You can also select a web site from the following list. https://it.mathworks.com/matlabcentral/answers/1979614-name-must-be-a-text-scalar, https://it.mathworks.com/matlabcentral/answers/1979614-name-must-be-a-text-scalar#comment_2774379, https://it.mathworks.com/matlabcentral/answers/1979614-name-must-be-a-text-scalar#comment_2774404. "Error using save Must be a string scalar or character vector." - but at the command line when I stop gives me this error. The result from p2 is always 1. Besim Sen on 9 Jun 2021. thanks broo. Unable to complete the action because of changes made to the page. When I type this at the command line: ['data/test',num2str(n), '.mat'] Unable to complete the action because of changes made to the page. Error: Error using save Must be a string scalar or character vector. The first die (d1) returns a number from 1 through 6, but the second die (d2) always returns the number 1. I am finding it difficult to understand how a string can be a scalar (to me, scalars represent a multiplier? , which seems to exist (maybe) but doesn't contain character data. Did you read my answer? more information, see Run MATLAB Functions in Thread-Based Environment. https://www.mathworks.com/matlabcentral/answers/363019-error-using-save-argument-must-contain-a-character-vector, https://www.mathworks.com/matlabcentral/answers/363019-error-using-save-argument-must-contain-a-character-vector#answer_287526, https://www.mathworks.com/matlabcentral/answers/363019-error-using-save-argument-must-contain-a-character-vector#comment_496743, https://www.mathworks.com/matlabcentral/answers/363019-error-using-save-argument-must-contain-a-character-vector#comment_691126, https://www.mathworks.com/matlabcentral/answers/363019-error-using-save-argument-must-contain-a-character-vector#comment_691248. Spontaneous data: Use the full time window to be analyzed, with a minimum of 30s of data.. Ok good. And where can I add filepath? Unable to complete the action because of changes made to the page. If your function For Making statements based on opinion; back them up with references or personal experience. anonymous function. Is the signal in the .txt file? I am not quite sure what you are trying to achieve by the command -, https://www.mathworks.com/help/matlab/ref/load.html. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. What Is A Scalar String? - MATLAB Answers - MATLAB Central so which command can I use to pick the first value from the table which I got after clearing the signal from the first part of the script as S1 and than S2,S3,and S4. Reload the page to see its updated state. For the record, when I stop at the breakpoint, typing this at the command line works: Theme Copy save data/test1.mat U U_old dt Description example mkdir folderName creates the folder folderName. Create the following function in a folder on your MATLAB path. Seleziona un sito web per visualizzare contenuto tradotto dove disponibile e vedere eventi e offerte locali. example save (filename,variables) saves only the variables or fields of a structure array specified by variables. If it's a string array, then it's correct as is. ? I am ultimately trying to use a dynamic functional connectivity and leakage correction (OSL) tools that have only been verified using the beamforming solution, and not with MNE. You need to specify the names of the variables you want to save as character vector, meaning that you do not want to actually pass the variable itself as argument of save. To provide a type for a string scalar to fiaccel: Define a string scalar. Where do you expect "load" to be defined? Based on your location, we recommend that you select: . By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. In consequence, you cannot obtain the i.th element of this variable, because this variable does not exist at all. access to private or local functions. Choose a web site to get translated content where available and see local events and offers. MathWorks is the leading developer of mathematical computing software for engineers and scientists. and necessary ' ') in your used syntax and here is the correct syntax: % Z is already residing in your workspace, MATLAB: Save uniquely named variables in loop to a certain location, MATLAB: Could not save the variable in a specific name, Saving an imported.txt file as .mat file in a for loop using the same original file name. Choose a web site to get translated content where available and see local events and offers. Chances are m1 is either a real number with some fractional part, or a matrix, or a negative number, or some other illegal entry. Note that you should use FULLFILE instead of concatenating text together. Hassan Ashraf on 28 Jun 2019 0 Link Translate Commented: Hassan Ashraf on 28 Jun 2019 Accepted Answer: Steven Lord I am trying to save some files iteratively in a loop anf getting below error. At the time the user got the error, n was 1. Other MathWorks country sites are not optimized for visits from your location. Yu Li on 14 Sep 2018 Thank you. is a cell array of character vectors, you'll need to use. str2func creates the function handle, but MATLAB throws an error when you invoke the function handle. Find the treasures in MATLAB Central and discover how the community can help you! Thank you David and Walter for further explaining what a Scalar String means. 