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Start matlab and use cd to change directory (i. The peak value is defined as the local maxima (or you can say peak element is the element which is greater than or equal to both of its neighbours. Digital Image Processing Using Matlab 40 Spatial Filtering • Move a “mask”: a rectangle (usually with sides of odd length) or other shape over the given image. I have the data in the form of gray levels (only 1 and 0 for dark and bright pixels) in a 3D array. The best way to learn what Matlab can do is to work through some examples at the computer. For some tasks, C++ executes hugely faster than Matlab m-code, and you can also access features in Numerical Recipes (or elsewhere) that are not available in Matlab. Modify the function NewtonRoot that is listed in Fig. I use unique accumarray to get mean of the values of second column relative to each unrepeated number in column A. I am analyzing a dataset with one within variable (Xw1) and one between variable Xb1. These indexing tricks come in handy to avoid "for" loops and in vectorizing code. Learn more about find, sort, array MATLAB. Forums More Forums matlab. If the number IS repeated, I want to store that number into a matrix. however, if you use: hist(a,b), then the repetitions are counted against the reference (b). Learn more about duplicates. Divide by the local mean to normalize the data and the signal. A vector is a one-dimensional array and a matrix is a two-dimensional array. M G %In this example, it retrieves the cell location which contains the value 21. Community Home;. MATLAB is a technical and mathematical analysis platform produce by MathWorks. I don't understand the mathematical meaning of mse value in lscov function for matlab. Community Home;. Finding the indices of duplicate values in one Learn more about duplicate values MATLAB. In this section we will solve systems of two linear differential equations in which the eigenvalues are distinct real numbers. The data for this example is a list of people's names. Each m-file contains exactly one MATLAB function. sort Sort in ascending order. what i want is: like 1 is repeated 2 timesnow add the respective values from column 2 i. Find all peak elements in it. Divide by the local mean to normalize the data and the signal. In conclusion, it is not a bug to find duplicate values in a moderately sized sample of uniformly distributed values. In response to posters above, I did not find a Matlab repeated measures ANOVA package that satifactorily handles longitudinal data, I think repeated measures ANOVA is better suited for a relatively small number of categorical factors rather than longitudinal data. Find the largest value in an array. The 'find' command only returns the indices of all the non-zero elements of a matrix. e 22 and 88 and add them and divide by 2(because 1 is occuring 2 times). Open Mobile Search. Question-Solved Finding the indices of the nearest values of a matrix to a desired value (self. If the number IS repeated, I want to store that number into a matrix. Some of the tricks below come from newsreader. Learn more about matrix, matrix manipulation, array, cell arrays, matlab function. Learn more about find, sort, array MATLAB. Finding index of repeated component in vector. The axis along which to repeat values. But this MODE function does not work with text strings. But, I want to assign the value which is more repeated to the center value. How do I print (output) in Matlab? There are three common ways: Type the name of a variable without a trailing semi-colon. 2 ASSIGNMENT Assignment refers to assigning values to variable names. The cellstr function converts a character array into a cell array of strings. If none are found, find returns an empty, 0-by-1 matrix. Arthur, with your new array A = [29892, 29051, 29051], my code still works. find all elements in the array a that has value 1 or 2). When Matlab reads the for statement it constructs a vector, [1:4], and j will take on each value within the vector in order. These values are returned in cell arrays. To fit a functional form (1) take the logarithm of both sides (2) The best-fit values are then (3) (4) where and. There are various mathematical trace operations, many of which you can easily execute with a few lines of MATLAB code. MATLAB is a high-level language that helps engineers and scientists nd solutions for given problems with fewer lines of codes than traditional programming languages, such as C/C++ or Java, by utilizing built-in math functions. MATLAB will do its best, although the result may take some space if the variable is a large matrix. Find the most common value (number or text string) from a list with Array Formula. The value that x takes on in any one roll or coin toss has a known probability. 