Alright I'll will edit my answer shortly. MATLAB read a desired number of matrices from a cell array, Average matrices in a cell array within a structure Matlab, pass data between C++ Eigen Matrix and MATLAB mxArray with a cell array, Received a 'behavior reminder' from manager. Your example is not a cell array, do you need it to be a cell array or are you happy with an array of doubles? I would like to be able to extract part of a structure as an array. I have already tried to convert the data to a matrix, but the problem here is that the tracks have of course not all the same lengths. One of the columns consists of 1 by 1 structs. Accelerating the pace of engineering and science. then you have to create a cell array using curly braces, You may receive emails, depending on your. 1. Web browsers do not support MATLAB commands. In MATLAB, is used to continue a line to the next line. This time, the values have different data types, so the result is returned in a cell array. Thanks a lot for your fast answer! To subscribe to this RSS feed, copy and paste this URL into your RSS reader. From the top to the bottom the time increases - first row t0, second t1, third t2 and so on. Field name, specified as a case-sensitive string scalar or character Extract the X field from the structure and examine the format of the returned values. So I try: I get the x values for (1) and (2), but as two separate outputs. Accelerating the pace of engineering and science. In my sample code, I generate dummy values for the time, X- and Y coordinates and then put them in a cell array, which ultimately contains the data in the format you specified, for each time point. The goal of these NLP techniques is to extract useful information and insights from the text data, and to understand the underlying structure and meaning of the text. offers. e.g cell(1,1) contains about this (111000000110000001100000010000111000)binary digits, so i would like to extract all of them and all the other from each of the remaining cells so that i can form one big matrix of all those. Get the x- and y-coordinates of the roads. PSE Advent Calendar 2022 (Day 11): The other side of Christmas, Better way to check if an element only exists in one array. your location, we recommend that you select: . PDF Beamforming mimo matlab code. . A novel beamformer without tapped delay lines (TDLs) or sensor delay lines (SDLs) is proposed. I would like to create a 1x3 matrix which contains the values from the 1x3 cell. B = A; B.data = B.data (:, [1 2 3 6]); % delete columns of data [~, ind] = sort (B.data (:,1)); % get sorted indexes for column 1 B.data = B.data (ind, :); % now sort all rows of data matrix. Inside the inner loop, you call ode45(). But, my question is, is there an easier, more elegant way to do this? offers. So this instruction does not work for me. vector or cell array. A few default data types in MATLAB are: double numbers in MATLAB are stored as doubles. I am searching for an appropriate data structure to save my results in. I'm assuming that the information about the track is stored in the structure called DataStruct, with fields named X_Coord and Y_Coord. The NumPy library is mainly used to work with arrays.An array is basically a grid of values and is a central data structure in Numpy. It is 1x(8t) double, where t is the lentgh of the track - for example, a track with 20 time points results in a 1x160 double. Copy. Based on The struct contains two fields called type which is a string and coordinates which is a cell 1x3. This results in the following cell array: You can then convert to an array of doubles using cell2mat; In your case, this information is in a matrix and thus the way in which indexing is performed in the structure will be different. Select the plot, starting just outside the axes (make sure t I understood how isnan works. All I need is to fetch the time points and the x and y coords (t/x/y) and write them into a cell array, one element for each particle. Extracting data from a structure. that is, n = numel([S(:).(name)]). Reload the page to see its updated state. Select "Brush?Select Data" tool. Is it illegal to use resources in a University lab to prove a concept could work (to ultimately use to create a startup). For illustrative purposes, change the X field value in one of the elements to have a different data type. Other MathWorks country The scipy.io library in Pylab can read Matfiles into numpy structures using the 'loadmat' command. what if the elements are strings and cannot be concatanated in anyways? I wish to extract data from an structure array. that is why i want to extract all these digits since the code wont function when the data is still in the structure form. quickly create a cell array with two elements in matlab? You can also select a web site from the following list: Select the China site (in Chinese or English) for best site performance. MATLAB: extracting data from structure and placing into custom size matrix user1230617 2012-03-23 14:59:05 3115 1 matlab/ structure/ data-extraction. Unable to complete the action because of changes made to the page. You have a modified version of this example. Asking for help, clarification, or responding to other answers. I can do this by the following: Now I have what I want. Extract data from a structure 627 views (last 30 days) Show older comments jfrazie9 on 26 Mar 2018 0 Translate Answered: Ameer Hamza on 21 Apr 2018 I have a "1x1 struct" with 2 fields. For example, Theme Copy [mydata_EL {2:end}] is automatically expanded by matlab into Just in case, the code is here () and the compressed data is "I_runcode" Thank you again, You may receive emails, depending on your. In the meantime you can play around with ~isnan(Matrix) to find the elements in Matrix that are not NaNs. I'm assuming that the information about the track is stored in the structure called DataStruct, with fields named X_Coord and Y_Coord. Control Tutorials for MATLAB and Simulink. Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide. From your questions and comments, the following solution will work for you. will extract the values in column 1 from row 16 to row 20. Accelerating the pace of engineering and science. For example, suppose I create a simple structure: Now suppose I want to extract the x values for the first two parts of this structure (that is, (1).x and (2).x). MathWorks is the leading developer of mathematical computing software for engineers and scientists. I am using the function cellfun to extract the data type double, but this does . Then it starts again with x coord, y coord, and so on for the second time point until the end. Can I filter it so that the values in column 1 are only flow paths 16-20 for example? Struct = xml2struct (filename); time (i) = Struct.time.v1); data (i) = Struct.data.v2); end. I am quite new to Matlab and can't come up with a solution to the following problem: From a single particle tracking program that uses Matlab (uTrack, to be precise) I get the tracking results as a structure. Suppose you original struct is A and you want to create another struct object B by deleting some columns of A and sorting rows according to column 1. of the input field is not preserved in a. Choose a web site to get translated content where available and see local events and This course emphasizes the following topics: 1) kinetics and reactor engineering principles; 2) bio-reaction kinetics; and 3) bioreactor design. with one element in the cell array for each particle. Shortcut: You can use Ctrl+K, Ctrl+C and Ctrl+K, Ctrl+U to Comment or Uncomment selected lines . For Method "3" it is done at 20, 60 and 80% respectively. From your questions and comments, the following solution will work for you. offers. sites are not optimized for visits from your location. https://www.mathworks.com/matlabcentral/answers/60819-extracting-data-from-a-structure, https://www.mathworks.com/matlabcentral/answers/60819-extracting-data-from-a-structure#answer_73161, https://www.mathworks.com/matlabcentral/answers/60819-extracting-data-from-a-structure#comment_126496. Oh and do you mean each row contains data for one particle? [Best answer]-MATLAB: extracting data from structure and placing into custom size matrix Search i have a file, filedata.mat, containing a 1x1 struct with sub-levels that contain data from vehicle channels. your location, we recommend that you select: . Edit menu, Figure Properties. How long does it take to fill up the tank? Inside this strucutre, the tracks of every particle is stored within another structure. Hi I am new to matlab. For illustrative purposes, change the X field value in one of the elements to have a different data type. Link. For instance what is its size? How do I sort based on the value in the first column would be a better question? Choose a web site to get translated content where available and see local events and B = A; B.data = B.data (:, [1 2 3 6]); % delete columns of data [~, ind] = sort (B.data (:,1)); % get sorted indexes for column 1 B.data = B.data (ind, :); % now sort all rows of data matrix. 1 i have a file, filedata.mat, containing a 1x1 struct with sub-levels that contain data from vehicle channels. Making statements based on opinion; back them up with references or personal experience. The problem is most of the Structures have 1 value for v1 and v2 but around 100 of the structures have multiple values. Doubles use 64 bits (8 bytes) to store any number between about -110^(-308) to +110. Other MathWorks country ode45() returns column vector t and array y. Just in case, the code is here (<http://ge.tt/7q04jkV/v/1>) and the compressed data is "I_runcode" Thank you again More Answers (0) Following your comment below, here is what you can do to identify the x and y coordinates that are both NaN ad store them in a new matrix along with their corresponding times: Thanks for contributing an answer to Stack Overflow! channel names, channel units and channel values (against time) are stored in separate sublevels. your location, we recommend that you select: . Ready to optimize your JavaScript with Rust? Determining the names of variables in a data structure and extracting the stored data into variables that can be graphed or manipulated in Matlab Output: Using isletter() The isletter() function is used to find the array of elements that are letters of the alphabet.. Syntax: isletter('string') Here, isletter('string') is used to return an array the same size as the specified "string" that contains logical true i.e. I can get around this by putting the result of s([1 2]).x in a cell array, using curly braces: But I actually don't want these values in a cell array; I would like them an array, with each value in a row. I am not sure I understand your question. Extract the names of the roads, stored in the field STREETNAME. 