Test if a vector contains a given element. Other MathWorks country Do you want to open this example with your edits? I conducted a small Matlab test to check the speed differential between repmat and tony's trick. For more I want to repeat each element n times to make a long length (x)*n vector. How to find out if an item is present in a std::vector? Site design / logo 2022 Stack Exchange Inc; user contributions licensed under CC BY-SA. If n is a scalar, then all elements of v are repeated n times. The input valArray can be of any MATLAB data type, including a character vector, cell array, or struct. If A is In either case, n must be integer-valued. Accelerating the pace of engineering and science. Home Services Web Development . In the United States, must state courts follow rulings by federal courts of appeals? You would need something like. One way to do this would be to use the recent repelem function that was released in version R2015b where you can repeat each element in a vector a certain amount of times. N=10, time_repmat = 8e-5 , time_tony = 3e-5, N=100, time_repmat = 2.9e-4 , time_tony = 6e-5, N=1000, time_repmat = 0.0302 , time_tony = 0.0058, N=10000, time_repmat = 2.9199 , time_tony = 0.5292. Data Types: single | double | int8 | int16 | int32 | int64 | uint8 | uint16 | uint32 | uint64 | logical | char | string | struct | table | cell | datetime | duration. Choose a web site to get translated content where available and see local events and offers. I want to create another vector that is the repetition of t_vec n types, so that is shows somehting like this: [ion, ion, off, off, off, ion+randn, ion+randn, ioff, ioff, ioff,], with a different value for randn each time, You may receive emails, depending on your. This is a Faster Method Than repmat or reshape by an Order of Magnitude. Based on In this case, specify a vector where every third element is a 2 with the rest of the values being a 1 as the number of times to repeat the corresponding element, then use the function: For example, for n=3, the answer would be: The results show that YES, Tony's-Trick is FASTER BY AN ORDER of MAGNITUDE, especially for larger N. People are welcome to try it themselves. How does the Chameleon's Arcane/Divine focus interact with magic item crafting? Octave / Matlab: Extend a vector making it repeat itself? Using the code mentioned below, I calculated the times for constructing the same tiled vector from a base vector A= [1:N]. Repeat the first two elements of v twice and the last two elements three times. Are the S&P 500 and Dow Jones Industrial Average securities? The basic structure of a for-loop is. Follow 595 views (last 30 days) Show older comments Justin Solomon on 28 Aug 2012 Vote 1 Link Commented: Walter Roberson on 13 Sep 2021 You can also select a web site from the following list: Select the China site (in Chinese or English) for best site performance. Data Types: single | double | int8 | int16 | int32 | int64 | uint8 | uint16 | uint32 | uint64. The input cannot y = repmat(x,1,3); y = transpose(y); y = y(:); Ah, but how do you construct the ind vector for general length n repetitions ? The It can be used for non-vectors too. The strcmp function takes two input arguments (two strings) and returns either true or false, just like any boolean expression. Data Types: single | double | int8 | int16 | int32 | int64 | uint8 | uint16 | uint32 | uint64 | logical | char | struct | table | cell | datetime | duration For more information, see Run MATLAB Functions on a GPU (Parallel Computing Toolbox). QGIS expression not working in categorized symbology. your location, we recommend that you select: . For example, repelem(TA,1,n,p,). Data Types: single | double | int8 | int16 | int32 | int64 | uint8 | uint16 | uint32 | uint64 | logical | char | string | struct | table | cell | datetime | duration Sunrise: 08:14AM. Secondly, one wonders why. We do not currently allow content pasted from ChatGPT on Stack Overflow; read our policy here. Why is apparent power not measured in watts? To repeat a given string N times in JavaScript, use a looping statement like For loop or While Loop to iterate for N times , and concatenate the resulting string with the given string for N times . The results show that YES, Tony's-Trick is FASTER BY AN ORDER of MAGNITUDE, especially for larger N. If n is a vector, then each element of n specifies the number of times to repeat the corresponding element of v.In either case, n must be integer-valued. the simple method that works for small arrays is repmat but I am running out of memory. MathWorks is the leading developer of mathematical computing software for engineers and scientists. CGAC2022 Day 10: Help Santa sort presents! MATLAB: duplicating vector 'n' times [duplicate]. I