3-11, such that the output will have three arguments. For loops require explicit values in order to function. First download the data file into a file called data. Learn more about matrix, matrix manipulation, array, cell arrays, matlab function. C = textscan(fid, 'format') reads data from an open text file identified by file identifier fid into cell array C. The matrix can be of class double , in which case it contains values in the range [0,1], or of class uint8 , in which case the data range is [0,255]. But many of our designs use a repeated measures variable than is not ordinal. arima is very similar to arima0 for ARMA models or for differenced models without missing values, but handles differenced models with missing values exactly. To highlight unique or duplicate values, use the Conditional Formatting command in the Style group on the Home tab. Start matlab and use cd to change directory (i. Find and match multiple values in a matrix with MATLAB's ismember function I was preparing some results of an image segmentation algorithm for publishing and needed a way to find all pixels that match a variable set of multiple numbers (e. Name the function [Xs,FXs,iact] = NewtonRootMod(Fun,FunDer,Xest,Err,imax). How to Find Duplicates in Excel. Arthur, with your new array A = [29892, 29051, 29051], my code still works. Although having well-written functions can seem somewhat subjective, there are objective cri. MATLAB command window, or more usefully, as function m-files which can be saved for repeated use. find Find indices of nonzero elements. But, I want to assign the value which is more repeated to the center value. If the function only requires one line of code to write, you can put the anonymous function that does the calculation directly in the fzero command. I am aware of frequent customer requests for replacing multiple values in an array. 1 Introduction. I would like to find the values common to all 7 field names (columns). This does not work in MATLAB 2006b. MATLAB Tutorial - LOOPING, IF STATEMENTS, & NESTING ES 111 2/6 The function takes a as an input. Thus, a collection of MATLAB functions can lead to a large number of relatively small files. Once your loop finishes, you have all the values of x and y stored in x (1:end) and y (1:end). The underlying probabilities (as encountered in the familiar "birthday matching problem") show that this behavior is correct. There is a critical difference, however: When you filter for unique values, the duplicate values are only hidden temporarily. In this section we will solve systems of two linear differential equations in which the eigenvalues are real repeated (double in this case) numbers. The Matlab programming language supports it, so a function can call itself during its own execution. Field name 2 has 17000 valuesfield name 7 has 6000 values, etc. Matlab vectorisation tricks. In cases when there are multiple duplicates with a 1 then it needs to keep randomly only one variable. Note: this is a made-up example, because you would never randomly look into an array to find a value. We can also sum the x values we obtain across events. Create a MATLAB program consisting of the MATLAB code of Figure 3. This screencast is all about arrays -- what they are, how to access and modify individual elements and "slices" of an array, how to add rows and columns to a matrix, and the RESHAPE and transpose. Solution and logic shown in this article are generic and applies to an array of any type e. 1BestCsharp blog 5,858,794 views. ; either the entry doesn't exist in the language, and please tell so. Learn more about matrix array, array, matlab, matrix manipulation I thought you only wanted to flag the repeated values. Of course, with so many points, this might get a bit tedious. It's like looping over each element but more compact. Open Mobile Search. I have a matrix with repeated values in the 1st column, for example:. Take for example 0 @ 3 1 2 3 1 6 2 2 2 1 A One can verify that the eigenvalues of this matrix are = 2;2; 4. Choose a web site to get translated content where available and see local events and offers. You can use MATLAB's smart indent feature (Text-> Smart Indent or Ctrl-I) to automatically indent selected code for you. the function can compare two matrix, find the location of certain values in one matrix, then find the corresponding values in the second matrix based on the location found. When you assign a value to a variable its previously assigned value will be overwritten. Null and duplicate values are counted. Octave and Matlab users who must collaborate with each other need to take note of these issues and program accordingly. Sign in to comment is not valid Matlab. You can use the built in functions (max and min) on these vectors directily: [m mindex]=max (y); mx=x (mindex); I haven't found a better way to do this, but you can repeat the code using min,. Mod Function in MATLAB. Since there are n values from 1 to n -1 with one duplicate, we can use the fact that the sum of the integers from 1 to m is ( m *( m +1))/2, take the sum from 1 to n -1, subtract that from the actual sum of numbers in the array, and the result will be the. In particular, we add to our initial guess (theta0=1) a random number extracted from a standard normal distribution (randn(1,1)), multiplied by 10. I use unique accumarray to get mean of the values of second column relative to each unrepeated number in column A. FINDING ROOTS OF EQUATIONS Root finding is a skill that is particularly well suited for computer programming. For samples of size 77,000 or more, duplicate values are expected. And the result should be compact code and execute quickly, Inverse Mapping from Values to Indices » Loren on the Art of MATLAB - MATLAB & Simulink. Please do as this:. Consider a vector in MATLAB, where some elements are repeated. Question-Solved Finding the indices of the nearest values of a matrix to a desired value (self. 00001]) truncates the second element of the input array. If you need to get the first text value in a list (a one-column range) you can use the VLOOKUP function set to exact match, with a wildcard character for