0 when they are not. https://www.mathworks.com/help/matlab/matlab_prog/comma-separated-lists.html, https://www.mathworks.com/matlabcentral/answers/320713-how-to-operate-on-comma-separated-lists, And it is not clearly explained in the comma separated list documentation. For Method "1 Punkt" (short: 1) only at 60% of the depth a measurement is done. it does not even get it as a cell array. A structure like patient is also referred to as a scalar structure because the variable stores one structure. Matlab Matlab uTrack channel names, channel units and channel values (against time) are stored in separate sublevels. structure S. Load a structure that contains information about roads in Concord, MA. Split, Join, and Sort String Array. Is there any reason on passenger airliners not to have a physical lock between throttles? Extract the X field values again. It does not work for me. This can be used for a . I want to extract the "Integrated Intensity" and "Timepoint" fields, so I can plot the intensity of my objects over time. sites are not optimized for visits from your location. Find the treasures in MATLAB Central and discover how the community can help you! n is the total number of elements Problem is, there are about . a A data type designates how a piece of information is stored. I can get around this by putting the result of s ( [1 2]).x in a cell array, using curly braces: Theme Copy >> vals= {s ( [1 2]).x} vals = [1] [3] But I actually don't want these values in a cell array; I would like them an array, with each value in a row. Find the treasures in MATLAB Central and discover how the community can help you! Suppose you original struct is A and you want to create another struct object B by deleting some columns of A and sorting rows according to column 1. Matlab plot of categorical x-axis and cell array data; Extract data from 1x1 cell array; MATLAB export data stored in a double array and cell array to a CSV file; Concatenate certain elements from a cell array into a numeric array - MATLAB; Extract only numerical data from MATLAB from a text file into a matrix Can virent/viret mean "green" in an adjectival sense? Disconnect vertical tab connector from PCB. Find the treasures in MATLAB Central and discover how the community can help you! Learn more about matlab function, cell, struct Reload the page to see its updated state. This command converts the second element to data type single. Find centralized, trusted content and collaborate around the technologies you use most. Connect and share knowledge within a single location that is structured and easy to search. All values have the same numeric data type (double), so the result is returned in a vector. On the left side you can see a the column "Method" which describes at how many depth levels data for the flow was collected. Matlab: Extract Data from Structure and Transfer it into Cell Array. Add a new light switch in line with another switch? In the doubles for the x and y coordinates, every column conatins the coords of one track so there are as many columns as there are tracks. Other MathWorks country sites are not optimized for visits from your location. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. Unable to complete the action because of changes made to the page. is a cell array if any field values in the field name contain a character Why is the federal judiciary of the United States divided into circuits? In my sample code, I generate dummy values for the time, X- and Y coordinates and then put them in a cell array, which ultimately contains the data in the format you specified, for each time point. Can you be more specific regarding the matrix containing x coord, y coord etc.? One of the fields is data and is a 7909x10 double, while the other field is textdata that is a 1x1 cell containing the header of the output file. Learn more about image processing, dct, image compression This is another good practice because you only use the size MATLAB command once; then, you can use the size field of the matrix structure as . This time, the values have different data types, so the result is returned in a cell array. It deals with text but you can tell that its heart isn't in it. MIMO Beamforming Matlab MIMO Beamforming Matlab MIMO is a multi-input, multi-output-based wireless communication system, which . You can run it from the command line, but the output is ghastly. We do not currently allow content pasted from ChatGPT on Stack Overflow; read our policy here. MathWorks is the leading developer of mathematical computing software for engineers and scientists. You can also select a web site from the following list: Select the China site (in Chinese or English) for best site performance. By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. How is the merkle root verified if the mempools may be different? If x happened to be a string variable, like a filename, the following works well: char({s(:).x}). Different