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Unique matlab?
If A is a row vector, then C is also a row vector Thread-Based Environment Run code in the background using MATLAB® backgroundPool or accelerate code with Parallel Computing Toolbox™ ThreadPool. c, ia, ic= np. First-generation college students, or. 使用 unique 找出串联向量 [x;y] 中的唯一元素。unique 函数执行精确比较，并确定 x 中有些值与 y 中的值不完全相等。这些值与那些在 x-y 中具有非零差分的元素是同一批元素。因此，c 中包含一些 貌似 重复的值（实际上有细微差异）。 unique. Take a look at 10 of the most unique celebrity baby names to learn more. for example: "a" is a struct array with fields: z fit. This can be done with randi and could even be vectorized by just drawing a lot of random numbers at each step until the unique amount is correct. The resulting vector is sorted in ascending order. Learn more about identifying unique rows MATLAB. Unique elements of a vector b = unique(a) b = unique(A,'rows') [b,i,j] = unique( b = unique(a) returns the same values as in a but with no repetitions. Repeat until you have m numbers. U is a new cell array with the same values as C but without repetitions. setOrder can be 'sorted' or 'stable'. Hotel Costa Verde is the ultimate destination for. Open in MATLAB Online. unique を使用して、連結ベクトル [x;y] 内の一意の要素を検出します。 関数 unique は厳密な比較を実行し、x の一部の値が y の値と厳密には等しくないと判定します。 これらは、x-y の差が非ゼロである、同じ要素です。 したがって、c には重複しているように "見える" 値が含まれています。 Introductory Discussion. Unique elements of a vector b = unique(A) b = unique(A,'rows') [b,m,n] = unique( b = unique(A) returns the same values as in A but with no repetitions. How can I get only unique numbers? Nov 26, 2009 · Unique Values Without Rearrangement. How can I get only unique numbers? Nov 26, 2009 · Unique Values Without Rearrangement. Celebrity baby names are usually more unique than average. b = unique(A,'rows') returns the unique rows of A. b = unique(A,'rows') returns the unique rows of A. A = rand (100,1); [C,IA] = uniquetol (A,1e-2, 'OutputAllIndices' ,true); Find the average value of. Use unique to find the unique elements in the concatenated vector [x;y]. Unique elements of a vector b = unique(a) b = unique(A,'rows') [b,i,j] = unique( b = unique(a) returns the same values as in a but with no repetitions. a can be a cell array of strings. Generate an integer between 1 and n-1, this is the choice out of the available integers. See syntax, description, examples, and input arguments for makeUniqueStrings. See the syntax, examples and output of the unique function with different options. No value is repeated, but the unique(array) produces the result [ 2 3 4 5 6 7 8 9 10] which is what I want. Jan 6, 2015 · I need to generate m unique random numbers in range 1 to n. a = randi([1 5],200,1); Find the unique elements in the vector. Return the index vectors ia and ic. In this article, we’ll cover some of the most unique things to do in Sacramento and show you why visiting the Californian capital is a good idea. For example 'find' and 'unique' functions really takes less than a minute to run in Matlab, but if you want to code the samein Fortran it takes atleast 10-30 mins for an expert and maybe 1-1 1/2 hour for me. AI is now being used in ways we could've never dreamed of. You can flatten the nested cell arrays into a single cell array using {:} indexing combined with horizontal concatenation, and then use unique on that to find the unique strings. Use uniquetol to find unique floating-point numbers using a tolerance To find unique rows in tables or timetables with respect to a subset of variables, you can use column subscripting. Preferably, this would be able to s. Unique elements of a vector b = unique(a) b = unique(A,'rows') [b,i,j] = unique( b = unique(a) returns the same values as in a but with no repetitions. The event planning business has been hit hard by the pandemic. How can I get only unique numbers? Nov 26, 2009 · Unique Values Without Rearrangement. Unique elements of a vector b = unique(a) b = unique(A,'rows') [b,i,j] = unique( b = unique(a) returns the same values as in a but with no repetitions. In MATLAB, the simplest form of the function unique returns the unique values contained in a numeric vector, with the results sorted. I have a data set as shown, I need to find the average values of 1 in column A wt to column B, C, etc. The resulting vector is sorted in ascending order. You can then count the occurrences of each value using histc: [U, ic, iu] = unique (C); count = histc (iu, 1:numel (ic)) Example. Everyone has a negative inner voice. You can easily perform the task using: A = unique( B(:,[1 3]), 'rows. @* - Just note that there is a temporary square matrix of size numel(A)*numel(A) in this solution that could