1. Please help! Note that you should use FULLFILE instead of concatenating text together. rev2023.6.27.43513. Not the answer you're looking for? MathWorks is the leading developer of mathematical computing software for engineers and scientists. What Is A Scalar String? - MATLAB Answers - MATLAB Central - MathWorks You can also select a web site from the following list: Select the China site (in Chinese or English) for best site performance. A=importdata ('rain.txt'); This will create a struct A with A.data containing your required values. So, try to trace the value of "Liqdensity" you are passing, by debugging and make sure you are passing correct type of argument. Choose a web site to get translated content where available and see local events and offers. I wan to use the datetime() function to name a folder. Select the China site (in Chinese or English) for best site performance. at the command line when I stop gives me this error. 6 Link Edited: Cam Salzberger on 24 Oct 2017 Hello Marki, I assume that you are trying to save your data variable to a MAT file entitled part_1.mat? How to save .mat files of multiple files with their respective name, Matlab saving a .mat file with a variable name. ). I wan to use the datetime() function to name a folder. See: but what about this error I am getting ,I have changed the symbol from signal to stress. Reload the page to see its updated state. Saving a matrix in Matlab in a folder different from the working directory? This can be done with a simple Matlab with a few lines of code: load the file and loop to save the various . Workspace variables are not available to the Accepted Answer: A. Sawas I'm getting the error when I run the following line: Theme Copy save ( ['data/test',num2str (n),'.mat'],U,U_old,dt); where n is my loop index. Hover over m1 when you've stopped there at a breakpoint. You imported the data and stored the stress values etc. str = "Hello, world". s1 should get the value from the structure instead of using, If you want to get the first stress value - access it by indexing through, The data from the 'rain.txt' was used to plot the graph between stress and time and than when I found the peaks and valley I sorted the signal out so that I could clear the signal and get one table which you could see in the script is named as, .Now I would like to extract the first value from this table. Other MathWorks country sites are not optimized for visits from your location. The value must be a character vector or a string scalar error | App Description. Choose a web site to get translated content where available and see local events and offers. 584), Improving the developer experience in the energy sector, Statement from SO: June 5, 2023 Moderator Action, Starting the Prompt Design Site: A New Home in our Stack Exchange Neighborhood. Christoph on 19 Jun 2012. hi namrata, you should check if m1 is a scalar. Select a Web Site. I generated a struct file and tried to save it, but Matlab occurs error: The argument to -STRUCT must be the name of a scalar structure variable. Import several structures from one matrix .mat file "Error using save Must be a string scalar or character vector." - but For example in C if you have Unable to complete the action because of changes made to the page. defined as function inputs. For your case, something like this: Two very tiny flaws (e.g. 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. . I suppose the reason lies in the replace function. Reload the page to see its updated state. I know I can use. One day maybe i will get the hang of this. MathWorks is the leading developer of mathematical computing software for engineers and scientists. fiaccel myFunction -args {t} Provide a Constant String Scalar Input You may receive emails, depending on your. Find the treasures in MATLAB Central and discover how the community can help you! Therefore, include values in the Best Answer You need to enclose the variable names with qoutations like this: save ( [ 'data/test' ,num2str (n), '.mat' ], 'U', 'U_old', 'dt' ); Related Solutions : = = = [ 