Obviously renaming the 50 odd arrays manually would be quicker than getting a straight answer from here! Convert variable name to string in Matlab? US citizen, with a clean record, needs license for armored car with 3 inch cannon. I want to create a structure with a variable name in a matlab script. You can also select a web site from the following list. " i come on here all i see are sarcastic unhelpful comments, so id idnt relly need a lecture on why not to use it.". By clicking Post Your Answer, you agree to our terms of service and acknowledge that you have read and understand our privacy policy and code of conduct. Reference equality in Matlab struct. 584), Statement from SO: June 5, 2023 Moderator Action, Starting the Prompt Design Site: A New Home in our Stack Exchange Neighborhood. Choose a web site to get translated content where available and see local events and offers. Do axioms of the physical and mental need to be consistent? Or are they loaded from a file? Undefined function or variable 'chem3'. You can also select a web site from the following list. Varname=matlab.lang.makeValidName (strcat ('Indiv_Reg_',Month)) end. It's hard to understand what context would cause someone to feel the need to repeatedly dynamically change a variable name so, given no information on what exactly goes wrong it is not really worth trying to suggest anything. Find centralized, trusted content and collaborate around the technologies you use most. Problem involving number of ways of moving bead. The left-hand-side of the = must be a valid variable name, while the right-hand-side must be a valid expression. \usepackage. Working with struct fields it is very easy: Then you can save these to a mat file still as individual variables e.g. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. MathWorks is the leading developer of mathematical computing software for engineers and scientists. Matlab is case sensitive, i.e., small letters and capital letters are treated differently. How can I use a variable to create MATLAB elements? @Malcolm Tisdale: of course I am happy to help you organize your data: well organized data makes code much simpler and easier to write, so is well worth the effort. How to properly align two numbered equations? https://www.mathworks.com/matlabcentral/answers/833228-how-to-refer-variable-from-string-name, https://www.mathworks.com/matlabcentral/answers/833228-how-to-refer-variable-from-string-name#comment_1527833, https://www.mathworks.com/matlabcentral/answers/833228-how-to-refer-variable-from-string-name#comment_1528283, https://www.mathworks.com/matlabcentral/answers/833228-how-to-refer-variable-from-string-name#comment_1529188, https://www.mathworks.com/matlabcentral/answers/833228-how-to-refer-variable-from-string-name#comment_1529993, https://www.mathworks.com/matlabcentral/answers/833228-how-to-refer-variable-from-string-name#comment_1530063, https://www.mathworks.com/matlabcentral/answers/833228-how-to-refer-variable-from-string-name#answer_702933, https://www.mathworks.com/matlabcentral/answers/833228-how-to-refer-variable-from-string-name#comment_1529998, https://www.mathworks.com/matlabcentral/answers/833228-how-to-refer-variable-from-string-name#answer_702543, https://www.mathworks.com/matlabcentral/answers/833228-how-to-refer-variable-from-string-name#comment_1528268, https://www.mathworks.com/matlabcentral/answers/833228-how-to-refer-variable-from-string-name#comment_1528273, https://www.mathworks.com/matlabcentral/answers/833228-how-to-refer-variable-from-string-name#comment_1528303, https://www.mathworks.com/matlabcentral/answers/833228-how-to-refer-variable-from-string-name#comment_1528388. Connect and share knowledge within a single location that is structured and easy to search. Our question to you is, are you willing to risk taking some criticism to get a better code that works and fixes your problem? MathWorks is the leading developer of mathematical computing software for engineers and scientists. Is "Clorlina" a name of a person in Spain or Spanish-speaking regions? How could I justify switching phone numbers from decimal to hexadecimal? I guess there is a more convenient way than this. What does that mean? Did Roger Zelazny ever read The Lord of the Rings? How you created that data? It's essentially a wrapper for mat2cell so there might be a speed benefit to just using that on its own and skipping all the error checking. declval<_Xp(&)()>()() - what does this mean in the below context? Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide, The future of collective knowledge sharing. However, there are many ways to get similar behavior. Convert variable name to string in Matlab? Variable names | Unfortunately I do not know how to use the string to reference the table which has the same name. aY is one column of the data in the test tables, % i am now trying to edit the current test data, By far the best solution is to avoid this situation entirely. So no, you do not have a reliable, working code. Option clash for package fontspec. Making statements based on opinion; back them up with references or personal experience. Similar quotes to "Eat the fish, spit the bones". Convert variable name to string in Matlab? Unfortunately I do not know how to use the string to reference the table which has the same name. Did you write them out by hand? To subscribe to this RSS feed, copy and paste this URL into your RSS reader. Thanks for contributing an answer to Stack Overflow! Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. It has been very difficult to use google, MATLAB documentation, I've spent a few hours, and I cannot learn how to. I need to know how to use variable with name specified in string. How to turn a string into a variable name within a loop? To subscribe to this RSS feed, copy and paste this URL into your RSS reader. Also each data file starts out as a csv file. I want to generate a variable name of the form: My answer to this question is "Are you sure you really want to do that?". To check whether a variable name is already used with function: This function (generate variable name) is used to construct a valid and unique variable name. Thanks for contributing an answer to Stack Overflow! From where does it come from, that the head and feet considered an enemy? You may receive emails, depending on your. Crash normally means that matlab terminates and thus that you've encountered a serious bug. I have an array of string names for variables I need to use, and variables with such names in workspace. In the USA, is it legal for parents to take children to strip clubs? MATLAB is case sensitive, so A and a are not the same variable. Asking for help, clarification, or responding to other answers. Accelerating the pace of engineering and science. Each of these would imply a different way to arrange your data, because depending on how you nest your data you can easily access the required parts using indexing, and this makes the code simpler and more efficient. Connect and share knowledge within a single location that is structured and easy to search. Unless you have a good reason to do this, you are better off making a cell array, array of structures, vector, or something else. What i do know is it works ok from the command but crashes when run in my program. Asking for help, clarification, or responding to other answers. Matlab uses = to assign a value to a variable. 1 See array2table: a = rand (8,4); [l, w] = size (a); j = 1:l; Items = cell (1, w + 1); Items {1} = 'counter'; for ii = 2:length (Items) Items {ii} = sprintf ('item%u', ii - 1); end t = array2table ( [j', a], 'VariableNames', Items); Edit: It seems like there's a lot of overhead associated with array2table. How to Use Logical Operator Within If Statements in MATLAB? My quick search didn't turn up anything, but that might help you w/ Googling. indices) in variable names. To iterate through the rows of xmat is easy. MATLAB: Concatenate number value as string, How do I concatenate a string stored in variable and a number in MATLAB, concatenation between variable and string. How can I get Matlab to use the variable value instead of name, Drawing contours of polar integral function, US citizen, with a clean record, needs license for armored car with 3 inch cannon, Switches in chain topology for ~40 devices. There is a file that someone else has produced so i dont relly want to go into taking their code apart, the output is a struct which contains fields and values. Can you legally have an (unloaded) black powder revolver in your carry-on luggage? Following this code, I should include inside table every single a(:,i), i = 1,,20, plus I would have to do the same for the Items list. -ing into an output variable instead of simply spamming variables into the workspace: Note that dynamically accessing variable names is one way that beginners force themselves into writing slow, buggy, complex code that is hard to debug. I had one of my non-programming colleagues ask the same question last week. Element 1 of x is of size [3 3]. I want each of these arrays saved into a mat file not within the stuct. This is pretty clumsy, but I think something like this will do what you want: % names of the variables you want to process, % save all workspace variables into a temporary mat file, % load all variables into a "global" structure, % get the mean of the first named variable, % get the mean of the second named variable. Not sure if I understood you correctly, though. A variable name should start with a letter followed by digits, underscores, or letters. Similar quotes to "Eat the fish, spit the bones". Problem involving number of ways of moving bead. "the output is a struct which contains fields and values. The names will be different all the time -- I cant just write mean(m1_n) I need to do it through A and indexing, but in A names are strings. *f(x)), in this case matlab would evaluate g(3) on every call. If you don't care that you shouldn't be using. the variables are different size number arrays. https://la.mathworks.com/matlabcentral/answers/833228-how-to-refer-variable-from-string-name, https://la.mathworks.com/matlabcentral/answers/833228-how-to-refer-variable-from-string-name#comment_1527833, https://la.mathworks.com/matlabcentral/answers/833228-how-to-refer-variable-from-string-name#comment_1528283, https://la.mathworks.com/matlabcentral/answers/833228-how-to-refer-variable-from-string-name#comment_1529188, https://la.mathworks.com/matlabcentral/answers/833228-how-to-refer-variable-from-string-name#comment_1529993, https://la.mathworks.com/matlabcentral/answers/833228-how-to-refer-variable-from-string-name#comment_1530063, https://la.mathworks.com/matlabcentral/answers/833228-how-to-refer-variable-from-string-name#answer_702933, https://la.mathworks.com/matlabcentral/answers/833228-how-to-refer-variable-from-string-name#comment_1529998, https://la.mathworks.com/matlabcentral/answers/833228-how-to-refer-variable-from-string-name#answer_702543, https://la.mathworks.com/matlabcentral/answers/833228-how-to-refer-variable-from-string-name#comment_1528268, https://la.mathworks.com/matlabcentral/answers/833228-how-to-refer-variable-from-string-name#comment_1528273, https://la.mathworks.com/matlabcentral/answers/833228-how-to-refer-variable-from-string-name#comment_1528303, https://la.mathworks.com/matlabcentral/answers/833228-how-to-refer-variable-from-string-name#comment_1528388. 1 You want to look for pointers in MATLAB. How you created that data? analemma for a specified lat/long at a specific time of day? Is "Clorlina" a name of a person in Spain or Spanish-speaking regions? Then looping over them and importing the data is trivially easy. Theoretically can the Ackermann function be optimized? Disclaimer: No sarcasm was intended in this post. MATLAB variable names consist of letters, numbers and the underscore "_", You're complaining about getting sarcam yet your comment and question appear very antagonistic.