the lookup value. In mathematics and computing, a root-finding algorithm is an algorithm for finding zeroes, also called "roots", of continuous functions. MATLAB Tutorial - Roots of Equations ES 111 1/13 FINDING ROOTS OF EQUATIONS Root finding is a skill that is particularly well suited for computer programming. matlab) submitted 2 years ago by Scrin98 Hello people, this was a part of a exercise that I was doing and I couldn't get it to work. Finding the indices of duplicate values in one Learn more about duplicate values MATLAB. Another was to say "root. MATLAB Answers. Again, I know what a mask is, I see we are looking for NaN values after division by 0, so we'll find the zeros, convolve to get the neighbors of the zeros, and find the maximum of those. then a tolerance can be set by using the matlab "round" function to the decimal places you wish. so when you count the occurrences of each element in (a) against. Learn more about matrix, matrix manipulation, array, cell arrays, matlab function. Vector Functions. We can also sum the x values we obtain across events. This step is repeated until the diameter of the simplex is less than the specified tolerance. Start matlab and use cd to change directory (i. Many problems present themselves in terms of an eigenvalue problem: A·v=λ·v. In the case of a for loop, the commands are executed a fixed number of times, whereas in a while loop the commands are executed until some specified condition is met. In addition I would like the number of days to be equal in each month so if we have 10 values greater than 30 in month 1 and then only 5 values greater than 30 in month 2 then we should only take the first 5 values greater than 30 in both months. Arnold Ordinary Differential Equations Using MATLAB - Free ebook download as PDF File (. Find repeated close values in array. com and the Mathworks site. Polynomial Roots - 'Zero finding' in Matlab To find polynomial roots (aka ' zero finding ' process), Matlab has a specific command, namely ' roots '. Choose a web site to get translated content where available and see local events and offers. Matlab only supports single quotes, which means parsing errors will occur if you try to use double quotes (e. There are a surprising number of things that can be done by just indexing into a Matlab array. Learn more about duplicate values, matrices. Principal Component Analysis (PCA),. Unique Values Without Rearrangement 4 Posted by Loren Shure , November 26, 2009 In MATLAB, the simplest form of the function unique returns the unique values contained in a numeric vector, with the results sorted. This is because the singular value decomposition of A r is A r = U S V T, where V and U are square orthogonal matrices of different sizes and S is a matrix of the same size as A r whose diagonal entries are the singular values of A s with extra rows or columns of zeros depending on the size of A r. Need to remove repeated adjacent elements in an array. For example, when dividing 17 by three, the remainder of two could be more important to know than the integer quotient of five. I need to create a function that counts the duplicate values in the array and print like this i. I would like to find the values common to all 7 field names (columns). First download the data file into a file called data. unique gives all values that occur in the vector/matrix, which is about the opposite of what you want. Loops can be used to repeat. how to find repeated value in a matrix?. Assume that the first element is the largest value in the array and store it into a variable called Largest. What should I do instead if I want matched_dates to have repeated values. Learn more about matrix, matrix manipulation, array, cell arrays, matlab function. Finding Duplicate Values per Column. The peak value is defined as the local maxima (or you can say peak element is the element which is greater than or equal to both of its neighbours. sort Sort in ascending order. [email protected] Using the MATCH function in Excel - find a match in a list without duplicates. I haven't found a better way to do this, but you can repeat the code using min, then compare the absolute values and choose the min or max. manuals so I won’t repeat here what they say, but I strongly encourage the reader to type help ops at the command prompt and take a look at the list of operators, functions and special characters, and look at the associated help pages. You can then find out what indices are missing to find the repeated values. For samples of size 77,000 or more, duplicate values are expected. Repeat matrix: [ a a a ; a a a ] Vector of non-zero values: which(a>5. I clearly could not see why at the time until I thought of this:. MATLAB can plot a 1 x n vector versus an n x 1 vector, or a 1 x n vector versus a 2 x n matrix (you will generate two lines), as long as n is the same for both vectors. In this section we will solve systems of two linear differential equations in which the eigenvalues are distinct real numbers. Introduction The Matlab programming language is parsed, code is interpreted in realtime. end Last index in an indexing expression. The within variable (Xw1) are repeated measures for each individual in a group. matlab) submitted 3 years ago by andresni I have an array nxn with values generated by a simulation. In cases when there are multiple duplicates with a 1 then it needs to keep randomly only one variable. Frahm, "Correcting for Duplicate Scene Structure in