You just forgot to use the filename variable. Is it possible? The parametric sweep is for not more than 10 values, so the last part is not an issue. Save them as elements of a cell array instead, when you first create them. example save (filename,variables) saves only the variables or fields of a structure array specified by variables. Reload the page to see its updated state. For example, you can save data to a subset of a variable in a MAT-file or read a subset of a variable into the MATLAB workspace. : However your code would be simpler and more efficient if you simply used exactly the same variable name in every file, e.g. Memory errors. Choose a web site to get translated content where available and see local events and offers. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. filename = fullfile(destination, [x5_1_1_0. Reload the page to see its updated state. Can I safely temporarily remove the exhaust and intake of my furnace? false MAT-file object has read-only access to the MAT-file. You can also select a web site from the following list. Specify the variable in the MAT-file using dot notation similar to accessing fields of structure arrays. Save data to a subset of a variable y in the file myFile2.mat using the MAT-file object. https://www.mathworks.com/matlabcentral/answers/597430-automatically-naming-mat-files-with-variable-names, https://www.mathworks.com/matlabcentral/answers/597430-automatically-naming-mat-files-with-variable-names#answer_498064, https://www.mathworks.com/matlabcentral/answers/597430-automatically-naming-mat-files-with-variable-names#comment_1018354, https://www.mathworks.com/matlabcentral/answers/597430-automatically-naming-mat-files-with-variable-names#answer_498055, https://www.mathworks.com/matlabcentral/answers/597430-automatically-naming-mat-files-with-variable-names#comment_1018315, https://www.mathworks.com/matlabcentral/answers/597430-automatically-naming-mat-files-with-variable-names#comment_1018339. Based on your location, we recommend that you select: . So rewrite that section of your code as: and also you need to do what I said before: You may receive emails, depending on your. false Disable write access to the MAT-file from the MAT-file object. You may receive emails, depending on your. Based on your location, we recommend that you select: . Find the treasures in MATLAB Central and discover how the community can help you! For a project I would like to make file names based on the input of my matlab code. Create a MAT-file object connected to the existing MAT-file. However since I was calling this inside a function I used 'caller' instead of 'base' but my .m function file has nested functions in it. Get list of variables in MAT-file, with sizes and types. 's advice. Select the China site (in Chinese or English) for best site performance. Reload the page to see its updated state. Here I want to read the file name and replace the last two characters with zero. For example, the following code only stores a single copy. Other MathWorks country sites are not optimized for visits from your location. For this case, I think the problem is the syntax for save. You can exploit the dynamic field naming of the struct data type. Unable to complete the action because of changes made to the page. varlist = who(matObj) lists alphabetically all variables in the MAT-file associated with matObj. How do I provide the function names so that each parameter gets its own .mat file after each loop completion? Again, thank you so much, you have saved me thousands of hours. Find the treasures in MATLAB Central and discover how the community can help you! Data is a matrix whose values is decided in another loop. Based on your location, we recommend that you select: . matObj = matfile(filename) creates a matlab.io.MatFile object connected to the MAT-file specified by filename. example Enable write access by setting Writable to true. If filename exists, save overwrites the file. In the above, the other variables that are single-valued are inherent in the definition of the anonymous function at the time it is defined. Other MathWorks country sites are not optimized for visits from your location. Get array dimensions of variable in MAT-file. The cause of your difficulties lies in the unfortunate design decision to force meta-data into the variable names. Maybe, a simples way to answer that need is to do the following: I tried that. Other MathWorks country sites are not optimized for visits from your location. Save y to the MAT-file using the MAT-file object. 1 Answer Sorted by: 0 You can exploit the dynamic field naming of the struct data type. Choose a web site to get translated content where available and see local events and offers. Then save all variables or a list of variables using, to generate filenames with numbered filenames, like. Something like: 'I want to save the variable under the name:', thank you that worked only had to change order like this save('Data.mat', '-struct','S'). Would limited super-speed be useful in fencing? You may receive emails, depending on your. The data can be retrieved with load. Other MathWorks country sites are not optimized for visits from your location. https://www.mathworks.com/matlabcentral/answers/449422-how-to-generate-a-file-name-by-combining-variable-characters-based-on-the-input-of-the-matlab, https://www.mathworks.com/matlabcentral/answers/449422-how-to-generate-a-file-name-by-combining-variable-characters-based-on-the-input-of-the-matlab#answer_364819, https://www.mathworks.com/matlabcentral/answers/449422-how-to-generate-a-file-name-by-combining-variable-characters-based-on-the-input-of-the-matlab#answer_364820, https://www.mathworks.com/matlabcentral/answers/449422-how-to-generate-a-file-name-by-combining-variable-characters-based-on-the-input-of-the-matlab#answer_364825. Accelerating the pace of engineering and science. However, manually entering the name for upwards of 16,000 images sounds absolutely awful. You can also