data types allow MATLAB to perform different operations on variables. Translate. To learn more, see our tips on writing great answers. Help us identify new roles for community members, Proposing a Community-Specific Closure Reason for non-English content, Matlab dynamic fieldnames structure with cell arrays, MATLAB: Using textscan and converting cell array in matrix, applying function to each column of a matrix within a matlab cell array, Multiply one part of Cell Array with a Scalar Matlab. One of the fields is data and is a 7909x10 double, while the other field is textdata that is a 1x1 cell containing the header of the output file. B = A; B.data = B.data (:, [1 2 3 6]); % delete columns of data [~, ind . the file has close to 30 measured channels. char and string commands extract all the data . :StackOverFlow2 . Extracting data from matlab struct - MATLAB Answers - MATLAB Central Extracting data from matlab struct 51 views (last 30 days) Show older comments Ede gerlderlands on 18 Nov 2012 1 Link Translate Accepted Answer: Walter Roberson I have a data structure vector "A" = <1x24struct> that is 24sets long of these variable six fields: br: 38.6890 The diagram shows how the structure stores data. Unable to complete the action because of changes made to the page. Not the answer you're looking for? As you said in the comments, the size of the matrix is 1x8(TimePoints), so you will have to play around with reshape for example to make it easier to access the elements in it. Reload the page to see its updated state. the file has close to 30 measured channels. Mathematica cannot find square roots of some matrices? The solution is very simple: always load into an output variable (which is a scalar structure): S = load (.) Where does the idea of selling dragon parts come from? Here is a crude way to extract data from a simple plot. Not sure if it was just me or something she sent to the whole team. You can also select a web site from the following list: Select the China site (in Chinese or English) for best site performance. I have performed DCT on an image(256256) and the the compressed data is saved in a file. Therefore, I need to somehow extract the x and y coordinates, transfer them and add the time information in the first column with the correct lenght. Extracting data from struct within matlab table Ask Question Asked 0 I have a matlab table. MathWorks is the leading developer of mathematical computing software for engineers and scientists. A dictionary with a structure key type maps to a MATLAB structure array. The variables in the .mat file are the fields of that scalar structure. You can trivially and efficiently iterate over the fields of that structure: F = fieldnames (S) ;for k = 1:numel (F) S. (F {k}).y_values.valuesend. Is this an at-all realistic configuration for a DHC-2 Beaver? I have a "1x1 struct" with 2 fields. For further evaluation, I only need the x and the y coordinates in a cell array in the following form. a is the same type as the field values. EDIT: In this structure, the tracks can then be found as a matrix (two other matrices are also there with other information) in the following way: This would be for the first time point. You clicked a link that corresponds to this MATLAB command: Run the command by entering it in the MATLAB Command Window. https://www.mathworks.com/matlabcentral/answers/7155-elegant-way-to-extract-part-of-a-structure-as-an-array, https://www.mathworks.com/matlabcentral/answers/7155-elegant-way-to-extract-part-of-a-structure-as-an-array#comment_503337, https://www.mathworks.com/matlabcentral/answers/7155-elegant-way-to-extract-part-of-a-structure-as-an-array#comment_593611, https://www.mathworks.com/matlabcentral/answers/7155-elegant-way-to-extract-part-of-a-structure-as-an-array#comment_649570, https://www.mathworks.com/matlabcentral/answers/7155-elegant-way-to-extract-part-of-a-structure-as-an-array#comment_1193234, https://www.mathworks.com/matlabcentral/answers/7155-elegant-way-to-extract-part-of-a-structure-as-an-array#comment_1347749, https://www.mathworks.com/matlabcentral/answers/7155-elegant-way-to-extract-part-of-a-structure-as-an-array#comment_1591225, https://www.mathworks.com/matlabcentral/answers/7155-elegant-way-to-extract-part-of-a-structure-as-an-array#answer_9802, https://www.mathworks.com/matlabcentral/answers/7155-elegant-way-to-extract-part-of-a-structure-as-an-array#comment_820637, https://www.mathworks.com/matlabcentral/answers/7155-elegant-way-to-extract-part-of-a-structure-as-an-array#comment_820638, https://www.mathworks.com/matlabcentral/answers/7155-elegant-way-to-extract-part-of-a-structure-as-an-array#comment_1010398, https://www.mathworks.com/matlabcentral/answers/7155-elegant-way-to-extract-part-of-a-structure-as-an-array#comment_1443737, https://www.mathworks.com/matlabcentral/answers/7155-elegant-way-to-extract-part-of-a-structure-as-an-array#answer_290388. for i = 1:1600. Course Description: Engineering principles to direct cell and tissue behavior and formation. Accelerating the pace of engineering and science. MATLAB executes the statement and returns a row vector containing the integers from 1 to 10 . source.Data.ChannelNames . First convert your cell array of structures, c, (with identical field