get prohibitive if the matrix size pushes 100+ elements square. U is a new cell array with the same values as C but without repetitions. Return the index vectors ia and ic. Not to be confused with Schizophrenia (the most well-known mental illness, perhaps), nor Schizoaffective Disorder (which it is often confused with simply due to nomenclature), Schi. How can I get only unique numbers? Nov 26, 2009 · Unique Values Without Rearrangement. Is there a function like unique which returns the number of elements for each. 2. By clicking "TRY IT", I agree to receiv. How can I get only unique numbers? Nov 26, 2009 · Unique Values Without Rearrangement. The unique function performs exact comparisons and determines that some values in x are not exactly equal to values in y. Use unique to find the unique elements in the concatenated vector [x;y]. Getting indices of all unique rows. An answer explains that unique returns sorted unique values and indices, and gives examples of different output arguments. The resulting vector is sorted in ascending order. We may be compensated when you click on product l. Malcolm Lidierth on 2 Jul 2012. Put more plainly, in this case, the solution works since all the entries are the same size. 知乎专栏提供一个平台，让用户自由表达观点和分享写作。 0. b = unique(A,'rows') returns the unique rows of A. An answer explains that unique returns sorted unique values and indices, and gives examples of different output arguments. Advertisement Your kid's birthday is coming up, and you're fresh out o. You flip the arguments to ismember, and you use the second output argument: [~,loc]=ismember(A,B) loc = 1 5 1 6 The second output tells you where the elements of A are in B If you are working with very strict limits to how many lines you can have in your code, and are in no position to fire the manager who imposed such limitations, you may want to access the second output of ismember directly. The array is stored with values [2 3 10 11 12 13 15 17990]. Mar 2, 2017 · Someone at my work told me to use unique to get some values out of the array. An answer explains that unique returns sorted unique values and indices, and gives examples of different output arguments. No value is repeated, but the unique(array) produces the result [ 2 3 4 5 6 7 8 9 10] which is what I want. You can do the following test. Here's where to shop online for deals on personalized gifts for the holidays. Follow edited Jul 7, 2015 at 22:24 11. Currently what I have implemented is: round(rand(1,m)*(n-1)+1) However, some numbers are repeated in the array. Currently what I have implemented is: round(rand(1,m)*(n-1)+1) However, some numbers are repeated in the array. martinasmith Not to be confused with Schizophrenia (the most well-known mental illness, perhaps), nor Schizoaffective Disorder (which it is often confused with simply due to nomenclature), Schi. If you could actually write a function which does the same thing but just returns a 1 when it finds first instance of zero, i duplicate numbers adjacent to each other Probably you would have to write a MEX. The following might work for you. Return the index vectors ia and ic. 7k 1 1 gold badge 25 25 silver badges 44 44 bronze badges. For a demonstration of using the 'legacy' flag to preserve the behavior from R2012b and prior in your existing code, see the documentation for unique. [C,ia,ic] = unique(a); This example shows how to filter the elements of an array by applying conditions to the array. See different approaches and examples from various answers on Stack Overflow. In MATLAB, the simplest form of the function unique returns the unique values contained in a numeric vector, with the results sorted. By clicking "TRY IT", I agree to receiv. Create a vector of random integers from 1 through 5. Each row has a variable number of numbers. No value is repeated, but the unique(array) produces the result [ 2 3 4 5 6 7 8 9 10] which is what I want. For example I have cell array a = { 'abc' , 'aBc' , 'xyz' , 'Xyz'} now i need to remove the duplication. two dimensional unique values in Matlab Unique Columns Across an Array? 0. How can I get only unique numbers? Nov 26, 2009 · Unique Values Without Rearrangement. For complex inputs, the smallest value is the first value in a sorted list. a can be a cell array of strings. " France is a country that’s no stranger to protest movements—from the massive student demonstrations o. See syntax, description, examples and related functions. U is a new cell array with the same values as C but without repetitions. Are you looking for some unique branch décor ideas? Check out this article and learn more about some unique branch décor ideas. The user is asked to assign values to sixth variables (a,b,c,d,e,f). cookie clicker hack bookmarklet Follow edited Jul 7, 2015 at 22:24 11. Content marketing ca. disp (duplicate_indices); Running this code will give you the indices of the. Find the unique elements in a vector and then use accumarray to count the number of times each unique element appears. Currently what I have implemented is: round(rand(1,m)*(n-1)+1) However, some numbers are repeated in the array. Return the index vectors ia and ic. for example: "a" is a struct array with fields: z fit. 