select a web site from the following list. you should pass the string of the name of your variable, use this: that does NOT solve the problem, same error message. where "name" is manually entered each time. matObj = matfile(filename,'Writable',isWritable) enables or disables write access to the file. [~,nnn] = xlsread([filepath, filename], i. Had the same thing in mind but messsed up my answer. The way I get the name is this: [filename, filepath, ~] = uige. Are Prophet's "uncertainty intervals" confidence intervals or prediction intervals? Based on your location, we recommend that you select: . Find the treasures in MATLAB Central and discover how the community can help you! Select the China site (in Chinese or English) for best site performance. When any one of the copies is written to, the copy that is written to will be fully copied at that point, but all the other copies that are not written to will continue to point back to the original copy. allDims = size(matObj,variable) returns the size of each dimension of the specified variable in the file corresponding to matObj. The MAT-file object does not support indexing into: The MAT-file object does not support evaluating function handles using the m output. Find the treasures in MATLAB Central and discover how the community can help you! It is slow and buggy. I get this error: Attempt to add "
" to a static workspace. Another complexity is that the length of the "b_value"-vector (in this case 4 values, but it could also be 2 or 10 values) changes based on the input of the program. To be clear, I'm not running a loop in matlab, I'm using Slidebook (image capturing and processing software, where my images are stored) to perform the "loop"ing aspect, simply because I have to pull each of the 6 variables from each image contained within slidebook. test1.mat, that should contain a1, then test2.mat should contain a2 and so on. You can also select a web site from the following list. Select the China site (in Chinese or English) for best site performance. MathWorks is the leading developer of mathematical computing software for engineers and scientists. Other MathWorks country sites are not optimized for visits from your location. If the file does not exist, matfile creates a Version 7.3 MAT-file on the first assignment to a variable. You may receive emails, depending on your. MathWorks is the leading developer of mathematical computing software for engineers and scientists. example save (filename,variables) saves only the variables or fields of a structure array specified by variables. Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide, The future of collective knowledge sharing, save variables to a mat file by reading variable names from another mat file, The cofounder of Chef is cooking up a less painful DevOps (Ep. https://www.mathworks.com/matlabcentral/answers/468666-file-name-as-value-of-a-variable, https://www.mathworks.com/matlabcentral/answers/468666-file-name-as-value-of-a-variable#answer_380600, https://www.mathworks.com/matlabcentral/answers/468666-file-name-as-value-of-a-variable#comment_717845, https://www.mathworks.com/matlabcentral/answers/468666-file-name-as-value-of-a-variable#comment_717869. The output allDims is a 1-by-m vector, where m = ndims(variable). Specify the variable in the MAT-file using dot notation similar to accessing fields of structure arrays. Read the variable topo from the file using the MAT-fie object. Copy. assuming that the "name" is the only string to contain the '_' underscore character: 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. filename can include a full or partial path; Otherwise, matfile searches for the file along the MATLAB search path. Does this solution result in making a copy of the data in memory, or is matlab smart enough to avoid this? Choose a web site to get translated content where available and see local events and offers. Connect and share knowledge within a single location that is structured and easy to search. Based on your location, we recommend that you select: . Write access status of the MAT-file object, returned as either true or false. . Accelerating the pace of engineering and science. This is the code I have that needs some adjustments. If filename exists, save overwrites the file. Efficient partial loading and saving requires Version 7.3 MAT-files. Does not support writing (assigning values) to a subset of a sparse array by indexing. Based on your location, we recommend that you select: . What are the white formations? Can you make an attack with a crossbow and then prepare a reaction attack using action surge without the crossbow expert feat? Any and all help would be greatly appreciated, I am super stuck at the moment. Save data to a subset of a variable y in the file myFile2.mat using the MAT-file object. It has variables say var1="loop_no", var2="phase", var3="flow". Matlab uses copy-on-write and does not make a copy unless changes are made to one of the variables. The next four lines are just pointers back to the original data. of Reload the page to see its updated state. You can also select a web site from the following list. The MAT-file object allows you to access and change variables directly in a MAT-file, without having to load the variables into memory. The save function is located at the end of a for loop and, therefore, it is needed to be saved with a variable name changing each loop iteration. errors. Enable write access to the MAT-file, myFile.mat, when you create the object. Specify isWritable as true or false. You may receive emails, depending on your. https://www.mathworks.com/matlabcentral/answers/351068-how-to-save-a-file-with-name-saved-in-a-variable, https://www.mathworks.com/matlabcentral/answers/351068-how-to-save-a-file-with-name-saved-in-a-variable#comment_473565, https://www.mathworks.com/matlabcentral/answers/351068-how-to-save-a-file-with-name-saved-in-a-variable#comment_473568.
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