Sparse 3D Reconstruction", ECCV 2014. A mathematical set contains no more than one of each member in the set, so you’ll need to decide if the return value of your operation should also be a set or possibly contain repeated values. Change or remove duplicate matrix elements. Tag: matlab,matrix. What should I do instead if I want matched_dates to have repeated values. I have been trialing with Index, Match, Vlookup, and Row and keep failing even with a helper column Countif because I have duplicate values :( Checked out these old threads as well and have not been able to replicate the correct results. For loops require explicit values in order to function. But, I want to assign the value which is more repeated to the center value. In general, find(X) regards X as X(:), which is the long column vector formed by concatenating the columns of X. These conversion specifiers determine the type of each cell in the output cell array. I have a cell 22124x1 and it contain duplicate Values, I want to know how many times these values duplicate and their index. 22nd Annual DoD/DOE Seismic Research Symposium: Planning for Verification of and Compliance with the Comprehensive Nuclear-Test-Ban Treaty (CTBT): Proceedings II antolik01 0 102 Arenas, C. One of the thousands of built-in functions in the mathematical software program MATLAB is. value1 is a calculated value in my program. double, roots. I don't understand the mathematical meaning of mse value in lscov function for matlab. Hi, I cannot return each corresponding fruit to each largest price in below table. 15) then the simple if-else statement was still evaluating value1 > value2 value. Return value An iterator to the first element in the range that compares equal to val. I use unique accumarray to get mean of the values of second column relative to each unrepeated number in column A. When working with a Microsoft Excel spreadsheet with lots of data, you'll probably encounter duplicate entries. I need to create a function that counts the duplicate values in the array and print like this i. Operations on vectors using a loop 8. Find the largest value in an array. Microsoft Excel's Conditional Formatting feature shows you exactly where duplicates are, while. I have a very large matrix (901x1801) which I generated by combining values of three similar arrays (with repeated values in them) to generate unique codes using a mathematical expression. Need to remove repeated adjacent elements in an array. MATLAB 다운로드. Below is an example for a simple 1D case. Repeated Eigenvalues Occasionally when we have repeated eigenvalues, we are still able to nd the correct number of linearly independent eigenvectors. matlab code forecasting using pso Abstract Load forecasting has become a very crucial technique for the efficient functioning of the power system. Learn more about replace indexes, duplicates, find duplicates, identify duplicates, replace duplicates. Strictly it could be a list of other objects than numbers but "list of numbers" will fit our needs for now. First download the data file into a file called data. If none are found, find returns an empty, 0-by-1 matrix. Many problems present themselves in terms of an eigenvalue problem: A·v=λ·v. "Randomly look in an array for a given value. for example, matched Discover what MATLAB. I have a cell 22124x1 and it contain duplicate Values, I want to know how many times these values duplicate and their index. pdf), Text File (. Octave and Matlab users who must collaborate with each other need to take note of these issues and program accordingly. Matlab vectorisation tricks. Dear experts, I have a list of variables where I need te remove duplicate variables. Please do as this:. If the number IS repeated, I want to store that number into a matrix. com and the Mathworks site. In particular, we add to our initial guess (theta0=1) a random number extracted from a standard normal distribution (randn(1,1)), multiplied by 10. Instead, we need a command that plots values on a log scale. Find values in an a matrix. For example: If a range, such as A2:D20, contains the number values 5, 6, 7, and 6, then the number 6 occurs two times. Learn more about interp1, interpolation, intersection, find x, logarithmic, log10 MATLAB Answers. Open Mobile Search. I'm fairly new to programming in general and MATLAB and I'm having some problems with removing values from matrix. The class of M is the same as the class of the input array, A. We will use reduction of order to derive the second solution needed to get a general solution in this case. Matlab is a powerful mathematical tool and this tutorial is intended to be an introduction to some of the functions that you might find useful. The functions included in MATLAB can provide your business with world-class analysis capability without the need to develop your own software. To do so in MATLAB, we should add the. While Matlab may not be as fast as C, there are ways to bring it closer. Though knnsearch is the best way to do it as mentioned in one of the answers, it can be done with sortrows as well; and this method is not as good as knnsearch. com and the Mathworks site. "Randomly look in an array for a given value. I would like to find the values common to all 7 field names (columns). If the value of value1 = value2 (for example: value1 = 1. Learn more about matrix, matrix manipulation I try to use unique to find where the repeated rows are, Discover what MATLAB. What if there are multiple