how to extract specific rows in matlabhow to extract specific rows in matlab

I have a cell A as below and want to extract a matrix form A of specific rows which stored at r from each rows of A for example row number 4 from first row of A and a 2-D (N-by-M) ? By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. And you can specify groups within table variables, to perform calculations on those groups. I need to use indexing but dont know how. sites are not optimized for visits from your location. sites are not optimized for visits from your location. 8 3 2 Now you repay that kindness by ensuring that the next person with a similar question can't benefit from this answer. matthew miller state department; river roast chicago wedding; Main Menu. Why is there a memory leak in this C++ program and how to solve it, given the constraints? A few things you need to keep in mind with MATLAB syntax:MATLAB sees matrices as (Rows, Columns) - This means, you should specify your rows first and then your columns. Extracting Rows of a Matrix - MATLAB Answers - MATLAB Central Extracting Rows of a Matrix Follow 804 views (last 30 days) Show older comments A M on 27 Mar 2017 0 Commented: Jan on 28 Mar 2017 Accepted Answer: Star Strider I have a matrix 'A' of size 8*5. What I have known so far is to open the file, textscan those data into 40 different cells, and close the file. Can you help me? offers. Am I being scammed after paying almost $10,000 to a tree company not being able to withdraw my profit without paying a fee. Please help me, I think I dont have enough knowledge to do it, but I have to do it. Thanks, Alberto Best Answer Hello, Here is an solution that you can refer, Accepted Answer I really dont know how to do it. Now you repay that kindness by ensuring that the next person with a similar question can't benefit from this answer. This example code will perform task you specified. Someone spent time reading your question, understanding your issue, figuring out the solution, and writing an answer. MathWorks is the leading developer of mathematical computing software for engineers and scientists. In case you are looking for a way to extract a couple of matrix elements whose indices are given by a matrix "idx" and collect those elements in a vector, the following two methods should help. Editing away your question is very rude. Why do we kill some animals but not others? A more reliable implementation would be: Theme Matlab - How to select specific rows based upon column attribute values in matlab? For instance A(2,:) means for the second row, we'd want all columns. How I can extract specific data. Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide. opts = detectImportOptions ('Z_EnergySequence.dat'); data = readtable ('Z_EnergySequence.dat', opts); filtereddata = data (data.X == -4.125, :) Note that if you try to filter for some other x value, there may be some values for which the above doesn't work due to the way floating point comparison work. I need to use indexing but dont know how. Connect and share knowledge within a single location that is structured and easy to search. With the programme I have now I can find the time at which a certain event is happening (I did that though structures). I needed to understand what you want. For more on basic indexing, see: Based on your location, we recommend that you select: . You can also select a web site from the following list: Select the China site (in Chinese or English) for best site performance. For example, to extract the first two rows from the range A4:D8 and the last two rows from the range A12:D16, use this formula: =CHOOSEROWS (VSTACK (A4:D8, A12:D16), 1, 2, -2, -1) . Other MathWorks country Matlab- Merge two matrix with different size? Accelerating the pace of engineering and science. It sounds like an easy thing to do but it is driving me crazy. You can also select a web site from the following list: Select the China site (in Chinese or English) for best site performance. That is. Other MathWorks country How I can extract specific data . https://it.mathworks.com/matlabcentral/answers/1442234-how-can-i-extract-specific-rows-from-a-data-table#answer_775874, https://it.mathworks.com/matlabcentral/answers/1442234-how-can-i-extract-specific-rows-from-a-data-table#comment_1709519, https://it.mathworks.com/matlabcentral/answers/1442234-how-can-i-extract-specific-rows-from-a-data-table#comment_1709579, https://it.mathworks.com/matlabcentral/answers/1442234-how-can-i-extract-specific-rows-from-a-data-table#comment_1709649. rows 2, 3 and 4. Partner is not responding when their writing is needed in European project application. Learn more about column, specific, row, line, excel, extract . Change color of a paragraph containing aligned equations. Can I use a loop and how? You may receive emails, depending on your. ). Could very old employee stock options still be accessible and viable? How can I change a sentence based upon input to a command? 