matlab save variable with different name in loop

Share Can I have all three? I wonder if you could try the attached ,mat file (. No it is does not copy. I have to create a series of variable using a "for" loop. It should be something like: var_i, where 'i' is the current index of the loop. Same thing applies for cell, of course but I believe it is just a matter of choice. I want to use variable and call it in some other code. If you want to give the mat files each its own name, you can use sprintf to generate a name from a pattern. Now I want to store matrices in this structure. Find the treasures in MATLAB Central and discover how the community can help you! Other MathWorks country sites are not optimized for visits from your location. How to save the variables inside for loop. "Dynamically naming variables is not recommended", . The hardest part of building software is not coding, its requirements, The cofounder of Chef is cooking up a less painful DevOps (Ep. I tried using this in my program, I was expecting a 1X100 cell array and each cell value must show 23x20 double. Find the treasures in MATLAB Central and discover how the community can help you! % the loop and sine wave computation keeps going for each Frequency, Can you help with answering these question I'm stuck, The fill in the blank by looking at the code which is at the bottom, When you ran the code, there would have been a final value stored in. Can I save different variables inside of a for loop? - MATLAB Answers (thisfield)); outfile = [thisfield '.mat' ]; save (outfile, '-struct', 'tempvar' ); end Select the China site (in Chinese or English) for best site performance. There is no name for the statement in MATLAB. This will take each variable in Vb1nicw.mat and will save it out to a separate .mat file that is named after the variable, and the variable name used inside the .mat file will be the same as the name of the variable. Ignoring the question, "why do you need this? Each of them is a row of a matrix. Circle the correct answer and fill in the blank: When I look at the plots, the I see the waveforms amplitude. (my_field) = k*2; end 11 Comments However, if I implement it I obtain the following error: I have tested if I need another comma after the i, but the error persists. Based on your location, we recommend that you select: . Autonaming for every loop condition will be useful. Other MathWorks country sites are not optimized for visits from your location. Find the treasures in MATLAB Central and discover how the community can help you! Then you assign something into one of those entries. Dynamically naming variables is not recommended. windX_in_the_node=vientoX_vector(:,element_of_the_ensemble); windY_in_the_node=vientoY_vector(:,element_of_the_ensemble); matriz_a_enviarX_1_of_50=zeros(size(windX_in_the_node,1), 3); matriz_a_enviarX_1_of_50(:,1:2)=positions_reducida; matriz_a_enviarY_1_of_50=zeros(size(windY_in_the_node,1), 3); matriz_a_enviarY_1_of_50(:,1:2)=positions_reducida; matriz_a_enviarX_1_of_50(:,3)=windX_in_the_node; matriz_a_enviarY_1_of_50(:,3)=windY_in_the_node; Can someone please tell me if I can really automate this process? The response of the participants is saved in form or .mat file. Each of them is a row of a matrix. %method 1 for k=1:N temp_var = strcat ( 'variable_',num2str (k) ); eval (sprintf ('%s = %g',temp_var,k*2)); end % method 2, more advisable for k=1:N my_field = strcat ('v',num2str (k)); variable. Tambin puede seleccionar uno de estos pases/idiomas: Seleccione China (en idioma chino o ingls) para obtener el mejor rendimiento. In CP/M, how did a program know when to load a particular overlay? Is ''Subject X doesn't click with me'' correct? To subscribe to this RSS feed, copy and paste this URL into your RSS reader. Especially the weights in Machine Learning. It will quickly become unmanageable and there are much better ways. I am creating a matlab application that is analyzing data on a daily basis. Helpful for me as well. Choose a web site to get translated content where available and see local events and offers. Please reply. Saving .mat file with different names - MATLAB Answers - MathWorks tempvar = struct(thisfield, filestruct. Reload the page to see its updated state. while the _________________ changes as each note is played. Find the treasures in . For loop running over different variables Ask Question Asked 10 years ago Modified 5 years, 10 months ago Viewed 10k times -2 Good day, I would like to do the following in Matlab: var1 = 10; var2 = 15; var3 = 20; j = 1; for i = [var1,var2,var3] a (j) = i + 10; j = j + 1; end clear j; With result: You have not been clear as to what filenames you want to use or what variable names you want to use within those files. Select the China site (in Chinese or English) for best site performance. Generate Variable Names with a Loop - MATLAB Answers - MathWorks it works if a put in the variable manually, but it only gives out black blocks, nothing, or dosnt even work if i try to construct the variables name. Change variable name in a loop - MATLAB Answers - MathWorks be useful. Find the treasures in MATLAB Central and discover how the community can help you! Skip to content . Other MathWorks country sites are not optimized for visits from your location. You can load the .mat file holding the list of variable in a struct by using load then you can extract the names of the variables using the fieldnames function Based on your location, we recommend that you select: . save variable with changing name - MATLAB Answers - MathWorks I am working with a code in which 50 variables have to be saved. *log((1+r_3)./(1-r_3)); and then save as z_3. This allows any type of result to be stored by index. With using a cell, the index can be used directly. To do this correctly, you need to use the "functional" form of save: Theme. Geometry nodes - Material Existing boolean value. A cell is a better solution, because in e.g. Unable to complete the action because of changes made to the page. How do I dynamically generate a file name for save in MATLAB Similar quotes to "Eat the fish, spit the bones". has no answer in MATLAB. For this case, I think the problem is the syntax for save. %03d instead of %d when generating your save_name variable. You can also select a web site from the following list. Theme Copy is a bad idea, the 2nd can be abbreviated a little bit: Forcing meta-data into variable names is slow and complex. However, considering that the answer will be a list of 401 values, perhaps they want a description instead of a list of numeric values. Based on your location, we recommend that you select: . Actually, I want to save a variable in a loop with a different name incorporating the index of the loop. What steps should I take when contacting another researcher after finding possible errors in their work? You can do any number of copies between variables, structure fields, or cell array elements and only a pointer to the original data is used to store the "copy". And I want to change different parameters, then training my system again. Other MathWorks country sites are not optimized for visits from your location. (which is undefined in your code, but presumably is defined in the workspace, thus also illustrating why experienced MATLAB users avoid scripts for reliable code). 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 offers. You may receive emails, depending on your. Sorted by: 4 You need the functional form of SAVE. Based on your location, we recommend that you select: . matlab - save variables to a mat file by reading variable names from Have another look at my answer: did I use the same variable. https://www.mathworks.com/matlabcentral/answers/376088-how-to-save-variable-with-different-name-inside-loop, https://www.mathworks.com/matlabcentral/answers/376088-how-to-save-variable-with-different-name-inside-loop#comment_522491, https://www.mathworks.com/matlabcentral/answers/376088-how-to-save-variable-with-different-name-inside-loop#answer_299112, https://www.mathworks.com/matlabcentral/answers/376088-how-to-save-variable-with-different-name-inside-loop#comment_522483, https://www.mathworks.com/matlabcentral/answers/376088-how-to-save-variable-with-different-name-inside-loop#comment_522489, https://www.mathworks.com/matlabcentral/answers/376088-how-to-save-variable-with-different-name-inside-loop#comment_522607. Same thing applies for cell, of course but I believe it is just a matter of choice. I want to change the variable name in each iteration, so I use eval function for naming like this dataset=rand (3); Thanks, but this is not the way that I want. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. Structs are much clearer than cells, if the data are related to a. and not to a numerical index. I am trying to implement this as Theme Copy for i=1:50 element_of_the_ensemble=i;%de 1 a 50 windX_in_the_node=vientoX_vector (:,element_of_the_ensemble); The last iteration of i will be i = 1189 . How to skip a value in a \foreach in TikZ? % SVMModel1 = fitcsvm(x1,y1,'Standardize',true,'KernelFunction','RBF', % SVMModel2 = fitcsvm(x2,y2,'Standardize',true,'KernelFunction','RBF', % SVMModel3 = fitcsvm(x3,y3,'Standardize',true,'KernelFunction','RBF', % SVMModel4 = fitcsvm(x4,y4,'Standardize',true,'KernelFunction','RBF', % SVMModel5 = fitcsvm(x5,y5,'Standardize',true,'KernelFunction','RBF', % SVMModel6 = fitcsvm(x6,y6,'Standardize',true,'KernelFunction','RBF', % SVMModel7 = fitcsvm(x7,y7,'Standardize',true,'KernelFunction','RBF', % SVMModel8 = fitcsvm(x8,y8,'Standardize',true,'KernelFunction','RBF', % SVMModel9 = fitcsvm(x9,y9,'Standardize',true,'KernelFunction','RBF', % SVMModel10 = fitcsvm(x10,y10,'Standardize',true,'KernelFunction','RBF', % SVMModel11 = fitcsvm(x11,y11,'Standardize',true,'KernelFunction','RBF', http://www.mathworks.com/matlabcentral/answers/304528-tutorial-why-variables-should-not-be-named-dynamically-eval. 5. Solving problem through better code design is much preferred. I am working with a code in which 50 variables have to be saved. Learn more about matlab, digital image processing MATLAB . C{k} = vertcat(S0(i:k*m1,:), S1(j:k*m2,:)); Every iteration of k, you throw away whatever was in C and replace it with a cell array containing empty entries. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. where is whole data? Is it possible to put the variable j into the save path somehow so that I get an ordered series of .mat files? How can I rename a group of variables in a loop in MATLAB? Is there an established system (intervals, total intake) for fueling over longer rides to avoid a drop in performance? How to save variable in loop with different name? - MATLAB Answers I am trying to implement this as. How to rename a variable in a loop in MATLAB? I have tried your suggestion but still something wrong, for the .mat file i have attached earlier,i have programmed the follwing using for loop unfortunately it overwrites the .mat file and display only the last iteration. Depending on the number of participants and conditions you can change from %03 to whatever suits your needs. Reload the page to see its updated state. Learn more about save file . % % [index,featureScore] = feature_rank(x7,y7,15,'Fisher_Score'). What happens when line 5 is executed? It is slow and buggy. I have variable with name x with varying size of some 10000*2. Since you want to also use a file name stored in a variable, command syntax isn't ideal as you'd have to use eval. 1. Why do microcontrollers always need external CAN tranceiver? And Xiangru and Wolfie, the save(fnSave, 'fnOpen') works as you suggested it would. I am getting that variable inside the for loop. 1 Link Dynamically naming variables is not recommended. Variable names must start with a letter and can be followed by letters, digits and underscores. Unable to complete the action because of changes made to the page. You can use the function form of the SAVE command: http://www.mathworks.com/help/techdoc/ref/save.html. MathWorks is the leading developer of mathematical computing software for engineers and scientists. Choose a web site to get translated content where available and see local events and offers. I know I should be using a for loop, but I cant figure out how to concatenate the string with the counter. I have variable with name x with varying size of some 10000*2. 1 Answer Sorted by: 0 You can exploit the dynamic field naming of the struct data type. method with an expensive conversion between a number and a string. Now I have a dallasTX.mat file, and the variable name inside is fnOpen. Also, structures gives the flexibility to store several data types, therefore this situation makes them more attractive. FAQ: How can I create variables A1, A2,,A10 in a loop? This does what you want without using eval. It is slow and buggy. https://www.mathworks.com/matlabcentral/answers/236354-saving-mat-files-in-a-for-loop, https://www.mathworks.com/matlabcentral/answers/236354-saving-mat-files-in-a-for-loop#comment_2181165, https://www.mathworks.com/matlabcentral/answers/236354-saving-mat-files-in-a-for-loop#answer_190339, https://www.mathworks.com/matlabcentral/answers/236354-saving-mat-files-in-a-for-loop#comment_480858, https://www.mathworks.com/matlabcentral/answers/236354-saving-mat-files-in-a-for-loop#comment_555482, https://www.mathworks.com/matlabcentral/answers/236354-saving-mat-files-in-a-for-loop#comment_695259, https://www.mathworks.com/matlabcentral/answers/236354-saving-mat-files-in-a-for-loop#comment_701032, https://www.mathworks.com/matlabcentral/answers/236354-saving-mat-files-in-a-for-loop#comment_748734, https://www.mathworks.com/matlabcentral/answers/236354-saving-mat-files-in-a-for-loop#comment_1594155, https://www.mathworks.com/matlabcentral/answers/236354-saving-mat-files-in-a-for-loop#comment_2343825, https://www.mathworks.com/matlabcentral/answers/236354-saving-mat-files-in-a-for-loop#answer_400824, https://www.mathworks.com/matlabcentral/answers/236354-saving-mat-files-in-a-for-loop#comment_765854, https://www.mathworks.com/matlabcentral/answers/236354-saving-mat-files-in-a-for-loop#comment_765857, https://www.mathworks.com/matlabcentral/answers/236354-saving-mat-files-in-a-for-loop#comment_765858, https://www.mathworks.com/matlabcentral/answers/236354-saving-mat-files-in-a-for-loop#comment_765866, https://www.mathworks.com/matlabcentral/answers/236354-saving-mat-files-in-a-for-loop#comment_765870, https://www.mathworks.com/matlabcentral/answers/236354-saving-mat-files-in-a-for-loop#comment_765875. Find centralized, trusted content and collaborate around the technologies you use most. (my_field) = k*2; end Stephen23 on 18 Mar 2022 ______________________________________________________________________________ _________________________________________________________________________? Unable to complete the action because of changes made to the page. . Check the following link: https://www.mathworks.com/matlabcentral/answers/304528-tutorial-why-variables-should-not-be-named-dynamically-eval A better approach would be saving them in a structure by using a for loop. Select the China site (in Chinese or English) for best site performance. To learn more, see our tips on writing great answers. Find the treasures in MATLAB Central and discover how the community can help you! The value stored there needs to be answer given for the first question. Reload the page to see its updated state. Reload the page to see its updated state. If only you were not. Reload the page to see its updated state. Accelerating the pace of engineering and science. "Autonaming for every loop condition will be useful". The response of the participants is saved in form or .mat file. Variable names can contain up to 63 characters ( as of MATLAB 6.5 and newer). Saving .mat files in a 'for' loop - MATLAB Answers - MathWorks 2. It will quickly become unmanageable and there are much better ways. Follow 8 views (last 30 days) Show older comments Prakhar Deroliya on 21 Sep 2019 0 Link Translate Commented: Walter Roberson on 21 Sep 2019 i want to save each loop resust in varible of drought. Autonaming for every loop condition will. Create the desired name of the file as a string or character variable, then use that variable with the, Thank you very much. Thank you for your help,i have tried the above section of code ,by doing so it is possible to allocate 10 diffrent .mat files but can't get find the values as i desired.Let me make things clear: given the attached timeseries data named Vb1nicw.mat,it is desired to save the 1D data field only with 10 diffrent .mat file name.. "it is desired to save the 1D data field only with 10 diffrent .mat file name. PDF A Quick Tutorial on MATLAB - Electrical Engineering and Computer Science Find the treasures in MATLAB Central and discover how the . Select the China site (in Chinese or English) for best site performance. unfortunatly the above code saves only the last iteration (Nth iteration),any help appreciated to access all the N elements,and eventually creat N math files. Change variable name on each iteration in for loop MATLAB, Create a loop using part of variable name in MATLAB, Changing variable names within a loop in MATLAB, renaming variable's name while working on my script, in matlab. How to save variable in loop with different name? Unable to complete the action because of changes made to the page. "and therfore the diffrent variables should be named diffrently,". This statement is called a _____________. I am working on a physics project and I am using MATLAB to acquire some data. is that it forces you to write slow, complex, buggy code that obfuscates the code intent and makes debugging much harder: https://www.mathworks.com/matlabcentral/answers/304528-tutorial-why-variables-should-not-be-named-dynamically-eval. From the documentation, when using the command. Accelerating the pace of engineering and science. I would like to save the response such that NH_ID_Condition. . Thanks a lot Walter. Reload the page to see its updated state. This statement is called a _____. 