repeated values. With those repeated values I'd like to average the associated data in column 2. This example looks at how to use the MATCH function if your list doesn't contain any duplicates. How to get exact number for repeated eigenvalue in MATLAB and R. In this section we will solve systems of two linear differential equations in which the eigenvalues are real repeated (double in this case) numbers. double, roots. You can at any time find out the actual value of a variable simply by writing the variable name in the command window (without ;). for example; array1 = [1 1 1 1 1 0 0 0 0 0]; array2. I have a 180 x 2 array of data and in the first column there are some repeated values (multiple data points at the same location). How to Find Trace on MATLAB. If one is fortunate enough to have the MATLAB Statistics Toolbox available, the tiedrank function is very handy for this sort of thing. Before trying to find all of the roots of this function in MATLAB I think it's worth understanding that it has infinitely many roots due to the inclusion of the $\cos()$ term. 5) Condition, indices MATLAB/Octave Description. if you use: hist(a), matlab will divide the whole range of values to 10 periods, and count the repetitions of values lying within these ranges. If you forget which one is which, you can get more information by typing help eig at the matlab prompt. Open Mobile Search. To remove duplicate values, click Data > Data Tools > Remove Duplicates. Replace the indexes of duplicate values. We will also show how to sketch phase portraits associated with real distinct eigenvalues (saddle points and nodes). These conversion specifiers determine the type of each cell in the output cell array. The values are are integers that represent event IDs. indices = find(X, k) or indices = find(X, k, 'first') returns at most the first k indices corresponding to the nonzero entries of X. I want to find indices of repeating (duplicate) values. The "Unknown:"s below indicate that an entry is incomplete. MATLAB - Find repeated values in a column and extract values from that row. The table tag displays information in rows and columns. I want to write a general program to find the eigenvalues for any matrix by using eigenvalues equation in matlab program,how i can write please give me some suggestion. Watson Research Center Hawthorne, NY, 10532 Tutorial | Time-Series with Matlab 2 About this tutorial The goal of this tutorial is to show you that time-series research (or research in general) can be made fun, when it involves visualizing ideas, that can be achieved with. unique gives all values that occur in the vector/matrix, which is about the opposite of what you want. A Quick Introduction to Loops in Matlab Loops are used to repeat sequences of calculations. bird12_csm Unpublished model derived for the SCEC CSM using the method of \citebird99, available online at http://sceczero. 'find first empty row in database iRow = ws. First download the data file into a file called data. however, if you use: hist(a,b), then the repetitions are counted against the reference (b). I need to find the indexes of duplicate strings in this array. txt) or read book online for free. MATLAB enables scientists and engineers to use matrix-based techniques to solve problems, without having to write programs in traditional languages like C and Fortran. This screencast is all about arrays -- what they are, how to access and modify individual elements and "slices" of an array, how to add rows and columns to a matrix, and the RESHAPE and transpose. Learn more about find, sort, array MATLAB. But many of our designs use a repeated measures variable than is not ordinal. (about that syntax: the 1 is the number of times diff will be run recursively, the 2 is the dimension along which diff should operate). Finding Duplicate Values per Column. value: ans:. m” extension) at the MATLAB prompt. Matlab only supports single quotes, which means parsing errors will occur if you try to use double quotes (e. To find eigenvalues of a matrix all we need to do is solve a polynomial. 3 Ways to Find Duplicate Elements in an Array - Java There are multiple ways to find duplicate elements in an array in Java and we will see three of them in this program. unique gives all values that occur in the vector/matrix, which is about the opposite of what you want. In this section we will solve systems of two linear differential equations in which the eigenvalues are distinct real numbers. Mod Function in MATLAB. How to delete duplicate values in a column. You can choose how many values but fewer than 1000 is recommended. Do not use MATLAB’s built-in functions for solving nonlinear equations. Although what is displayed on the command window might look the same, floating point values can differ at the low end of their significand, so testing for equality (like unique does) does not work. l should have four elements telling how long each run is. 15 and value2 = 1. I have been trialing with Index, Match, Vlookup, and Row and keep failing even with a helper column Countif because I have duplicate values :( Checked out these old threads as well and have not been able to replicate the correct results. MATLAB Tutorial - Roots of Equations ES 111 1/13 FINDING ROOTS OF EQUATIONS Root finding is a skill that is particularly well suited for computer programming. When you assign a value to a variable its previously assigned value will be overwritten. The first statement in a function is