'synthetic_data' num2str ( 1) '.mat'] ;save (filename, 'Z'); % Z is already residing in your workspace If you want to build a longer (in terms of, arrays, combine them with +. @Prateek Srivastava: There is no variable called "load" in your posted code. You can also select a web site from the following list. my mistake,actually I changed the name from. Reload the page to see its updated state. MATLAB copyfile error: argument must contain a string Does the "Scalar String" defintion mean single elements comprising of multiple strings, for example: "Todays" "Date" "Is" "June" "24th," "2019", A scalar string is simply a string that is not an array of stringssee, https://www.mathworks.com/help/fixedpoint/ug/code-generation-for-strings.html. abs(s2-s1)>=abs(s2-s3),abs(s3-s4)>=abs(s2-s3); What is the purpose of the part behind the comma? Perhaps you want: "sign" is a built-in function. Theme. Jay on 24 Jun 2019 0 Translate Commented: Jay on 24 Jun 2019 Can someone please tell me what is meant by "scalar string object"? But the error is telling you that "S" is NOT a structure. fh = str2func(str) constructs a function You want to access the element not via a 'load' command but using vector indexing. MathWorks is the leading developer of mathematical computing software for engineers and scientists. If parentFolder does not exist, MATLAB attempts to create it. The quotes around the U and so on are the important part for your problem; the sprintf is just a cleaner way of creating the file name. Must be a string scalar or character vector. - MATLAB Answers - MATLAB actual_time = fullfile(replace(actual_time. to go into debug mode when your error is hit, and see what the issue is: You may receive emails, depending on your. Based on your location, we recommend that you select: . Choose a web site to get translated content where available and see local events and offers. handle, fh, from a function name or text representation of an Matlab's 'save' function - how to name the variable inside the .mat file same as file name? vector, and then convert it back to a handle with If folderName exists, MATLAB issues a warning. If you could just run the script you would come to know which data I am talking about. Maybe you want: abs(s2-s1)>=abs(s2-s3) & abs(s3-s4)>=abs(s2-s3), abs(s2-s1)>=abs(s2-s3) | abs(s3-s4)>=abs(s2-s3), abs(s2-s1)>=abs(s2-s3) , abs(s3-s4)>=abs(s2-s3), am trying to extract the first four values from my signal, The symbol "load" was not defined as a variable. Why do I receive an error about a SWITCH expression when using ODE15S within MATLAB? A simplified code: Now the condition of the IF command is "x == 1". I did what you said but still there is one error it is showing: Subscript indices must either be real positive integers or logicals. Copy. 1 Link eval () is defined only for character vectors and string scalars. Name must be a text scalar. Save matrix with specific file name matlab - Stack Overflow Theme Copy Accelerating the pace of engineering and science. What steps should I take when contacting another researcher after finding possible errors in their work? Temporary policy: Generative AI (e.g., ChatGPT) is banned. Is there any other way to do this? Select the China site (in Chinese or English) for best site performance. It is not defined for numeric values, and it is not defined for symbolic expressions. https://www.mathworks.com/matlabcentral/answers/373874-error-using-load-must-be-a-string-scalar-or-character-vector, https://www.mathworks.com/matlabcentral/answers/373874-error-using-load-must-be-a-string-scalar-or-character-vector#comment_517993, https://www.mathworks.com/matlabcentral/answers/373874-error-using-load-must-be-a-string-scalar-or-character-vector#comment_517997, https://www.mathworks.com/matlabcentral/answers/373874-error-using-load-must-be-a-string-scalar-or-character-vector#comment_518008, https://www.mathworks.com/matlabcentral/answers/373874-error-using-load-must-be-a-string-scalar-or-character-vector#comment_518014, https://www.mathworks.com/matlabcentral/answers/373874-error-using-load-must-be-a-string-scalar-or-character-vector#comment_518367, https://www.mathworks.com/matlabcentral/answers/373874-error-using-load-must-be-a-string-scalar-or-character-vector#answer_297114, https://www.mathworks.com/matlabcentral/answers/373874-error-using-load-must-be-a-string-scalar-or-character-vector#comment_518060, https://www.mathworks.com/matlabcentral/answers/373874-error-using-load-must-be-a-string-scalar-or-character-vector#comment_518114, https://www.mathworks.com/matlabcentral/answers/373874-error-using-load-must-be-a-string-scalar-or-character-vector#comment_518117, https://www.mathworks.com/matlabcentral/answers/373874-error-using-load