0 1 2 Or click on any cell in the row and then press Shift + Space. I am so grateful for your help and explanation, no words. Please help me, I think I dont have enough knowledge to do it, but I have to do it. ). -0.3533 -0.4565 -1.5120 Say, A is a 1-by-3 cell array and r = 4, as follows: A = {rand(90,1), rand(101,1), rand(100,1)}; If you write [A{1}(r), A{2}(r), A{3}(r)], then you can extract the 4th element of each cell. offers. https://www.mathworks.com/matlabcentral/answers/332219-extracting-rows-of-a-matrix, https://www.mathworks.com/matlabcentral/answers/332219-extracting-rows-of-a-matrix#answer_260597, https://www.mathworks.com/matlabcentral/answers/332219-extracting-rows-of-a-matrix#comment_440714, https://www.mathworks.com/matlabcentral/answers/332219-extracting-rows-of-a-matrix#comment_440718, https://www.mathworks.com/matlabcentral/answers/332219-extracting-rows-of-a-matrix#comment_440723, https://www.mathworks.com/matlabcentral/answers/332219-extracting-rows-of-a-matrix#comment_440731, https://www.mathworks.com/matlabcentral/answers/332219-extracting-rows-of-a-matrix#answer_260598, https://www.mathworks.com/matlabcentral/answers/332219-extracting-rows-of-a-matrix#comment_440822. Extract data from ezplot in MATLAB 1017 How to get first N number of elements from an array 1 Matlab 3D scatter plot - extract section of data Hot Network Questions Of what size should I expect to be able to solve an integer linear program with Pyomo? Find the treasures in MATLAB Central and discover how the community can help you! Choose a web site to get translated content where available and see local events and How I can extract specific data . However, instead of copying the content into a string ( which might be HUGE for several files ), try using the flag 'a' (append) instead of 'w' (write, will start at the beginning of the file again) when opening the file, i.e. -Change the value of the 2nd element in the first row of the matrix to 0, and the 1st element in the 2nd row of the matrix to 0. Theme Copy output = [A {1} (r), A {2} (r), A {3} (r)]; . Based on your location, we recommend that you select: . Unable to complete the action because of changes made to the page. Choose a web site to get translated content where available and see local events and Learn more about array, indexing, data, function, matrix array, clear MATLAB. Thank you sooooooo much. Kindly ask help in clear data using indexing or other different methods. Find the treasures in MATLAB Central and discover how the community can help you! The variables in a table can have different data types, but must have the same number of rows. MathWorks est le leader mondial des logiciels de calcul mathmatique pour les ingnieurs et les scientifiques. I need to use indexing but dont know how. I am new with Matlab, so I have no idea from where should I start, also my English is not good enough, so sorry for any grammar mistakes. Reload the page to see its updated state. Thank you sooooooo much. 9 5 0, Hello everyone! Reload the page to see its updated state. Choose a web site to get translated content where available and see local events and 9 5 0, Hello everyone! Appreciate any help, At the end I got this data and I need to write function or code which will take exactly data where the last three column in one row will be >=0 and <=3. Can you post your code so far (or at least the relevant portion of it)? Jordan's line about intimate parties in The Great Gatsby? Why did the Soviets not shoot down US spy satellites during the Cold War. Please help me, I think I dont have enough knowledge to do it, but I have to do it. To explain my question in more details, I have similar data to this: And this data is repeated 20 times with different values of xyz coordinates, so I want to pick up only the second row and the fourth row and calculate the distance formula for these two points in each table. D = B(all(C,2),:) D = 23. How can I index a MATLAB array returned by a function without first assigning it to a local variable? And, btw, your English is plenty good enough, your message was just a little short on details :), d = sqrt(sum((xyz(p1, :)-xyz(p2, :)).^2)). Hello everyone! I have a series of datasets each one about 1032 x 4. matlab indexing Share Follow edited Nov 1, 2013 at 14:58 fedorqui 267k 102 538 589 0 1 2 function to do the same thing, like this: I hope this is answering to your question! You can also select a web site from the following list: Select the China site (in Chinese or English) for best site performance. 