have a vector t_vec. - MATLAB Answers - MATLAB Central MATLAB Central Home Ask Answer Browse More Trial software Repeat element of a vector n times without loop. Find centralized, trusted content and collaborate around the technologies you use most. be 1. I see lots of assertions about program performance here on SO, very few backed up by evidence. Also, I know, the avg of times could have been a better metric, but I just wanted to show the order of magnitude difference in time consumption between the two approaches. Based on Run MATLAB Functions in Thread-Based Environment, Run MATLAB Functions with Distributed Arrays. The current local time in Tarbes is 49 minutes ahead of apparent solar time. arguments of integer-valued scalars or vectors. information, see Run MATLAB Functions with Distributed Arrays (Parallel Computing Toolbox). The * matrix multiplication operator cannot by itself repeat elements. Is it appropriate to ignore emails from a student asking obvious questions? Data Types: single | double | int8 | int16 | int32 | int64 | uint8 | uint16 | uint32 | uint64 01:2; >> trapz(t,exp(-j*2*pi*f*t)) ans = 4. Have you tried repmat, say. Reload the page to see its updated state. I want to repeat each element n times to make a long length(x)*n vector. - MATLAB Answers - MATLAB Central Repeat element of a vector n times without loop. of A. At what point in the prequels is it revealed that Palpatine is Darth Sidious? This function supports tall arrays with the limitations: The replication factor in the first dimension must Say I have a column vector x=[a;b;c]. length of u is length(v)*n. If n is a vector, then it must be the same length as v. Each element of n specifies Accelerating the pace of engineering and science. Create a vector and repeat each of its elements three times into a new vector. of repeated elements of v. If n is a scalar, then each element When you specify the 'once' option to return only one match, the output is either an m-by-2 numeric array or a cell array with the same dimensions as str and/or expression. an array with each element of A repeated according Find the treasures in MATLAB Central and discover how the community can help you! How should I implement this sum with for loops in matlab, for i = 1:20 , N = 20 and is a vector, I have to avoid [0] so should I write a for loop, for each R? Web browsers do not support MATLAB commands. Repetition factors for each dimension (as separate arguments). differential equations input derivative MATLAB ode45 I have a simple equation I'd like to solve: Fdot = udot - b0* (F - u), where u is a time varying input, F is the variable I'm solving for, and b0 is a scalar constant. You can also select a web site from the following list: Select the China site (in Chinese or English) for best site performance. the corresponding dimension. Day length: 9h 11m. Reload the page to see its updated state. Complex Number Support: Yes. Why is Java Vector (and Stack) class considered obsolete or deprecated? Other MathWorks country https://la.mathworks.com/matlabcentral/answers/362996-repeat-vector-n-times, https://la.mathworks.com/matlabcentral/answers/362996-repeat-vector-n-times#answer_287503. For example v = [ 1, 2, 7, 8, 3, 2, 8]. B = repelem(A,r1,,rN) returns If n is a scalar, then all elements of v are repeated n times. Data Types: single | double | int8 | int16 | int32 | int64 | uint8 | uint16 | uint32 | uint64 How is the merkle root verified if the mempools may be different? Generate CUDA code for NVIDIA GPUs using GPU Coder. Have a look at what the size of your vector is and compare the methods. Sunset: 05:25PM. Follow 631 views (last 30 days) Show older comments Justin Solomon on 28 Aug 2012 Vote 1 Link Commented: Walter Roberson on 13 Sep 2021 Accepted Answer: Azzi Abdelmalek Say I have a column vector x= [a;b;c]. be a multidimensional array. When you found something to even improve it, please tell me. In either case, n must be integer-valued. For example, if A is Number of times to repeat each element, specified as a scalar I conducted a small Matlab test to check the speed differential between repmat and tony's trick. Repetition factors for each dimension, specified as separate Lets say, you want to tile the row vector r=[1 2 3] N times like r=[1 2 3 1 2 3 1 2 3], then. I want to repeat this vector multiple times. To build block arrays by forming the tensor product of the input with an array of ones, use kron.For example, to stack the row vector A = 1:3 four times vertically, you can use B = kron(A,ones(4,1)).. To create block arrays and perform a binary operation in a single pass, use bsxfun.In some cases, bsxfun provides a simpler and more memory efficient solution. a matrix, repelem(A,2,3) returns a matrix containing You