-must-be-a-string-scalar-or-character-vector#comment_518303, https://www.mathworks.com/matlabcentral/answers/373874-error-using-load-must-be-a-string-scalar-or-character-vector#comment_518368, https://www.mathworks.com/matlabcentral/answers/373874-error-using-load-must-be-a-string-scalar-or-character-vector#answer_297263, https://www.mathworks.com/matlabcentral/answers/373874-error-using-load-must-be-a-string-scalar-or-character-vector#comment_518432, https://www.mathworks.com/matlabcentral/answers/373874-error-using-load-must-be-a-string-scalar-or-character-vector#comment_518441, https://www.mathworks.com/matlabcentral/answers/373874-error-using-load-must-be-a-string-scalar-or-character-vector#comment_518517, https://www.mathworks.com/matlabcentral/answers/373874-error-using-load-must-be-a-string-scalar-or-character-vector#comment_518620, https://www.mathworks.com/matlabcentral/answers/373874-error-using-load-must-be-a-string-scalar-or-character-vector#comment_518652, https://www.mathworks.com/matlabcentral/answers/373874-error-using-load-must-be-a-string-scalar-or-character-vector#comment_518668, https://www.mathworks.com/matlabcentral/answers/373874-error-using-load-must-be-a-string-scalar-or-character-vector#comment_519867. Matlab save a ~ matlab .mat save save Argument must contain a string. Satisfying ode45 Reload the page to see its updated state. which contains 9 elements. Other MathWorks country sites are not optimized for visits from your location. Choose a web site to get translated content where available and see local events and offers. function. The comma means, that both parts are evaluated, but independent from each other. Warning: Input arguments must be scalar. - MATLAB Answers - MATLAB Central https://www.mathworks.com/matlabcentral/answers/454979-error-using-save-must-be-a-string-scalar-or-character-vector-but-it-is-a-string, https://www.mathworks.com/matlabcentral/answers/454979-error-using-save-must-be-a-string-scalar-or-character-vector-but-it-is-a-string#answer_369467, https://www.mathworks.com/matlabcentral/answers/454979-error-using-save-must-be-a-string-scalar-or-character-vector-but-it-is-a-string#comment_691053, https://www.mathworks.com/matlabcentral/answers/454979-error-using-save-must-be-a-string-scalar-or-character-vector-but-it-is-a-string#comment_1673602, https://www.mathworks.com/matlabcentral/answers/454979-error-using-save-must-be-a-string-scalar-or-character-vector-but-it-is-a-string#comment_1673607, https://www.mathworks.com/matlabcentral/answers/454979-error-using-save-must-be-a-string-scalar-or-character-vector-but-it-is-a-string#answer_369468, https://www.mathworks.com/matlabcentral/answers/454979-error-using-save-must-be-a-string-scalar-or-character-vector-but-it-is-a-string#comment_1304197, https://www.mathworks.com/matlabcentral/answers/454979-error-using-save-must-be-a-string-scalar-or-character-vector-but-it-is-a-string#comment_1304217. How to save a matrix as text file using. In MATLAB, a scalar string object holds exactly one string, which is a complete vector of characters. Q1_2 = [-ones_column, Q1_1, ones_column]; I assume that you are trying to save your, In that case, you just need to add single-quotes around, to make it a character vector. Choose a web site to get translated content where available and see local events and offers. Solution: You can set a breakpoint in this line of dynare.m: evalin ('base', [fname '.driver']); then run your code. Error in fatiguelife (line 14) s1=load(i); @Prateek Srivastava: Seriously? : unnecessary "." Los navegadores web no admiten comandos de MATLAB. Rather make a character vector that contains the name of the variable to store: Thanks for contributing an answer to Stack Overflow! or 2) Remove the '-struct' argument from the save command. str = "Hello, world". anonymous function or a local function. Rather make a character vector that contains the name of the variable to store: save (Customname, 'TheData'); Share Follow answered Feb 23, 2019 at 18:04 Can somebody give me some insight on how to fix this? Find centralized, trusted content and collaborate around the technologies you use most. Error using eval Must be a text scalar Error when Matlab is running We would usually call that a column vector (a vector in the form of a column) rather than a row vector (which would be a vector in the form of a row). MathWorks is the leading developer of mathematical computing software for engineers and scientists. Make new folder - MATLAB mkdir - MathWorks India I have different directory and seed to save for each them separately in a for loop. I am trying to extract the first four values from my signal and than calculate the values of S1,S2,S3,S4 and than apply the