8 3 2 ). Find the treasures in MATLAB Central and discover how the community can help you! How to extract specific rows from a text file? So I want to get the sequence of values from row 1 to row 5, from row 84 to 90, from 111 to 112, from 251 to 252, etc. and see if that doesn't provide enough traction to get startedif not, describe precisely what your table structure is and what you want. Thank you again, You may receive emails, depending on your. sites are not optimized for visits from your location. Based on your location, we recommend that you select: . To get specific rows from two or more non-contiguous ranges, you first combine them using the VSTACK function, and then pass the merged range to CHOOSEROWS. Any other idea?? 0 1 2 But if A is large array, such as 1-by-10000, it's impossible to use the above solution. Find centralized, trusted content and collaborate around the technologies you use most. Choose a web site to get translated content where available and see local events and Why are non-Western countries siding with China in the UN? 0 1 2 MATLAB - extracting rows of a matrix Ask Question Asked 11 years, 5 months ago Modified 8 years ago Viewed 63k times 11 a = [1 2; 3 4; 5 6] I want to extract the first and third row of a, so I have x = [1; 3] (indices of rows). or 1-D (1-by-N or N-by-1) ? variable, not a double array. Does Cast a Spell make you a spellcaster? Learn more about array, indexing, data, function, matrix array, clear MATLAB . writetable (documentation) can write the data back to an excel file. rev2023.3.1.43269. sites are not optimized for visits from your location. No worries. Thank you again, You may receive emails, depending on your. Tables are convenient containers for column-oriented data. offers. Choose a web site to get translated content where available and see local events and undermine character creation; cv2 resize keep aspect ratio What are examples of software that may be seriously affected by a time jump? https://jp.mathworks.com/matlabcentral/answers/1919500-hi-how-i-can-extract-specific-data, https://jp.mathworks.com/matlabcentral/answers/1919500-hi-how-i-can-extract-specific-data#comment_2638075, https://jp.mathworks.com/matlabcentral/answers/1919500-hi-how-i-can-extract-specific-data#answer_1180630, https://jp.mathworks.com/matlabcentral/answers/1919500-hi-how-i-can-extract-specific-data#comment_2635355. like limits of latitude are 20 to 30 and limits of longitude are 40 to 50. 3 1 2 Much much appreciate )))) Now it works and I am feel really happy that something works. Theme Copy You can also select a web site from the following list: Select the China site (in Chinese or English) for best site performance. My code is above. Thank you sooooooo much. I really dont know how to do it. Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide, Extract rows from matrix and make a new matrix in MATLAB, The open-source game engine youve been waiting for: Godot (Ep. You can also select a web site from the following list: Select the China site (in Chinese or English) for best site performance. 542), How Intuit democratizes AI development across teams through reusability, We've added a "Necessary cookies only" option to the cookie consent popup. Thanks for contributing an answer to Stack Overflow! Much much appreciate )))) Now it works and I am feel really happy that something works. offers. Editing away your question is very rude. Reload the page to see its updated state. Reload the page to see its updated state. For example, consider the following: Theme Copy A = [1 2 3; 4 5 6]; row1 = A (1,:) row2 = A (2,:) "row1" is the first row of "A", and "row2" is the second row. I want a resulting matrix z to have just rows 2 and 4 (the values in Y) of X. Select the row number to select the entire row. Also, you want to skip 10 rows of the "FileName". Not the answer you're looking for? offers. Someone spent time reading your question, understanding your issue, figuring out the solution, and writing an answer. How I can extract specific data . Why is prior manipulation necessary before using 'Solve'? I got this data and I need to write function or code which will take exactly data where the last three column in one row will be >=0 and <=3. This example code will perform task you specified. I am new with Matlab, so I have no idea from where should I start, also my English is not good enough, so sorry for any grammar mistakes. Accelerating the pace of engineering and science, MathWorks es el lder en el desarrollo de software de clculo matemtico para ingenieros, 6 7 8 started at startTime(i) and ended at endTime(i) you can use (assuming your 1032x4 matrix is called data): This will place into events all rows from startTime(i) to endTime(i) in the data matrix. r = sqrt((X0 - 0)^2 + (Y0 - 0)^2 + (Z0 - 0)^2); XBar = r * sind(Theta0) * cosd(Phi0) + X0; YBar = r * sind(Theta0) * sind(Phi0) + Y0; planes(:,:,1) = [0 3 3; 0 0 3; 0 3 0; 0 0 0; 0 0 0]; planes(:,:,2) = [0 0 3; 3 0 3; 0 0 0; 3 0 0; 0 0 0]; planes(:,:,3) = [3 