must create a License File, named license. Below I compare speeds and it appears that on my computer the third and fourth methods are mostly faster for large arrays. How can I find how many times each element in this vector is repeated without using a loop. How to use Randperm function in MATLAB ,randperm(n) returns a row vector containing a random permutation of the integers from 1 to n without . Has anyone found Lamp enable and disable in appdesigner; How to stop image auto resize after using imcrop; The sample code to repeat a given string str for N times using For Loop and store the output in result is. I have a 1x500 cell of words that have variable length. of v are repeated n times. Repmat and Reshape are usually found to be slower than Tony's trick as it directly uses Matlabs inherent indexing. Consider a vector in MATLAB, where some elements are repeated. Help us identify new roles for community members, Proposing a Community-Specific Closure Reason for non-English content, How to efficiently construct a matrix in matlab that depends on indices, Assign an entire row to multiple rows of another matrix in matlab. I can't see myself using Tony's Trick regularly but then I don't use repmat much, and now I know where to look if I ever find repmat too slow. Input element, specified as a scalar or a vector. One of the best methods for doing such things is Using Tony's Trick. Maison Natale Ferdinand Foch is a must to visit before tasty meals at this restaurant. of v is repeated n times. For example: words = {'SO','TODAY', 'IS', 'THURSDAY',.} number of times to repeat the corresponding element of v. Should I give a brutally honest feedback on course evaluations? Based on Abhinav's answer and some tests, I wrote a function which is ALWAYS faster than repmat()! My machine/os details are given below : Relevant Machine/OS/Matlab Details : Athlon i686 Arch, Ubuntu 11.04 32 bit, 3gb ram, Matlab 2011b. Unable to complete the action because of changes made to the page. rev2022.12.9.43105. Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide, Firstly; What?! It uses the same parameters, except for the first parameter which must be a vector and not a matrix. It is similar to the colon operator ":", but gives direct control over the number of points. You can also select a web site from the following list: Select the China site (in Chinese or English) for best site performance. 4, is represented by one block, i. I know I could do the following: This seems a little cumbersome though. If v is a column vector, u is The input must be a vector or matrix. You have a modified version of this example. Unable to complete the action because of changes made to the page. matlab Share Cite Follow edited Feb 21, 2016 at 14:25 gebruiker 6,072 5 25 73 asked Feb 21, 2016 at 12:46 Rosa Other MathWorks country sites are not optimized for visits from your location. ], with a different value for randn each time Theme Copy ton=2; toff=3; ion=0.7; ioff=-6; t_vec1 (1:ton)=ion+randn; t_vec1 (ton+1:ton+toff)=ioff; Not the answer you're looking for? MATLAB Language Fundamentals Matrices and Arrays repmat On this page Syntax Description Examples Initialize Matrix with Same Element Value Square Block Format Rectangular Block Format 3-D Block Array Vertical Stack of Row Vectors Horizontal Stack of Column Vectors Tabular Block Format Input Arguments A n r1,.,rN r Tips Extended Capabilities Excellent answer: a statement about program performance backed up by evidence. Depending on your end usage, you may want to consider using a cell array of strings instead: Output = repmat ( {A},X,1); Share Improve this answer Follow edited Mar 7, 2014 at 19:02 Doresoom 7,368 14 46 61 answered Mar 7, 2014 at 18:57 DaveH If n is a vector, then each element of n specifies the number of times to repeat the corresponding element of v . I want to create another vector that is the repetition of t_vec n types, so that is shows somehting like this: [ion, ion, off, off, off, ion+randn, ion+randn, ioff, ioff, ioff,. for i=1:1:20 R (i) =symsum(e(k)-e(k-i),k+i,0,N); end either be a scalar or a vector with the same length as A in a table, each repetition factor must be a scalar. Number of times to repeat each element, specified as a scalar or a vector. Repeat element of a vector n times without loop. U can use repmat it not exactly elegant but it will do the job, newx = [repmat(x(1),n,1);repmat(x(2),n,1);repmat(x(3),n,1)]. a 2-by-3 block of each element a row vector. For The input must be a vector or matrix. This much time differential can be critical if such an operation has to be performed in loops. Is it correct to say "The glue on the back of the sticker is dying down so I can not stick the sticker to the wall"? I would like to duplicate it within itself