二 在MATLAB中，unique函数不仅可以用于查找数组中唯一的元素，还可以用于执行更复杂的操作，例如处理字符串、单元数组或表格数据，以及控制排序行为。以下是unique函数的一些中级应用示例： 1 unique也可以用于字符串数组。 Alternatives to the "unique" function when looking for indexes of the unique values (Matlab) 4 Find unique values of a vector with same order as in the vector in matlab Find the unique elements of A and preserve the legacy behavior. U is a new cell array with the same values as C but without repetitions. How would I find all rows of a matrix which contain only unique elements? For example, if I have a matrix containing all 3-way combinations of the numbers 1-3: >> x = allcomb(1:3, 1:3, 1:3). For timetables, ismember takes row times into account to determine equality. You can assign an ID value (a hash value in the general case) to TestRigData objects and store it as a new property. Expert Advice On Improving Your Home Videos Latest View All Guides Latest View All Radio Show Late. In MATLAB, the simplest form of the function unique returns the unique values contained in a numeric vector, with the results sorted. The resulting vector is sorted in ascending order. But before I do, I'd like to have a solution to the other case people ask a lot about, and that is where people want to keep the first instance of the duplicate row (along with unique rows), rather than toss out all rows that are members of duplicates. Use uniquetol to find unique floating-point numbers using a tolerance To find unique rows in tables or timetables with respect to a subset of variables, you can use column subscripting. braided floor rug Use unique to find the unique elements in the concatenated vector [x;y]. ] However, when the arrangement of the contents is changed, for eg. Discover its syntax, applications, optimization techniques, and common errors with code examples. The resulting vector is sorted in ascending order. Mar 2, 2017 · Someone at my work told me to use unique to get some values out of the array. Use unique to find the unique elements in the concatenated vector [x;y]. Use unique to find the unique elements in the concatenated vector [x;y]. 使用 unique 找出串联向量 [x;y] 中的唯一元素。unique 函数执行精确比较，并确定 x 中有些值与 y 中的值不完全相等。这些值与那些在 x-y 中具有非零差分的元素是同一批元素。因此，c 中包含一些 貌似 重复的值（实际上有细微差异）。 unique. See examples, comments and answers from MATLAB experts and users. for example: "a" is a struct array with fields: z fit. This is often acceptable, but sometimes a user prefers the results in the order originally found in the data. A user asks how to use unique command for a structured array and only based on data of one part of that array. The resulting vector is sorted in ascending order. Dec 27, 2012 · Use unique for this purpose, it can work on cell arrays too: [U, ic, iu] = unique (C); Where C is your cell array. so when you count the occurrences of each element in (a) against. Find non-unique elements of an array in Matlab List all values in an array without repeats Find unique pairs in a matrix How to get all unique values in a cell array of matrices? 3. The resulting vector is sorted in ascending order. 此 MATLAB 函数 返回与 A 中相同的数据，但是不包含重复项。C 已排序。 如果 A 是表或时间表，则 unique 按排序顺序返回 A 中的唯一行。对于时间表，当确定行是否唯一时，unique 会考虑行时间和行值，并按行时间对输出时间表 C 排序。 如果 A 是分类数组，则排序顺序由类别的顺序确定。 Learn how to use unique function to remove duplicate elements from a vector or a cell array of strings. b = unique(A,'rows') returns the unique rows of A. setOrder can be 'sorted' or 'stable'.
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Discover its syntax, … Hi, I have a cell array and would like to find the unique values (by row) in the cell array. If A is a table, then unique returns the unique rows in A. I'm trying to find a fastest way for finding unique values in a array and to remove 0 as a possibility of unique value. Find non-unique elements of an array in Matlab List all values in an array without repeats Find unique pairs in a matrix How to get all unique values in a cell array of matrices? 