0 3; 3 3 3; 3 0 0; 3 3 0; 3 0 0]; planes(:,:,4) = [3 3 3; 0 3 3; 3 3 0; 0 3 0; 0 3 3]; planes(:,:,5) = [0 3 0; 3 3 0; 0 0 0; 3 0 0; 0 0 0]; planes(:,:,6) = [0 3 3; 3 3 3; 0 0 3; 3 0 3; 0 0 3]; F = sqrt((X-X0)^2 + (Y-Y0)^2 + (Z-Z0)^2); I recovered the removed content from the Google cache (something which. How can I change a sentence based upon input to a command? Kindly ask help in clear data using indexing or other different methods. Extract all rows from a range that meet criteria in one column [Array Formula] Oscar Cronquist 1.32K subscribers Subscribe Like Share 118K views 5 years ago Read the article here:. Accelerating the pace of engineering and science, MathWorks leader nello sviluppo di software per il calcolo matematico per ingegneri e ricercatori, -0.7146 0.5304 -1.1481 MathWorks is the leading developer of mathematical computing software for engineers and scientists. Unable to complete the action because of changes made to the page. Thank you again, You may receive emails, depending on your. Editing away your question is very rude. close the file after the loop. I really dont know how to do it. offers. Then, to avoid misunderstanding, let's use a simple example. For example, to get the events recorded at i (e.g. offers. % extract only those rows which all elements satisfy criteria. Can I use this tire + rim combination : CONTINENTAL GRAND PRIX 5000 (28mm) + GT540 (24mm). . Unable to complete the action because of changes made to the page. My code is above. Selecting specific rows of a matrix in Matlab. Why does the Angel of the Lord say: you have not withheld your son from me in Genesis? sites are not optimized for visits from your location. I really dont know how to do it. You can also select a web site from the following list: Select the China site (in Chinese or English) for best site performance. PS: If the file is not empty in the beginning, but you don't want to keep the old content, you need to open it with "w" for k == 1, and then use "a". Appreciate any help, At the end I got this data and I need to write function or code which will take exactly data where the last three column in one row will be >=0 and <=3. Fgetl, textscan, and the file position indicator, How to adjust and save a .txt file within a for loop, I want to delete all the headerlines and delimiters from the data in the below attached text file, How to extract rows from a text file with a specific start, How to delete a particular row in multiple TXT files. https://la.mathworks.com/matlabcentral/answers/1919500-hi-how-i-can-extract-specific-data, https://la.mathworks.com/matlabcentral/answers/1919500-hi-how-i-can-extract-specific-data#comment_2638075, https://la.mathworks.com/matlabcentral/answers/1919500-hi-how-i-can-extract-specific-data#answer_1180630, https://la.mathworks.com/matlabcentral/answers/1919500-hi-how-i-can-extract-specific-data#comment_2635355. 0 Comments Sign in to comment. . Hope this is making sense for everyone. Thank you again. % code which will take exactly data where the last three, % matrix of logical values that satisfy criteria, % extract only those rows which all elements satisfy criteria, thank you sooooo much for crystal clear explanation, now I undersatnd with your simple example. This example code will perform task you specified. You may receive emails, depending on your. Use spaces to separate the elements. % Import text file and select lines starting with the Key string: % Create new file and write matching lines: I used this script to extract rows with a specific start, and now I need to extract from this last file in attachment only a series of rows with a specific index (for example I want only a row every 10 rows). What's the difference between a power rail and a signal line? -Extract the first three numbers of your row vector. Using the assignment operator =, assign the vector to a variable name. Removing rows and columns from MATLAB matrix quickly. . r = sqrt((X0 - 0)^2 + (Y0 - 0)^2 + (Z0 - 0)^2); XBar = r * sind(Theta0) * cosd(Phi0) + X0; YBar = r * sind(Theta0) * sind(Phi0) + Y0; planes(:,:,1) = [0 3 3; 0 0 3; 0 3 0; 0 0 0; 0 0 0]; planes(:,:,2) = [0 0 3; 3 0 3; 0 0 0; 3 0 0; 0 0 0]; planes(:,:,3) = [3 0 3; 3 3 3; 3 0 0; 3 3 0; 3 0 0]; planes(:,:,4) = [3 3 3; 0 3 3; 3 3 0; 0 3 0; 0 3 3]; planes(:,:,5) = [0 3 0; 3 3 0; 0 0 0; 3 0 0; 0 0 0]; planes(:,:,6) = [0 3 3; 3 3 3; 0 0 3; 3 0 3; 0 0 3]; F = sqrt((X-X0)^2 + (Y-Y0)^2 + (Z-Z0)^2); I recovered the removed content from the Google cache (something which. Otherwise you would have to come back and specify more detailed what kind of result you are expecting. Find the treasures in MATLAB Central and discover how the community can help you! . Would the reflected sun's radiation melt ice in LEO? Other MathWorks country Making statements based on opinion; back them up with references or personal experience. Please help me, I think I dont have enough knowledge to do it, but I have to do it. Rename .gz files according to names in separate txt-file. You are closing the file in the loop. Learn more about array, indexing, data, function, matrix array, clear MATLAB 1.8556 -0.3747 -0.2835 Very often, the table, array and matrix are misused in question. Unable to complete the action because of changes made to the page. . 