n times, i.e. Try montage(). Find the treasures in MATLAB Central and discover how the community can help you! I want to repeat each element n times to make a long length (x)*n vector. For example, for n=3, the answer would be: Can anyone think of an elegant way to do this without looping? Is there any MATLAB command for this? Using the code mentioned below, I calculated the times for constructing the same tiled vector from a base vector A=[1:N]. Is this an at-all realistic configuration for a DHC-2 Beaver? or a vector. Output array, returned as a matrix or multidimensional array. Calculate with arrays that have more rows than fit in memory. If nis a vector, then each element of nspecifies the In either case, nmust be integer-valued. Taste tasty parfait, tiramisu and gteau.. It's easy to find this spot due to its great location. a vector, then each element of n specifies the https://www.mathworks.com/matlabcentral/answers/362996-repeat-vector-n-times, https://www.mathworks.com/matlabcentral/answers/362996-repeat-vector-n-times#answer_287503. I want to create another vector that is the repetition of t_vec n types, so that is shows somehting like this: [ion, ion, off, off, off, ion+randn, ion+randn, ioff, ioff, ioff,], with a different value for randn each time, You may receive emails, depending on your. This function fully supports GPU arrays. I have a vector t_vec. multidimensional array. In addition, I have two 500x1 arrays of integers, the first contains numbers referring to the starting row, the second contains numbers referring to the end row. How can I use a VPN to access a Russian website that is banned in the EU? n = 2; t_vec = [ion ion ioff ioff ioff]; repmat(t_vec,1,n) HTH. Unable to complete the action because of changes made to the page. to r1,,rN. You will be served French cuisine at Le Patati.Have good goat salads, hamburgers and salmon tartare at this place when you happen to be near it. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. You clicked a link that corresponds to this MATLAB command: Run the command by entering it in the MATLAB Command Window. offers. MATLAB model for equalizer using LMS algorithm adaptive filter and unexpected output curve 0 The MATLAB code below is for equalizer . I want to repeat each element n times to make a long length(x)*n vector. To answer you question. If you want to repeat n times vec=1:5 n=10; out=repmat (vec,n,1); out=out (:)'; Jan on 25 Nov 2012 0 Link While I'd prefer Matt Fig's approach in real programs, here another approach, which might be interesting: vec = 1:5; n = 2; index = zeros (1, length (vec) * n); index (1:n:end) = 1; index = cumsum (index); result = vec (index); https://www.mathworks.com/matlabcentral/answers/46898-repeat-element-of-a-vector-n-times-without-loop, https://www.mathworks.com/matlabcentral/answers/46898-repeat-element-of-a-vector-n-times-without-loop#comment_328477, https://www.mathworks.com/matlabcentral/answers/46898-repeat-element-of-a-vector-n-times-without-loop#answer_57312, https://www.mathworks.com/matlabcentral/answers/46898-repeat-element-of-a-vector-n-times-without-loop#comment_96563, https://www.mathworks.com/matlabcentral/answers/46898-repeat-element-of-a-vector-n-times-without-loop#comment_96568, https://www.mathworks.com/matlabcentral/answers/46898-repeat-element-of-a-vector-n-times-without-loop#comment_96572, https://www.mathworks.com/matlabcentral/answers/46898-repeat-element-of-a-vector-n-times-without-loop#answer_200940, https://www.mathworks.com/matlabcentral/answers/46898-repeat-element-of-a-vector-n-times-without-loop#comment_1336387, https://www.mathworks.com/matlabcentral/answers/46898-repeat-element-of-a-vector-n-times-without-loop#answer_57314, https://www.mathworks.com/matlabcentral/answers/46898-repeat-element-of-a-vector-n-times-without-loop#comment_261484, https://www.mathworks.com/matlabcentral/answers/46898-repeat-element-of-a-vector-n-times-without-loop#comment_443963, https://www.mathworks.com/matlabcentral/answers/46898-repeat-element-of-a-vector-n-times-without-loop#comment_650023, https://www.mathworks.com/matlabcentral/answers/46898-repeat-element-of-a-vector-n-times-without-loop#comment_650517, https://www.mathworks.com/matlabcentral/answers/46898-repeat-element-of-a-vector-n-times-without-loop#answer_57356, https://www.mathworks.com/matlabcentral/answers/46898-repeat-element-of-a-vector-n-times-without-loop#comment_261485, https://www.mathworks.com/matlabcentral/answers/46898-repeat-element-of-a-vector-n-times-without-loop#comment_1732694, https://www.mathworks.com/matlabcentral/answers/46898-repeat-element-of-a-vector-n-times-without-loop#answer_57336, https://www.mathworks.com/matlabcentral/answers/46898-repeat-element-of-a-vector-n-times-without-loop#answer_237166, https://www.mathworks.com/matlabcentral/answers/46898-repeat-element-of-a-vector-n-times-without-loop#answer_237167, https://www.mathworks.com/matlabcentral/answers/46898-repeat-element-of-a-vector-n-times-without-loop#comment_444032. Small improvement: transposition of the matrix. where v is a scalar or vector, returns a vector Connect and share knowledge within a single location that is structured and easy to search. MathWorks is the leading developer of mathematical computing software for engineers and scientists. 