executed first, followed by the. We then create one HashMap with Character as a key and it’s number of occurrences as a value. I have the data in the form of gray levels (only 1 and 0 for dark and bright pixels) in a 3D array. Learn more about duplicate values, matrices. Write a program that adds the numbers 1 through 100, and save it as an M-file. If so you can use diff (Q,1,2) to find the positions that have repeated values. How to find duplicate values in 2d matrix?. The book provides a systematic, step-by-step approach, building on concepts throughout. Need to remove repeated adjacent elements in an array. Matlab is a prototyping environment, meaning it focuses on the ease of development with language exibility, interactive debugging, and other conveniences lacking in performance-oriented languages like C and Fortran. Learn more about unique, vector. MATLAB Answers. Without looking at his code, Finding Patterns in Arrays » Loren on the Art of MATLAB - MATLAB & Simulink. I want to write a general program to find the eigenvalues for any matrix by using eigenvalues equation in matlab program,how i can write please give me some suggestion. Compare every other value in the array to the Largest value and, if a larger value is found, store it into the variable Largest. The matrix can be of class double , in which case it contains values in the range [0,1], or of class uint8 , in which case the data range is [0,255]. What if there are multiple repeated values. how can i find same values in an array?. If so you can use diff (Q,1,2) to find the positions that have repeated values. Can you tell me why you're still trying to use Adam's code even after I told you it doesn't work but mine does?. How to Find Trace on MATLAB. Once Matlab reads the end statement, it will execute and repeat the loop. Read the values into Matlab. We will use reduction of order to derive the second solution needed to get a general solution in this case. what i want is: like 1 is repeated 2 timesnow add the respective values from column 2 i. how to find repeated value in a matrix?. In Matlab, loops can be implemented with a for end construct or a while end construct. Digital Image Processing Using Matlab 40 Spatial Filtering • Move a “mask”: a rectangle (usually with sides of odd length) or other shape over the given image. Finding the indices of duplicate values in one Learn more about duplicate values MATLAB. Toggle Main Navigation. You can then find out what indices are missing to find the repeated values. In Matlab, loops can be implemented with a for end construct or a while end construct. m” extension) at the MATLAB prompt. These values are returned in cell arrays. 回答済み Unable to use a value of type cell as an index You are passing in a variable called title to the second function. 2 ASSIGNMENT Assignment refers to assigning values to variable names. To find out more, including how to control cookies, see here. 1 to the previous value of “a” The loop starts with the value n=1 and ends with n=10. Exercise 6. In Matlab you introduce variables and assign values to them all by yourself. Arthur, with your new array A = [29892, 29051, 29051], my code still works. Strictly it could be a list of other objects than numbers but “list of numbers” will fit our needs for now. The underlying probabilities (as encountered in the familiar "birthday matching problem") show that this behavior is correct. This is another way of saying that with repeated trials, we can create a sample of x values. That is ok; the physical paths are given here but there may be a link in another location. I am analyzing a dataset with one within variable (Xw1) and one between variable Xb1. So Matlab had determined that 1. Discover what MATLAB. what i want is: like 1 is repeated 2 timesnow add the respective values from column 2 i. Matlab is a powerful mathematical tool and this tutorial is intended to be an introduction to some of the functions that you might find useful. To run a program, type the file name (without the “. It then finds and returns all values in the a which are true. For example, when dividing 17 by three, the remainder of two could be more important to know than the integer quotient of five. Find Largest Positive Value Next to Zero 19 Posted by Loren Shure , July 1, 2009 Recently, Steve wrote a blog discussing code clarity/obscurity in the context of one-line code solutions. This results in the storage of the values in the memory location corresponding to the variable name. I clearly could not see why at the time until I thought of this:. I have a very large matrix (901x1801) which I generated by combining values of three similar arrays (with repeated values in them) to generate unique codes using a mathematical expression. The second method is to use logical addressing, which first changes a into a logical array, with value 1 if the logical expression is true and 0 if it is false. The data for this example is a list of people's names. Since we have more than one measurement for each participant, we should perform repeated measure ANOVA. For example: lets take numbers{1}(1,:) and check it across every single value in the array to see if the number is duplicate. Question-Solved Finding the indices of the nearest values of a matrix to a desired value (self. I am trying to find the parameters which approximate my datapoints as best as possible with the help of Matlab. value(s) of the variables k and numbers after the loop has been executed.