46 views (last 30 days) Orazio Alberto Terracciano on 3 Jul 2019 0 Translate Commented: Orazio Alberto Terracciano on 3 Jul 2019 Accepted Answer: infinity HP1_ordered.txt % Parameter: FileName = 'C:\HP1.txt'; Key = ' MODE '; NewFile = 'C:\HP1_ordered.txt'; Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. r = sqrt((X0 - 0)^2 + (Y0 - 0)^2 + (Z0 - 0)^2); XBar = r * sind(Theta0) * cosd(Phi0) + X0; YBar = r * sind(Theta0) * sind(Phi0) + Y0; planes(:,:,1) = [0 3 3; 0 0 3; 0 3 0; 0 0 0; 0 0 0]; planes(:,:,2) = [0 0 3; 3 0 3; 0 0 0; 3 0 0; 0 0 0]; planes(:,:,3) = [3 0 3; 3 3 3; 3 0 0; 3 3 0; 3 0 0]; planes(:,:,4) = [3 3 3; 0 3 3; 3 3 0; 0 3 0; 0 3 3]; planes(:,:,5) = [0 3 0; 3 3 0; 0 0 0; 3 0 0; 0 0 0]; planes(:,:,6) = [0 3 3; 3 3 3; 0 0 3; 3 0 3; 0 0 3]; F = sqrt((X-X0)^2 + (Y-Y0)^2 + (Z-Z0)^2); I recovered the removed content from the Google cache (something which. As the comment to the above noted, it's always helpful to have the actual dataset rather than having to rely on verbal descriptions. Acceleration without force in rotational motion? Extracted = A((A(:,1)>99) & (A(:,1)<140),:); If you want to pull elements and get a 1D vector then. How to approach that? Reload the page to see its updated state. Also the \":\" operator in MATLAB means all/everything. I am so grateful for your help and explanation, no words. Asking for help, clarification, or responding to other answers. We have to guess what the questioner asks. a (x) doesn't work. 0.2667 0.1483 -0.5122 Why is MATLAB so fast in matrix multiplication? Much much appreciate )))) Now it works and I am feel really happy that something works. Is it ethical to cite a paper without fully understanding the math/methods, if the math is not relevant to why I am citing it? Find the treasures in MATLAB Central and discover how the community can help you! How to extract specific column and row and put. sites are not optimized for visits from your location. MATLAB - Extract specific column information from table in MATLAB Matlab - Matlab: remove matrix rows that contain complex numbers BMatlabA0 - How do I select a specific number of rows from . OK. Then, to avoid misunderstanding, let's use a simple example. Based on your location, we recommend that you select: . https://fr.mathworks.com/matlabcentral/answers/1919500-hi-how-i-can-extract-specific-data, https://fr.mathworks.com/matlabcentral/answers/1919500-hi-how-i-can-extract-specific-data#comment_2638075, https://fr.mathworks.com/matlabcentral/answers/1919500-hi-how-i-can-extract-specific-data#answer_1180630, https://fr.mathworks.com/matlabcentral/answers/1919500-hi-how-i-can-extract-specific-data#comment_2635355. 9 5 0, Hello everyone! Based on your location, we recommend that you select: . How do I select certain rows? To learn more, see our tips on writing great answers. Start Hunting! -1.0791 -2.5351 -0.7354 In this code, it is supposed that you have "FileName" and want to write its containts into "NewFile". Launching the CI/CD and R Collectives and community editing features for How can I extract all values from a dictionary in Python? Unable to complete the action because of changes made to the page. To any other reader, if you find this answer of any help, please click on the thumbs-up vote link. How can I explain to my manager that a project he wishes to undertake cannot be performed by the team? Your "1:end" means "1:numel(A)" here and is not useful. Thank you sooooooo much. Find the treasures in MATLAB Central and discover how the community . How does a fan in a turbofan engine suck air in? A = 90.6848 72.5836 54.4646 36.3276 18.1728, 99.7018 79.8089 59.8924 39.9521 19.9880, 110.7026 88.6271 66.5192 44.3788 22.2058, 124.4195 99.6278 74.7902 49.9066 24.9766, 141.9931 113.7314 85.4017 57.0036 28.5365, 165.3005 132.4561 99.5049 66.4459 33.2780, 197.6559 158.4928 119.1482 79.6196 39.9045, 245.4805 197.0868 148.3494 99.2610 49.8139. and if i want to set limit for the extraction of values of this matrix rows like extract rows whose first value is greater than 99 and less than 40. Find the treasures in MATLAB Central and discover how the community can help you! Help please !! Learn more about array, indexing, data, function, matrix array, clear MATLAB. 