names in the same order) to a structure array: c = cell2mat (c) Then, depending on the data types and sizes of the elements of the field, you may be able to use [c.x] to extract your vector of field x values in the "standard" way. https://www.mathworks.com/matlabcentral/answers/390823-extract-data-from-a-structure, https://www.mathworks.com/matlabcentral/answers/390823-extract-data-from-a-structure#answer_312072, https://www.mathworks.com/matlabcentral/answers/390823-extract-data-from-a-structure#comment_549896, https://www.mathworks.com/matlabcentral/answers/390823-extract-data-from-a-structure#comment_549898, https://www.mathworks.com/matlabcentral/answers/390823-extract-data-from-a-structure#comment_549908, https://www.mathworks.com/matlabcentral/answers/390823-extract-data-from-a-structure#comment_549915, https://www.mathworks.com/matlabcentral/answers/390823-extract-data-from-a-structure#answer_316350. The results per file comprise several single values & a vector (resultType). then the function extracts substrings from each element of str. How to extract some values from a structure? The table has 3585 rows. Display the map, and highlight the first few elements using the color magenta. Extract data from structures for multiple files. matlab - Extracting a matrix of data from a matrix of structs - Stack Overflow Extracting a matrix of data from a matrix of structs Ask Question Asked 9 years, 10 months ago Modified 7 years ago Viewed 779 times 1 I have a matrix of structs. This command converts the second element to data type single. Extract all the times and temperature measurements from this structure array for each of the different locations specified by "id" take ANY of the structure elements from data1 that contains a time and measurement field which has Values of 1X24, then append ALL the other times and temperatures to the times of THAT structure element. What's the \synctex primitive? You can also select a web site from the following list: Select the China site (in Chinese or English) for best site performance. Suppose you original struct is A and you want to create another struct object B by deleting some columns of A and sorting rows according to column 1. My aim is to have this data being able to be read in a c++ code which inputs 256*256 image data. I would like to extract these digits and align them in 1 matrix, however i do not know how to do this. Array theta is the same as array y, expcept a column has been added on the right of y and on the left of y. First, create a structure named patient that has fields storing data about a patient. Choose a web site to get translated content where available and see local events and offers. My mistake I was unclear, the first column is the pathID numbered 1-55, where there are approximately 142 rows with pathID = 1, another 142 with pathID = 2. Each field has 100 values. Extracted field values, returned as a 1-by-n numeric Choose a web site to get translated content where available and see local events and Other MathWorks country With this new data structure can I filter by the rows I want as well? r (2).X = single (r (2).X); Extract the X field values again. Can you please advise me on how to solve this problem in matlab. 1 when the elements of "string" are letters of the alphabet, and logical false i.e. 2 d fir filter design in matlab. But if what you mean is that you have a cell array of structures and that you want to extract one element from each structure, then you could do as follows: your_mat = cellfun(@(x) x.whatever,your_cell); Thank you for the feedback. And making: system ('cd "C:\Program Files\R\R-3. ; You can define a field of a structure using another field (namely matrix.value). Hope that helps get you started! It concatenates my arrays, so that if the field "analysis" of the variable "data" is made up of 10 arrays 1x100000, I get one array 1x1000000. Just to make it more clear(sorry if i was vague), i would like to extract every digit in each of the structures so that i form one big matrix. - MATLAB Answers - MATLAB Central How to extract some values from a structure? What about extracting double variables in a vector from nested structures like structA.structB.structC.var? . It must be made sure that it (1) only takes the numbers and that (2) the time points are added accordingly (e.g. How can I fix it? Suppose you original struct is A and you want to create another struct object B by deleting some columns of A and sorting rows according to column 1. There are 2 things to notice here: The "value" field of the matrix structure (matrix.value) is defined as a matrix in the same way you would define a regular matrix. The shape You have two nested for loops. sites are not optimized for visits from your location. This course version is effective from, and including: Winter Quarter 2023. The solutions using "get" never really worked for me. 1 It only captures the first of the two outputs. compare different groups). Are defenders behind an arrow slit attackable? Edit: one can also step through the figure data in Matlab, by loading the figure using the command "s=load ('Figure.fig','-mat')". One can then browse the figure data in Python and locate the data. From your questions and comments, the following solution