393 views (last 30 days) Show older comments Justin Solomon on 28 Aug 2012 1 Link Translate Commented: Walter Roberson on 13 Sep 2021 Accepted Answer: Azzi Abdelmalek Say I have a column vector x= [a;b;c]. u = repelem(v,n), Thanks, Justin Accepted Answer Azzi Abdelmalek on 28 Aug 2012 15 Link Repeat element of a vector n times without loop. Other MathWorks country Accelerating the pace of engineering and science, MathWorks es el lder en el desarrollo de software de clculo matemtico para ingenieros, I have a vector t_vec. Feel free to test the function with all your data and give me feedback. MATLAB: How to display images. How many transistors at minimum do you need to build a general-purpose computer? Using the kronecker is a known idiom for duplicating data. In MATLAB the array indexing starts from 1. I am sure, the time difference between the two methods will be even more significant for N=100000. the number of times to repeat the corresponding element of v. This syntax is not supported for table input. sites are not optimized for visits from your location. I want to create another vector that is the repetition of t_vec n types, so that is shows somehting like this: [ion, ion, off, off, off, ion+randn, ion+randn, ioff, ioff, ioff,. The gradient (or gradient vector field) of a scalar function f(x 1, x 2, x 3, , x n) is denoted f or f where denotes the vector differential operator, del.The notation grad f is also commonly used to represent the gradient. Matlab rank values in vector with elements repeated multiple times Matlab vector times cell array Duplicating a 2d matrix in matlab along a 3rd axis MANY times for loop in matlab storing values (scalar times vector array) score:4 Based on Abhinav's answer and some tests, I wrote a function which is ALWAYS faster than repmat ()! sites are not optimized for visits from your location. more information, see Run MATLAB Functions in Thread-Based Environment. Partition large arrays across the combined memory of your cluster using Parallel Computing Toolbox. Choose a web site to get translated content where available and see local events and If v is a row vector or scalar, u is I know, these times might be different for different machines, but the relative difference in order-of-magnitude of times will stand. This function fully supports distributed arrays. What's the \synctex primitive? Accelerate code by running on a graphics processing unit (GPU) using Parallel Computing Toolbox. You can first replicate your matrix using my vectorized answer to the previous question: >> mat = [2009 3; 2010 2]; >> index = zeros (1, sum (mat (:, 2))); >> index ( [1; cumsum (mat (1:end-1, 2))+1]) = 1; >> Ansmat = mat (cumsum (index), :) Ansmat = 2009 3 2009 3 2009 3 2010 2 2010 2 Why does my stock Samsung Galaxy phone/tablet lack some features compared to other Samsung Galaxy models? Number of times to repeat each element, specified as a scalar or a vector. There is several others ways of doing it which in some cases are more efficient. Complex Number Support: Yes. offers. Find the treasures in MATLAB Central and discover how the community can help you! Output vector. Based on If n is 0 or negative, the result is an empty array. offers. Reload the page to see its updated state. ], with a different value for randn each time ton=2; toff=3; ion=0.7; ioff=-6; t_vec1 (1:ton)=ion+randn; t_vec1 (ton+1:ton+toff)=ioff; This function fully supports thread-based environments. creating a vector that repeats a number 360 times - MATLAB Answers - MATLAB Central creating a vector that repeats a number 360 times Follow 1,417 views (last 30 days) Show older comments Ruben Alfaro on 9 May 2014 Vote 3 Link Edited: Pradeep Punniyakotti on 27 Mar 2018 If n is a scalar, then all elements For example, for n=3, the answer would be: Theme ans= a a a b b b c c c Can anyone think of an elegant way to do this without looping? This is more efficient than KRON. MATLAB - Remove Leading and Trailing Zeros From a Vector, MATLAB: Identify if a value is repeated sequentially N times in a vector, TypeError: unsupported operand type(s) for *: 'IntVar' and 'float', Examples of frauds discovered because someone tried to mimic a random sequence. n Number of times to repeat each