6 children are sitting on a merry-go-round, in how many ways can you switch seats so that no one sits opposite the person who is opposite to them now? The last iteration of j will be j = 1090. But please help me with getting something like C{1}, C{2}.C{100}. The error I get when I do the above is: Thanks for the answer. matlab - For loop running over different variables - Stack Overflow Other MathWorks country sites are not optimized for visits from your location. %method 1 for k=1:N temp_var = strcat ( 'variable_',num2str (k) ); eval (sprintf ('%s = %g',temp_var,k*2)); end % method 2, more advisable for k=1:N my_field = strcat ('v',num2str (k)); variable. MathWorks is the leading developer of mathematical computing software for engineers and scientists. Can somebody please tell if there exists a way to rename a variable in each iteration of a loop in MATLAB? Choose a web site to get translated content where available and see local events and offers. How do I store enormous amounts of mechanical energy? Other MathWorks country sites are not optimized for visits from your location. https://la.mathworks.com/matlabcentral/answers/376088-how-to-save-variable-with-different-name-inside-loop, https://la.mathworks.com/matlabcentral/answers/376088-how-to-save-variable-with-different-name-inside-loop#comment_522491, https://la.mathworks.com/matlabcentral/answers/376088-how-to-save-variable-with-different-name-inside-loop#answer_299112, https://la.mathworks.com/matlabcentral/answers/376088-how-to-save-variable-with-different-name-inside-loop#comment_522483, https://la.mathworks.com/matlabcentral/answers/376088-how-to-save-variable-with-different-name-inside-loop#comment_522489, https://la.mathworks.com/matlabcentral/answers/376088-how-to-save-variable-with-different-name-inside-loop#comment_522607. Copy. Specifically, I want to do the following: z_1 = .5. Find the treasures in MATLAB Central and discover how the community can help you! 1 Link Translate Dynamically naming variables is not recommended. any help would be much appreciated, thanks! MATLAB - changing variable name with each iteration? - Physics Forums Accepted Answer Jan on 26 Dec 2012 39 Link Translate Edited: Jan on 24 Apr 2017 Please don't do this! Or if you have R2017a or later you can use your original line, but change every ' to " such as "june1965", "june1969" MathWorks is the leading developer of mathematical computing software for engineers and scientists. I can work with this now. Reload the page to see its updated state. Answered: rahul PAL on 30 Nov 2022 I am doing a test study in which I test the participants for three conditions. How to save a file using a variable in the name? save variable with changing name. Just save your data in one array using indexing. rev2023.6.27.43513. instead only the value from the top left is stored there. I am doing a test study in which I test the participants for three conditions. Do physical assets created directly from GPLed, copyleft digital designs (not programs or libraries) acquire the same license? Your variables will be stored in a struct, which will be nice. Segn su ubicacin geogrfica, recomendamos que seleccione: . Is there an established system (intervals, total intake) for fueling over longer rides to avoid a drop in performance? "Dynamically naming variables is not recommended", . By the time you reach the end of the k loop, only the last of the entries will have anything stored in it. Each participant is given an ID (1,2,etc.). Accelerating the pace of engineering and science. digital image processing MATLAB. Autonaming for every loop condition will be useful. The _____ will be incremented by a specific value until its final value is reached (stop value). This allows any type of result to be stored by index. You may receive emails, depending on your. Does the center, or the tip, of the OpenStreetMap website teardrop icon, represent the coordinate point? mat files extracted from a timeseries data of x with data and time fields.I am interested on the data field.I have tried the follwing: but still something wrong,can you explain it more how to fix the bug, which you never use. There is no "right" answer to the question because it uses terms that have not been sufficiently defined. This show result into file1, file9 somthing like this. Therefore I agree with Guillaume. Names of variables to save, specified as one or more character vectors or strings. 3 Answers Sorted by: 12 Based on your comment, I suggest using a cell array. How many sine waves are produced by this Matlab routine _______? I strongly suggest that you use. Matlab saving file as name defined within other variable Choose a web site to get translated content where available and see local events and offers. 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