will work for you. When i open this file in workspace, the compressed file is a 3232 structure, with cells, each containing binary digits of different lengths(some more than 128) for each cell. Im extracting data from a structure in a for loop as follows: Theme. vector. After analysis of my files (>1000), results+metadata for each file should be saved into a single structure / table / db, that allows for subsequent analysis of the results based on metadata (i.e. I have now the following: - One large, let's say 1000x1 double for the time - One double for x - And one for y (each column in it is for one particle). in the field name of structure S, vector or if the field values are not uniform in type; otherwise Is it possible to hide or delete the new Toolbar in 13.1? ECSE 021: Microwave- and millimeter-wave skin spectroscopy: towards a diagnostic tool for melanoma detection ECSE 022: Alkali intercalation of multi-layer graphene and graphite investigated by charge transport ECSE 023: Graphene oxide circuit substrate prototype development ECSE 024: Compact Thermal Simulator for Chiplet-Based Integration Platforms Do you want to open this example with your edits? What happens if you score more than 99 points in volleyball? Tabularray table when is wraped by a tcolorbox spreads inside right margin overrides page borders. Alright @mtmtmt I made the changes please look at the edited answer :). a = extractfield(S,name) that is why i want to extract all these digits since the code wont function when the data is still in the structure form. The field values are character vectors, so the result is returned in a cell array. So if I make an assignment like the following: It only captures the first of the two outputs. 46 x and y coords-->46 time points). Problem: There are a lot of NaNs in the x and y coords. The 7909 rows are various time for 55 flow paths, thus each flow path accounts for roughly 142 of the 7909 values. I can do this by the following: Theme Copy Note: For more information, refer to Python Numpy.In this tutorial, we will cover Numpy arrays, how they can be created, dimensions in arrays, and how to check the number of Dimensions in an Array.. data_mat = cat (3, data_struct.data); %extract column 3 and reshape the Mx1xN array into a MxN array data_col3 = squeeze (data_mat (:, 3, :)); The first two lines of code use what is known as expansion of cell arrays and structure arrays into comma-separated lists. returns the field values specified by the field name of How to make voltage plus/minus signs bolder? Here is a bit of code to help you fetch the data you want in the structure containing informations for each of the tracks. The following creates a 636x6 matrix: %concatenate the structure in each cell into a structure array:data_struct = [mydata_EL { 3 :end}];%concatenate the data field of each element of the array into a 3 D matrixdata_mat = cat ( 3, data_struct.data);%extract column 3 and reshape the Mx1xN array into a MxN arraydata_col3 = squeeze (data_mat (:, 3 It helped, and I was able to get my data into a nicely seperated form. rev2022.12.9.43105. I do not know how to make it so that I only have the data field that is a 7909x10 double. Suppose you original struct is A and you want to create another struct object B by deleting some columns of A and sorting rows according to column 1.. B = A; B.data = B.data(:, [1 2 3 6]); % delete columns of data [~, ind] = sort(B.data(:,1)); % get sorted indexes for column 1 B.data = B.data(ind, :); % now sort all . Site design / logo 2022 Stack Exchange Inc; user contributions licensed under CC BY-SA. China Texapon N28 SLES 2eo/Texapon N70:, Find details and Price about China SLES , SLES 70% from Texapon N28 SLES 2eo/Texapon N70: - Union Alkalies & Chemicals Co. SLS has a small molecular structure and therefore, penetrates the skin easily. 10 views (last 30 days) Show older comments Benson Gou on 10 Jun 2021 0 Link Commented: Benson Gou on 10 Jun 2021 Accepted Answer: Stephen23 Dear All, I have a structure A which has several fields. Thanks for your help! Use dot notation to add the fields name, billing, and test, assigning data to each field. There are 6 different Methods in total, however these are the ones used in the example. Hello, I am new to matlab so bear with me: I currently have a 1x1 struct called "XY11" that contains 3 fields "DNA", "EGFRN" and "EGFRC" which are each 29890x1 structs with multiple fields. MathWorks is the leading developer of mathematical computing software for engineers and scientists. Based on your location, we recommend that you select: . From there I only need columns 1,2,3 and 6 from those 10 columns and would like to delete the other 6 columns to make a new data structure. Based on My aim is to have this data being able to be read in a c++ code which inputs 256*256 image data. the data is char type and double type. I'm trying to extract from that matrix a matrix the same size with only one of the fields as values. You may receive emails, depending on your. hcanna/beamforming: Matlab code that supports beam. My conversion of the output from array to cell array and then back to array seems very convoluted. Ameer Hamza on 21 Apr 2018. Where is it documented? 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