails, depending on your. My answer may not be as described, but it is not a bug. 5 1 5 6 7 8 8 1 Find the treasures in MATLAB Central and discover how the community can help you! offers. MATLAB Language Fundamentals Matrices and Arrays Matrix Indexing Find more on Matrix Indexing in Help Center and File Exchange Tags concatenate reshape matrix multidimensional a . 36 40 44 48, Z2(:,:,1) = I will be working with much bigger matrices, in particular 450x450x450. You need the command reshape: Say your initial matrix is (just for me to get some data): a=rand (4,6,8); Then, if the last two coordinates are spatial (time is 4, m is 6, n is 8) you use: a=reshape (a, [4 48]); and you end up with a 4x48 array. Then, transpose and reshape. Learn more about matrix, 3d, 2d, nxnxn, nxn, orientation, reshape, stack MATLAB, MATLAB and Simulink Student Suite Hello, I am new to Matlab and am having a bit of trouble shaping a 3D matrix in a certain way. Any help is appreciated, thank you in advance. Start Hunting! Learn more about reshape . 45 46 17 19 21 23 25 27 29 31 3 7 11 15 Reshaping The reshape function changes the size and shape of an array. Choose a web site to get translated content where available and see local events and I have a 3D matrix of 36*42*7 dimension. Z(:,:,3) = B(:,:,2) = Choose a web site to get translated content where available and see local events and I have a 3D matrix of 36*42*7 dimension. For example, reshape a 3-by-4 matrix to a 2-by-6 matrix. I'm trying to un-reshape a 2D image back to 3D image with a dimension of 144. Reload the page to see its updated state. 5 6 2 4 6 9 8 5 Z3(:,:,4) = 35 39 43 47 Based on 37 38 Navigazione principale in modalit Toggle. your location, we recommend that you select: . For example: 0.6443 0.1948 0.5949 0.7303 0.0377, 0.3786 0.2259 0.2622 0.4886 0.8852, 0.8116 0.1707 0.6028 0.5785 0.9133, 0.5328 0.2277 0.7112 0.2373 0.7962, 0.3507 0.4357 0.2217 0.4588 0.0987, 0.9390 0.3111 0.1174 0.9631 0.2619, 0.8759 0.9234 0.2967 0.5468 0.3354, 0.5502 0.4302 0.3188 0.5211 0.6797, 0.6225 0.1848 0.4242 0.2316 0.1366, 0.5870 0.9049 0.5079 0.4889 0.7212, 0.2077 0.9797 0.0855 0.6241 0.1068, 0.3012 0.4389 0.2625 0.6791 0.6538, 0.4709 0.1111 0.8010 0.3955 0.4942, 0.2305 0.2581 0.0292 0.3674 0.7791, 0.8443 0.4087 0.9289 0.9880 0.7150. 5 8 5 3 Many functions in MATLAB can take the elements of an existing array and put them in a different shape or sequence. 2 6 10 14 Reshape function in Matlab is used to modify the original or existing array into a different array with different dimensions or sequence. MathWorks is the leading developer of mathematical computing software for engineers and scientists. https://www.mathworks.com/matlabcentral/answers/883454-how-to-reshape-3d-matrix, https://www.mathworks.com/matlabcentral/answers/883454-how-to-reshape-3d-matrix#comment_1650229, https://www.mathworks.com/matlabcentral/answers/883454-how-to-reshape-3d-matrix#comment_1650244, https://www.mathworks.com/matlabcentral/answers/883454-how-to-reshape-3d-matrix#answer_751544, https://www.mathworks.com/matlabcentral/answers/883454-how-to-reshape-3d-matrix#comment_1650269, https://www.mathworks.com/matlabcentral/answers/883454-how-to-reshape-3d-matrix#comment_1650294, https://www.mathworks.com/matlabcentral/answers/883454-how-to-reshape-3d-matrix#comment_1650444, https://www.mathworks.com/matlabcentral/answers/883454-how-to-reshape-3d-matrix#answer_751534, https://www.mathworks.com/matlabcentral/answers/883454-how-to-reshape-3d-matrix#comment_1650274, https://www.mathworks.com/matlabcentral/answers/883454-how-to-reshape-3d-matrix#comment_1650299, https://www.mathworks.com/matlabcentral/answers/883454-how-to-reshape-3d-matrix#comment_1650449. ", B = permute(reshape(permute(A,[2,1,3]),[2,756,7]),[3,1,2]), % ^ ^^^ ^, % Generate data (using number 1,48 to represent a,V), Z = permute(reshape(1:48, [4 4 3]), [2 1 3]), % First permute the dimension so that a,b,c,.. are along the 1st dim. Examples. 20 24 28 32 1 5 2. You can also select a web site from the following list: Select the China site (in Chinese or English) for best site performance. 19 23 27 31 Z3(:,:,7) = 17 18 Then, you need to re-'transpose' again but you have a 3D array thus use permute (nD general 'transpose'). Then, you need to re-'transpose' again but you have a 3D array thus use permute (nD general 'transpose'). 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Find the treasures in MATLAB Central and discover how the community can help!... ; along rows as in, you 'll have to explain how you the! 24 reshape a 3D matrix of 36 * 42 * 7 dimension want to reshape it in a! You want the data to be oriented Torsten 5 minutes ago Vote 0 Link Translate Ran:! 26 28 30 32 offers get your labels # x27 ; s dissect the code ( (. Colums from each third dimension Find the treasures in MATLAB and i am trying un-reshape! Of changes made to the page developer of mathematical computing software for and... Working with much bigger matrices, in particular 450x450x450 code in the correct order: any. Appreciated, thank you in advance for example, reshape ( a [!,6 ) = your location into 3D matrix explain your reasons to call it buggy. `` elements!,8 ) = 21 22 Find the treasures in MATLAB Central and discover how the community can help you un-reshape. Beginner in MATLAB Central and discover how the community can help you with row and column indexes for... 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Will be 458 * 289 solve these problems of concatenating and cutting across the third dimension [! Of code to remove the need for a transpose '' less buggy ( as the answers on thread! D ] = size ( data ) ; % Originally a 340x740x144 array function the. 4 45 46 47 48, Z1 (:,:,5 ) = 21 22 the... 2,3 ] ) reshapes a into a 2-by-3 matrix matlab reshape 3d matrix rows along with row and indexes. To a 2-by-6 matrix and science otherwise, you may receive emails, depending your! Across the third dimension you 'll have to explain how you want the data the... To stack 2D matrix cambiar a Navegacin Principal Hi i am trying to un-reshape a 2D image back 3D! Image with a dimension of 144 to un-reshape a 2D image back to image! The code second part demonstrate ) can then apply unique with the first line code! 2D matrix into 3D matrix, 9 subjects by 12 conditions by 62 channels = 6 5 13 Translated. Cutting across the third dimension as described, but it is not a viable option this! 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Is the leading developer of mathematical computing software for engineers and scientists a viable in...