3. An answer explains that unique returns sorted unique values and indices, and gives … Learn how to use the unique function in Matlab to find distinct elements in arrays or matrices, whether you're working with numerical data or strings. Currently what I have implemented is: round(rand(1,m)*(n-1)+1) However, some numbers are repeated in the array. MATLAB - Find and number duplicates within an array Get unique values in matrix with Matlab. How to count characters or unique string in matlab Using SUM and UNIQUE to count occurrences of value within subset of a matrix counting letters in a cell "matlab" 3. Oct 26, 2016 · How do I use unique command for a structured array and do the that only based on data of one part of that array. a can be a cell array of strings. Specify ic as the first input to accumarray and 1 as the second input so that the function counts repeated subscripts in ic. A can be a cell array of strings. The user is asked to assign values to sixth variables (a,b,c,d,e,f). Selecting unique pairs from a vector. How can I tell matlab to ignore the time? Generate Random Sequence for Specified Probabilities. unique(a) returns a vector with no repetitions from a vector or cell array. Medicine Matters Sharing successes, challenges and daily happenings in the Department of Medicine ARTICLE: Adverse Pregnancy Outcomes and Cardiovascular Disease Risk: Unique Opport. 타임테이블의 경우, unique 는 행이 고유한지를 판별할 때 행 시간값과 행 값을 고려하며 행 시간값을 기준으로 출력 타임테이블 C 를 정렬합니다 I used unique function, however, the function also returns the same data as in x, but in sorted order. a = randi([1 5],200,1); Find the unique elements in the vector. scentair disney The resulting vector is sorted in ascending order. Take a look at 10 of the most unique celebrity baby names to learn more. U is a new cell array with the same values as C but without repetitions. [C,ia,ic] = unique(a); finding duplicates. Is it possible to use the unique() function in matlab to return two dimensional unique values? I mean, the values can repeat in one dimension but the two dimensions cannot be the same as another vector? How to do that in Matlab? One example: given the following matrix, each column has a two dimensional vector. Unique elements of a vector b = unique(a) b = unique(A,'rows') [b,i,j] = unique( b = unique(a) returns the same values as in a but with no repetitions. We may receive compensation from the products and. @* - Just note that there is a temporary square matrix of size numel(A)*numel(A) in this solution that could get prohibitive if the matrix size pushes 100+ elements square. The array is stored with values [2 3 10 11 12 13 15 17990]. An answer explains that unique returns sorted unique values and indices, and gives … Learn how to use the unique function in Matlab to find distinct elements in arrays or matrices, whether you're working with numerical data or strings. a can be a cell array of strings. I tried [C,ia,ib] = unique(M) but I don't quite know … This function determines the unique values of an N-D array, and counts instances of those values using MATLAB's accumarray function, or in cases where accumarray is … Testing whether values are unique. The unique function performs exact comparisons and determines that some values in x are not exactly equal to values in y. I have two vectors, one of them stores the width dimension of a set of images and another one the height of these set of images. Currently what I have implemented is: round(rand(1,m)*(n-1)+1) However, some numbers are repeated in the array. This is often acceptable, but sometimes a user prefers the results in the order originally found in the data. Open MATLAB, and put the cursor in the console. This is often acceptable, but sometimes a user prefers the results in the order originally found in the data. 使用 unique 找出串联向量 [x;y] 中的唯一元素。unique 函数执行精确比较，并确定 x 中有些值与 y 中的值不完全相等。这些值与那些在 x-y 中具有非零差分的元素是同一批元素。因此，c 中包含一些 貌似 重复的值（实际上有细微差异）。 unique. I know that I can program it but i want to be as efficient as possible in my codes to reduce the running time. unique returns the unique values of an array in sorted order, or the unique rows of a table or timetable. Oct 26, 2016 · How do I use unique command for a structured array and do the that only based on data of one part of that array. zoopla ossett rent Mar 28, 2017 · I want to use unique on a so that I can get out a cell array consisting of *, A*, B, A2, and AB (in no particular order). U is a new cell array with the same values as C but without repetitions. You can use unique in combination with histc to get the relative frequency. For a demonstration of using the 'legacy' flag to preserve the behavior from R2012b and prior in your existing code, see the documentation for unique. This is often acceptable, but sometimes a user prefers the results in the order originally found in the data. 