elementscalar| vector Number of times to repeat each element, specified as a scalar or a vector. Always faster? Would salt mines, lakes or flats be reasonably found in high, snowy elevations? I have a vector t_vec. var result = ""; var N = 4; for (let i=0; i. Input array, specified as a matrix or multidimensional array. You may receive emails, depending on your. your location, we recommend that you select: . Where is it documented? if n = 3, it would end up as: How can I achieve this for any value of n? Any more efficient methods? Generate C and C++ code using MATLAB Coder. Choose a web site to get translated content where available and see local events and also a column vector. Accelerating the pace of engineering and science. Accepted Answer: Azzi Abdelmalek Say I have a column vector x= [a;b;c]. MATLAB: Repeat vector n times. You can also select a web site from the following list: Select the China site (in Chinese or English) for best site performance. A % Matlab's command line is a little like a standard shell: % - Use the up arrow to recall commands without retyping them (and % down arrow to go forward in the command history). Say I have a column vector x=[a;b;c]. If nis a scalar, then all elements of vare repeated ntimes. Based on your location, we recommend that you select: . MathWorks is the leading developer of mathematical computing software for engineers and scientists. The elements in an array can be accessed by an index number and it starts from 0. repeat n times vector with name index Follow 12 views (last 30 days) Show older comments charles aouad alrededor de 6 horas ago 0 Link Translate Commented: Stephen23 alrededor de 2 horas ago i hope someone can help me i need to repeat these 4 lines of code n times with the variable {i} changing from 1 until n E {i}=trapz (days,D {i}); Solar noon: 12:49PM. Use the repmat function: A = ['12 N']; X = 5 Output = repmat (A, X, 1); will result in a character array. Choose a web site to get translated content where available and see local events and Sunrise, sunset, day length and solar time for Tarbes. n Number of times to repeat input array in row and column dimensions integer value Number of times to repeat the input array in the row and column dimensions, specified as an integer value. I'll leave you to check the documentation for repmat. However, because there is a derivative of the input involved, I'm not sure how to handle it in ode45. Create a matrix and repeat each element into a 3-by-2 block of a new matrix. sites are not optimized for visits from your location. Well, I admit that even reading this message will waste more time then millions of matrix transpositions will cost why you did not use outer product and you chosen kronecker ( just curious ) because the guy's question was having vectors ? if you wanted to use the * operator to duplicate elements -- forcing you to call upon repmat() to duplicate elements. This method has significant time savings against reshape or repmat for large N's. Ready to optimize your JavaScript with Rust? A bouncing ball model is a classic example of a hybrid dynamic system Yes I have simulated missile trajectories in matlab and I currently work on optimal and robust methods applied to aerospace structures Automatica, 77:112-119, March 2017 Taking Variables from MATLAB Where To Download Matlab Code For Trajectory . Here is the small script I used; The Times (in seconds) for both methods are given below; My RAM didn't permit me to go beyond N=10000. your location, we recommend that you select: . This restaurant has delicious port wine among its drinks. Did the apostolic or early church fathers acknowledge Papal infallibility? The input cannot be a The gradient of f is defined as the unique vector field whose dot product with any vector v at each point x is the directional derivative of f along v. Related Question. When the index to a vector is a boolean vector of the same length as the vector, then MATLAB can use that boolean result to index it. Examples collapse all Assign Matrix Values Copy Command Create a Hilbert matrix of order 10. s = 10; H = zeros (s); for c = 1:s for r = 1:s H (r,c) = 1/ (r+c-1); end end Decrement Values Step by increments of -0.2, and display the values. If n is MATLAB represents a text string as an row vector of characters (char data type), where each character is stored in 2 bytes of memory. Each r1,,rN must Repeat element of a vector n times without loop. Can we see some numbers, cross-platform/OS/vector size/etc.? Best coding solution for query repeating a vector many times without repmat MATLAB. Create a matrix and copy its columns into a new array, repeating the first column twice and second column three times.
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