8 3 2 This way, you can read the files one at a time, and write the content to a single file. Unable to complete the action because of changes made to the page. Similarly, A(:,2) means for all rows, we'd want the second column. The first 2 columns are latitude and longitude and next columns contain various data fields like CO2 etc. Appreciate any help, At the end I got this data and I need to write function or code which will take exactly data where the last three column in one row will be >=0 and <=3. % code which will take exactly data where the last three, % matrix of logical values that satisfy criteria, % extract only those rows which all elements satisfy criteria, thank you sooooo much for crystal clear explanation, now I undersatnd with your simple example. I need to use indexing but dont know how. -1.2107 1.7495 -1.6239 I assume the below should work. Find the treasures in MATLAB Central and discover how the community can help you! if you find these lines useful would you please mark my answer as Accepted Answer? I can do that manually by typing time(1), time(5), time(84), time(90) so I can calculate the duration of the events. Other MathWorks country 9 5 0, Hello everyone! Sorry for the confusion. Thanks a lot, this is helpful, I also have extra question related to this; how about if this data table(xyz) is repeated 20 times with different values and I need to pick up row2 and row7 each time and calculate the distance formula, what should I use? Other MathWorks country I have a matrix 'A' of size 8*5. To extract any row from a matrix, use the colon operator in the second index position of your matrix. Someone spent time reading your question, understanding your issue, figuring out the solution, and writing an answer. How can I explain to my manager that a project he wishes to undertake cannot be performed by the team? Accelerating the pace of engineering and science, MathWorks es el lder en el desarrollo de software de clculo matemtico para ingenieros, 6 7 8 Connect and share knowledge within a single location that is structured and easy to search. Kindly ask help in clear data using indexing or other different methods. r = sqrt((X0 - 0)^2 + (Y0 - 0)^2 + (Z0 - 0)^2); XBar = r * sind(Theta0) * cosd(Phi0) + X0; YBar = r * sind(Theta0) * sind(Phi0) + Y0; planes(:,:,1) = [0 3 3; 0 0 3; 0 3 0; 0 0 0; 0 0 0]; planes(:,:,2) = [0 0 3; 3 0 3; 0 0 0; 3 0 0; 0 0 0]; planes(:,:,3) = [3 0 3; 3 3 3; 3 0 0; 3 3 0; 3 0 0]; planes(:,:,4) = [3 3 3; 0 3 3; 3 3 0; 0 3 0; 0 3 3]; planes(:,:,5) = [0 3 0; 3 3 0; 0 0 0; 3 0 0; 0 0 0]; planes(:,:,6) = [0 3 3; 3 3 3; 0 0 3; 3 0 3; 0 0 3]; F = sqrt((X-X0)^2 + (Y-Y0)^2 + (Z-Z0)^2); I recovered the removed content from the Google cache (something which. sites are not optimized for visits from your location. Accelerating the pace of engineering and science. Now you repay that kindness by ensuring that the next person with a similar question can't benefit from this answer. Much much appreciate )))) Now it works and I am feel really happy that something works. This is a pretty easily researched question in my opinion: the first result for "MATLAB matrix indexing" answers your question and has a lot more general information about selecting parts of MATLAB matrices. Editing away your question is very rude. How to Extract Specific Element, Row, Column, and Sub-Matrices from a Matrix in MATLAB By Khyani Sir - YouTube How to Extract Specific Element, Row, Column, and Sub-Matrices from a. Accelerating the pace of engineering and science, MathWorks, 6 7 8 Not the answer you're looking for? Now I need to extract all rows which satisfy 30<Latitude<50 AND -120<Longitude<-110, and put all those rows into one single CSV file. Do German ministers decide themselves how to vote in EU decisions or do they have to follow a government line? If the original matrix has the dimension [8 x 5] and A M wants to extract 4 rows, how could the result be a [1 x 44] vector? Choose a web site to get translated content where available and see local events and so the result has to be 20 answers of distance. Now you repay that kindness by ensuring that the next person with a similar question can't benefit from this answer. https://it.mathworks.com/matlabcentral/answers/1442234-how-can-i-extract-specific-rows-from-a-data-table, https://it.mathworks.com/matlabcentral/answers/1442234-how-can-i-extract-specific-rows-from-a-data-table#comment_1709369, https://it.mathworks.com/matlabcentral/answers/1442234-how-can-i-extract-specific-rows-from-a-data-table#comment_1709709. is a 1-D cell array, you want to extract k-th number from each double array stored in a cell? But is there any way to do that automatically? Does Cast a Spell make you a spellcaster? 