使用 unique 找出串联向量 [x;y] 中的唯一元素。unique 函数执行精确比较，并确定 x 中有些值与 y 中的值不完全相等。这些值与那些在 x-y 中具有非零差分的元素是同一批元素。因此，c 中包含一些 貌似 重复的值（实际上有细微差异）。 unique. A = rand (100,1); [C,IA] = uniquetol (A,1e-2, 'OutputAllIndices' ,true); Find the average value of. Jan 6, 2015 · I need to generate m unique random numbers in range 1 to n. No value is repeated, but the unique(array) produces the result [ 2 3 4 5 6 7 8 9 10] which is what I want. From the search for clean bathrooms and food to shelter in place fluctuations, here are the coronavirus trucking challenges affecting drivers. The resulting vector is sorted in ascending order. In MATLAB, the simplest form of the function unique returns the unique values contained in a numeric vector, with the results sorted. iranproud se Mar 2, 2017 · Someone at my work told me to use unique to get some values out of the array. 타임테이블의 경우, unique 는 행이 고유한지를 판별할 때 행 시간값과 행 값을 고려하며 행 시간값을 기준으로 출력 타임테이블 C 를 정렬합니다 I used unique function, however, the function also returns the same data as in x, but in sorted order. No value is repeated, but the unique(array) produces the result [ 2 3 4 5 6 7 8 9 10] which is what I want. someone values between 2:990 are missing. [C,IA] = unique (A,'rows'); C contains all unique rows of A. If you aspire to start a business that stands out from the crowd, these examples of unique business ideas will get you thinking. A user asks how to use unique to get some values out of an array with missing values. Create a vector of random integers from 1 through 5. The square root function returns the positive square root b of each element of the ar. MathWorks. Currently what I have implemented is: round(rand(1,m)*(n-1)+1) However, some numbers are repeated in the array. Unique elements of a vector b = unique(a) b = unique(A,'rows') [b,i,j] = unique( b = unique(a) returns the same values as in a but with no repetitions. The “linspace” function in MATLAB creates a vector of values that are linearly spaced between two endpoints. Unique elements of a vector b = unique(A) b = unique(A,'rows') [b,m,n] = unique( b = unique(A) returns the same values as in A but with no repetitions.
The resulting vector is sorted in ascending order. You must specify A and B and optionally can. 타임테이블의 경우, unique 는 행이 고유한지를 판별할 때 행 시간값과 행 값을 고려하며 행 시간값을 기준으로 출력 타임테이블 C 를 정렬합니다 I used unique function, however, the function also returns the same data as in x, but in sorted order. Check out these pretty cool job perks that companies have used. Get top content in. How can I get only unique numbers? Nov 26, 2009 · Unique Values Without Rearrangement. Open in MATLAB Online. 使用 unique 找出串联向量 [x;y] 中的唯一元素。unique 函数执行精确比较，并确定 x 中有些值与 y 中的值不完全相等。这些值与那些在 x-y 中具有非零差分的元素是同一批元素。因此，c 中包含一些 貌似 重复的值（实际上有细微差异）。 unique. mini semi truck Another case might be to keep only the duplicate rows. The resulting vector is sorted in ascending order. unique returns the unique values of an array in sorted order, or the unique rows of a table or timetable. Trucking companies are facing unique. It is easy to find the inverse of a matrix in MATLAB. masturbation solo Breeze Airways has announced the 17 routes that its brand-new A220-300s, complete with first class, will fly starting May 4, 2022. answered Jul 10, 2015 at 15:47. The user is asked to assign values to sixth variables (a,b,c,d,e,f). " France is a country that’s no stranger to protest movements—from the massive student demonstrations o. I wish to extract the vector u = [3 1 3 2]. Find unique values through this resulting array. In MATLAB, the simplest form of the function unique returns the unique values contained in a numeric vector, with the results sorted. See the syntax, examples and output of the unique function with different options. xfinity change phone number for example: "a" is a struct array with fields: z fit. data (attached) anda I want to find the unique values of the field touristicRoute (usertouristicRoute) I have tried this code: for m=1:size(Clust. Mar 2, 2017 · Someone at my work told me to use unique to get some values out of the array. a can be a cell array of strings. We may be compensated when you click on product l.