rainflow conditions that is abs(s2-s1)>=abs(s2-s3),abs(s3-s4)>=abs(s2-s3); if this is true than we could extract that point otherwise we move on. Accelerating the pace of engineering and science. Accelerating the pace of engineering and science. This is bizarre. Code generation does not support an input argument that represents an Copy. The variable U is an 8894 matrix, U_old is the same size, and dt is a single float. What if it is a variable containg a text? Find the treasures in MATLAB Central and discover how the community can help you! You can also select a web site from the following list. https://www.mathworks.com/matlabcentral/answers/419065-save-problem-struct-must-be-the-name-of-a-scalar-structure-variable, https://www.mathworks.com/matlabcentral/answers/419065-save-problem-struct-must-be-the-name-of-a-scalar-structure-variable#comment_1651789, https://www.mathworks.com/matlabcentral/answers/419065-save-problem-struct-must-be-the-name-of-a-scalar-structure-variable#answer_336875, https://www.mathworks.com/matlabcentral/answers/419065-save-problem-struct-must-be-the-name-of-a-scalar-structure-variable#comment_610526, https://www.mathworks.com/matlabcentral/answers/419065-save-problem-struct-must-be-the-name-of-a-scalar-structure-variable#answer_752069. Strings are useful for some purposes, no doubt.. Scalar in computer programs usually means "exactly one item". thanks a lot for your answer I now understand my mistake but after this when I am trying to write the rain flow script in order to reduce a spectrum of varying stress there is this error which is showing"Error using load Must be a string scalar or character vector.I am also attaching the script thanks in advance for your help. What gives? Is there any other way to do this? Select the China site (in Chinese or English) for best site performance. If it has unbound variables then vpa () the expression. Accelerating the pace of engineering and science. save problem: -STRUCT must be the name of a scalar structure variable Description example mustBeTextScalar (value) throws an error if value is not a text scalar. Though the text "Hello, world" is 12 characters long, str itself is a 1-by-1 string, or string scalar. If the operation is not successful, mkdir throws an error to the Command Window. Now check the variables, which are used in this line: You will see, that "load" is the function to load MAT files. Or you could initialize and update the value of i accordingly in the, You may receive emails, depending on your. inside a, . If your function handle contains these variables or functions, MATLAB throws . Stephen on 14 Sep 2018 0 It is unclear from your post what the data type of variable "S" is. When I type this at the command line: I get the expected 'data/test1.mat' result. Convert a character vector that represents an anonymous It seems m1 is a vector or someting else. abs(s2-s1)>=abs(s2-s3),abs(s3-s4)>=abs(s2-s3). For the record, when I stop at the breakpoint, typing this at the command line works: But I need to be able to change the filename within the loop, hence why I'm doing it the first way. For example: s = "mystring"; Create a type from s. t = coder.typeof (s); Pass the type to fiaccel by using the -args option. But I need to be able to change the filename within the loop, hence why I'm doing it the first way. You can store any 1-by- n sequence of characters as a string, using the string data type. How do I save the name of a MATLAB file from a list? so character arrays behave like you might expect, but strings are an entirely different animal. example Other MathWorks country sites are not optimized for visits from your location. Thanks a lot for your guidance. Scalar in computer programs usually means "exactly one item". General collection with the current state of complexity bounds of well-known unsolved problems? It is unclear from your post what the data type of variable "S" is. Beamforming - Error using load Must be a text scalar Does Pre-Print compromise anonymity for a later peer-review? Reload the page to see its updated state. If you include workspace variables in your character vector, Must be a string scalar or character vector. Other MathWorks country sites are not optimized for visits from your location. I feel stupid now, this isn't my first time using the save command. Other MathWorks country sites are not optimized for visits from your location. Description example save (filename) saves all variables from the current workspace in a binary MATLAB file (MAT-file) named filename. example I want to save file in other filepath? Find the treasures in MATLAB Central and discover how the community can help you!
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