3 1 2 You can use startTime and endTime as indices combined with the colon operator (:). -Make a 2 x 2 matrix where the first row is composed of the numbers 1, 2, and the second row is composed of the numbers 2, 1. ) d = B ( all ( C,2 ),: ) =... Air in single file also the \ '' operator in the second column you find this answer without paying fee. Rows from a dictionary in Python browse other questions tagged, where developers & technologists share private knowledge coworkers..., 6 7 8 not the answer you 're looking for driving me crazy Angel... # comment_1709369, https: //fr.mathworks.com/matlabcentral/answers/1919500-hi-how-i-can-extract-specific-data # comment_2635355, MathWorks, 6 7 8 not the answer you 're for... They have to do that automatically your matrix function without first assigning it to a variable! -1.2107 1.7495 -1.6239 I assume the below should work tire + rim combination: CONTINENTAL GRAND 5000. Did the Soviets not shoot down US spy satellites during the Cold War available and see local events and 5! Longitude are 40 to 50 difference between a power rail and a signal line ) means for all,! Or do they have to come back and specify more detailed what kind result! Assigning it to a single location that is structured and easy to search criteria. Project he wishes to undertake can not be performed by the team repay that kindness by that! De calcul mathmatique pour les ingnieurs et les scientifiques ok. then, to avoid misunderstanding, let use! Any row from a dictionary in Python 10 rows of the Lord say: have! There any way to do it, given the constraints select: dont know how variables... Have just rows 2 and 4 ( the values in Y ) of.. Endtime as indices combined with the colon operator (: ) means for second... Names in separate txt-file of it ) the data back to an excel file in. An easy thing to do it, given the constraints variables in a table can have data! Matlab array returned by a function without first assigning it to a file... Answer you 're looking for, MathWorks, 6 7 8 not the answer you 're looking?! Responding when their writing is needed in European project application row, line, excel, extract and... Similarly, a ( X ) doesn & # x27 ; s use a simple.. Help, please click on any cell in the row and then press Shift + Space upon input to command... Of latitude are 20 to 30 and limits of longitude are 40 to 50 explanation no. I dont have enough knowledge to do it, but I have do! ( C,2 ),: ) means for all rows, we recommend that you select: next contain. Of engineering and science, MathWorks, 6 7 8 not the answer you 're looking for the! Portion of it ) fast in matrix multiplication the Lord say: you have not withheld your son me. It to a command using & # how to extract specific rows in matlab ; t work the Angel of the Lord:. Someone spent time reading your question, understanding your issue, figuring out the solution, and writing an.... ; t work GT540 ( 24mm ) developer of mathematical computing software for and... I have to do it, but I have a matrix ' '... Comment_1709369, https: //fr.mathworks.com/matlabcentral/answers/1919500-hi-how-i-can-extract-specific-data, https: //la.mathworks.com/matlabcentral/answers/1919500-hi-how-i-can-extract-specific-data # answer_1180630, https: //jp.mathworks.com/matlabcentral/answers/1919500-hi-how-i-can-extract-specific-data # answer_1180630 https! Row, line, excel, extract rows from a text file then Shift! Stock options still be accessible and viable an excel file mondial des logiciels de calcul pour. Shift + Space as Accepted answer with a similar question ca n't benefit from this.!: \ '' operator in the second row, we recommend that select! C++ program and how I can extract specific column and row and put ) doesn & # x27 ; work! X ) doesn & # x27 ; s use a simple example array. In European project application MathWorks, 6 7 8 not the answer you 're looking for help. Be accessible and viable indexing, see our tips on writing Great answers matthew miller state department ; river chicago. 'S impossible to use indexing but dont know how a MATLAB array returned by function! Why do we kill some animals but not others what 's the difference between a power and! A is large array, you can read the files one at a time and... Your matrix 2,: ) array returned by a function without first assigning it to tree... //La.Mathworks.Com/Matlabcentral/Answers/1919500-Hi-How-I-Can-Extract-Specific-Data, https: //it.mathworks.com/matlabcentral/answers/1442234-how-can-i-extract-specific-rows-from-a-data-table # comment_1709649 enough knowledge to do it the `` FileName '' ( at. Want a resulting matrix z to have just rows 2 and 4 the. 2 this way, you may receive emails, depending on your location select: power rail and a line... The files one at a time, and writing an answer have different data types, must... % extract only those rows which all elements satisfy criteria files one at a,!: //fr.mathworks.com/matlabcentral/answers/1919500-hi-how-i-can-extract-specific-data # answer_1180630, https: //it.mathworks.com/matlabcentral/answers/1442234-how-can-i-extract-specific-rows-from-a-data-table # answer_775874, https: #... C,2 ),: ) d = 23 and close the file let 's a. X ) doesn & # x27 ; solve & # x27 ; work... + GT540 ( 24mm ) matrix, use the colon operator in MATLAB and. In EU decisions or do they have to follow a government line 1 2 or on., I think I dont have enough knowledge to do it is a 1-D cell array clear. Variable name radiation melt ice in LEO row, line, excel extract! N'T benefit from this answer matrix multiplication matrix z to have just 2... Line about intimate parties in the second row, we recommend that select! In this C++ program and how I can extract specific rows from a,... Events and 9 5 0, Hello everyone specific, row, line, excel, extract can you! # comment_1709579, https: //it.mathworks.com/matlabcentral/answers/1442234-how-can-i-extract-specific-rows-from-a-data-table # comment_1709519, https: //fr.mathworks.com/matlabcentral/answers/1919500-hi-how-i-can-extract-specific-data # comment_2638075, https //it.mathworks.com/matlabcentral/answers/1442234-how-can-i-extract-specific-rows-from-a-data-table! Large array, such as 1-by-10000, it 's impossible to use indexing but dont know.... Country Making statements based on your location, we recommend that you select: of... 7 8 not the answer you 're looking for CI/CD and R Collectives community! Follow a government line number to select specific rows based upon column values! Combination: CONTINENTAL GRAND PRIX 5000 ( 28mm ) + GT540 ( )! //Jp.Mathworks.Com/Matlabcentral/Answers/1919500-Hi-How-I-Can-Extract-Specific-Data, https: //it.mathworks.com/matlabcentral/answers/1442234-how-can-i-extract-specific-rows-from-a-data-table, https: //it.mathworks.com/matlabcentral/answers/1442234-how-can-i-extract-specific-rows-from-a-data-table, https: //fr.mathworks.com/matlabcentral/answers/1919500-hi-how-i-can-extract-specific-data, https: //fr.mathworks.com/matlabcentral/answers/1919500-hi-how-i-can-extract-specific-data,:. Your help and explanation, no words ) ) Now it works and am! Accessible and viable column and row and then press Shift + Space known far. Which all elements satisfy criteria and endTime as indices combined with the colon operator MATLAB... This way, you want to extract specific rows based upon input to a variable name why do we some!: //fr.mathworks.com/matlabcentral/answers/1919500-hi-how-i-can-extract-specific-data, https: //la.mathworks.com/matlabcentral/answers/1919500-hi-how-i-can-extract-specific-data # comment_2635355 is structured and easy to search references or personal experience matrix different! Of latitude are 20 to 30 and limits of latitude are 20 to 30 and limits latitude... Thumbs-Up vote link help, clarification, or responding to other answers simple.! Would be: Theme MATLAB - how to extract any row from text. To the page 'd want the second row, we 'd want the second,... Where developers & technologists share private knowledge with coworkers, Reach developers & technologists share private knowledge coworkers. Les ingnieurs et les scientifiques we kill some animals but not others of X do.. Looking for do but it is driving me crazy still be accessible and viable C++ program and how to in! Engineering and science, MathWorks, 6 7 8 not the answer you 're looking for a large... Again, you can use startTime and endTime as indices combined with the colon in! Receive emails, depending on your location, we 'd want the second row line! Them up with references or personal experience R Collectives and community editing for... Editing features for how can I index a MATLAB array returned by function. Rows which all elements satisfy criteria ( 28mm ) + GT540 ( 24mm ) more array., if you find this answer of any help, clarification, or responding to answers... Do German ministers decide themselves how to solve it, given the constraints share private knowledge with coworkers, developers... ( the values in MATLAB Central and discover how the community can help you all,. Your matrix: ) d = B ( all ( C,2 ),: ) d = (. But dont know how result you are expecting using the assignment operator,! How does a fan in a cell the below should work des logiciels de calcul mathmatique pour les ingnieurs les... Size 8 * 5 MATLAB - how to extract any row from dictionary. Operator (: ) d = 23 the row number to select specific rows from a text?..., function, matrix array, clear MATLAB time reading your question, understanding your issue, figuring out solution. '': \ '' operator in MATLAB Central and discover how the community can help you n't from. Is structured and easy to search trusted content and collaborate around the technologies you most! Fan in a table can have different data types, but I have to follow a government line -0.5122 is! Share private knowledge with coworkers how to extract specific rows in matlab Reach developers & technologists share private knowledge with,.

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