See the syntax, examples and output of the unique function with different options. These are successful, profitable, and unique business ideas. I have a data set as shown, I need to find the average values of 1 in column A wt to column B, C, etc. b = unique(A,'rows') returns the unique rows of A. Jan 6, 2015 · I need to generate m unique random numbers in range 1 to n. unique 函数执行精确比较，并确定 x 中有些值与 y 中的值不完全相等。 这些值与那些在 x-y 中具有非零差分的元素是同一批元素。 unique(a) returns a vector with no repetitions from a vector or cell array. Finding the averages for a unique value Learn more about time series MATLAB. The array is stored with values [2 3 10 11 12 13 15 17990]. b = unique(A,'rows') returns the unique rows of A. How can I get only unique numbers? Nov 26, 2009 · Unique Values Without Rearrangement. Oct 26, 2016 · How do I use unique command for a structured array and do the that only based on data of one part of that array. Find the unique elements in a vector and then use accumarray to count the number of times each unique element appears. I wish to extract the vector u = [3 1 3 2]. These are the same elements that have a nonzero difference in x-y. You can do the following test. The behavior of dataset. So the stable option should be a little bit longer to execute Hi, how do I delete duplicate values from an array or a vector provided that unique function is not used and that the place of the value does not remain empty or zero. unique returns the unique values of an array in sorted order, or the unique rows of a table or timetable. family stokes Finding non-unique values in an array Learn more about non-unique, unique, rows, arrays, matrix manipulation Accepted Answer: Stephen23. The event planning business has been hit hard by the pandemic. This assignment: Theme cummulative_share = cumsum (ones (size (cummulative_share)))*eps + cummulative_share; will do exactly that. Find unique elements of multiple arrays a = randi([1 5],200,1); Find the unique elements in the vector. You can use unique in combination with histc to get the relative frequency. Dec 27, 2012 · Use unique for this purpose, it can work on cell arrays too: [U, ic, iu] = unique (C); Where C is your cell array. By clicking "TRY IT", I agree to receive n. a can be a cell array of strings. No value is repeated, but the unique(array) produces the result [ 2 3 4 5 6 7 8 9 10] which is what I want. U is a new cell array with the same values as C but without repetitions. An answer shows how to use unique command with stable … You can use unique in combination with histc to get the relative frequency. You flip the arguments to ismember, and you use the second output argument: [~,loc]=ismember(A,B) loc = 1 5 1 6 The second output tells you where the elements of A are in B If you are working with very strict limits to how many lines you can have in your code, and are in no position to fire the manager who imposed such limitations, you may want to access the second output of ismember directly. Open in MATLAB Online. Advertisement Your kid's birthday is coming up, and you're fresh out o. C = union(A,B, ___,'rows') and C = union(A,B,'rows', ___) treat each row of A and each row of B as single entities and return the combined rows from A and B, with no repetitions. The natural logarithm function in MATLAB is log(). 使用 unique 找出串联向量 [x;y] 中的唯一元素。unique 函数执行精确比较，并确定 x 中有些值与 y 中的值不完全相等。这些值与那些在 x-y 中具有非零差分的元素是同一批元素。因此，c 中包含一些 貌似 重复的值（实际上有细微差异）。 unique. Each row has a variable number of numbers. a can be a cell array of strings. someone values between 2:990 are missing. for example: "a" is a struct array with fields: z fit. The resulting vector is sorted in ascending order. leading edge health Follow edited Jul 7, 2015 at 22:24 11. com is its comprehens. Unique elements of a vector b = unique(a) b = unique(A,'rows') [b,i,j] = unique( b = unique(a) returns the same values as in a but with no repetitions. This function determines the unique values of an N-D array, and counts instances of those values using MATLAB's accumarray function, or in cases where accumarray is inappropriate the more traditional sort-diff method is used. a can be a cell array of strings. U is a new cell array with the same values as C but without repetitions. However, in the documentation, unique function does not suppo. Unique Function based on 2 columns [Instead of rows] How can I apply the 'unique' function on 2 columns [column 3 and 4] such that they will return the value '3' and '2'. See syntax, description, examples, and input arguments for makeUniqueStrings. For some this voice speaks up oc. Jan 6, 2015 · I need to generate m unique random numbers in range 1 to n. for example: "a" is a struct array with fields: z fit. ) also returns index vectors m and n such that b = A(m) and A = b(n). It helps that it is a logical matrix, but it is still good to be aware of this. Oct 26, 2016 · How do I use unique command for a structured array and do the that only based on data of one part of that array. The unique function performs exact comparisons and determines that some values in x are not exactly equal to values in y. These are the same elements that have a nonzero difference in x-y.