Learn more looping file names with txt and date in matlab. Matlab the for loop a for loop is a repetition control structure that allows you to efficiently write a loop that needs to execute a specific number of times. Probably a really simple question but i cant seem to figure it out for matlab. How to save to a specific filename in a for loop matlab.
How to generate a file name by combining variable characters. I have a number of variables for example timeoffset0 timeoffset20 and receivedpoweroffset0 receivedpoweroffset20. Means for every one input sheet i will get one xlsx file with 19 sheets. I want to change the variable name in each iteration, so i use eval function for naming like this. Adding plot titles based on excel file name in a for loop. It is easy and advisable to check if fopen succeeded. For example, preallocate a 10element vector, and calculate five values. Follow 98 views last 30 days amit pandey on 31 jul 2018. How to name a figure file with filename in for loop. My task is to create filenames that correspond to some weather stations i have in my hands.
Save mat file from matlab how to tell matlab to open and save specific files in the same directory i have a set of csv files and need to extract data to obtain plots. Can somebody please tell if there exists a way to rename a variable in each iteration of a loop in matlab. File name, returned as a string scalar or character vector. To reconstruct a file name from the output of fileparts, use strcat to concatenate the file name and the extension that begins with a period. Jun 02, 2014 i would like to make it so every time this runs, for j1. How to add a variable index to a file name in a loop. Plot using variable name from for loop matlab answers. Change file name in loop matlab answers matlab central. How rename files with loop matlab answers matlab central. I am trying to write a program to read in files and analyze each file one by one. The software im using ouputs my acquired data in multiples traces when i import it in matlab in. Nov 02, 2017 i want to name my figures with 2 pieces of information, one that is constant for all images and one that arises from a loop. I have a problem with naming a variable during a for loop. Mar 31, 2016 this function saves matlab figure windows or simulink models to a powerpoint file in metafile format using the activex interface.
Alexander hummel on 17 nov 2017 hi, ive a matlabfile for a specific calculation which is placed in a folder a. Why not just use readtable to import the file directly into a table. You can construct the loop to either loop through and generate all the names first and store in cellstr or string array or, just build the filename inside the overall calculation loop at the point youre ready to use it. Mar 27, 2015 matlab is also not intended for this kind of variable naming. You can programmatically exit a loop using a break statement, or skip to the next iteration of a loop using a continue statement. In your case a much more robust solution would be to use cell arrays or structures, where you can include fields for each kind of data e. Table name from input to loop matlab answers matlab central. How to include a variable in fopen file name in a for loop. However when you use more appropriate storage for your data and metadata then you will suddenly find lots of matlab functions that do many useful. How to name a figure file with filename in for loop matlab. Mathworks is the leading developer of mathematical computing software for. College of engineering administration network services high performance compute cluster hpcc software matlab.
Change variable name in a loop matlab answers matlab central. Now what actually i want is that i need to write my answers in for different xlsx sheets. Another way, using a struct to save the loop index into the name of the field. Increment file name by adding numbers in a loop matlab. Follow 116 views last 30 days alexander hummel on 17 nov 2017. Suppose i took x variable and i want to append at the end of file while saving i. I want to name my figures with 2 pieces of information, one that is constant for all images and one that arises from a loop. Please clear assignin variable if you have created it in matlab s base workspace by mistake. Sounds too easy for anyone who knows what they are doing. That mean i will save the fuction tri in my case,in a file then open a new file to call the tri function inside the for loop. Im trying to learn matlab a little better, and im not sure how to go about something that is probably pretty simple. I am able to read the files into matlab and create the graphs i want, but i would like the titles of the graphs to be the same as the excel file they came from. Apr 17, 2019 this code edits a certain number in an input text and generates a new output file containing the new edited number. How to change file extension via matlab learn more about file, format, matlab, command.
This code edits a certain number in an input text and generates a new output file containing the new edited number. The figure or model is first copied to the windows clipboard, powerpoint is started, a new blank slide is added, the figuremodel is pasted, the file is saved, and powerpoint is closed. Naming figure with a loop matlab answers matlab central. Learn more about save command, saving variable in a loop.
Learn more about for loop, image processing, imwrite matlab. Mathworks is the leading developer of mathematical computing software for engineers and scientists. Does this mean matlab is not going through the for loop. Im assuming you have the 5 variables you want to save already. I would like to import data from a list of files, and save the resulting matrices with a name derived from the original file name. You can construct the loop to either loop through and generate all the names first and store in cellstr or string array or, just build the filename inside the overall calculation loop at.
How do i dynamically generate a file name for save in matlab. Feb 21, 2020 how do i change file name variable within a loop. Trial software how to name a figure file with filename in for loop. This show result into file1, file9 somthing like this. I want to generate many output files but the problem is that each time a new output file is generate it replaces the. There are many functions that support working on structures and cell arrays, and can access these data easily, and they can also be used in vectorized code which. For example, i want the code to generate 4 plots with the following titles. On the other hand, youre reading files whose name youre already changing.
Table name from input to loop matlab answers matlab. Loop variable names and file names matlab answers matlab. To open the matlab coder app, on the matlab toolstrip apps tab, under code generation, click the app icon. I didnt create the variables because you have done that. Trial software how to auto change save file name with for loop. I use the following code to generate a variable file name in a loop and accordingly get the desired data. How to auto change save file name with for loop matlab. I want to generate many output files but the problem is that each time a new output file is generate it replaces the previous one since they will have the same name. Since you are so awesomely helpful, could you also tell me how to later call that function with the index i am on. Nov 17, 2017 i was thinking of a loop which selects the folder and excell file in need by specifying variables which output the name of my files. The files are wav files, and i want to read them in, filter them with a filter i have. With loop control statements, you can repeatedly execute a block of code. I currently have 24 folders within a folder and i was wondering if it was possible to loop through the 24 folders and extract information from a subfolder within the 24 folders.
In the output file name field, use the default value. Processing files using a for loop matlab answers matlab central. Stack overflow for teams is a private, secure spot for you and your coworkers to find and share information. So, how can i change the filename with a different for loop so that for every different input sheet i will get different xlsx file with 19 sheets each. As far as i know the forloop is even more excellent than what says in this text. For each element that is changed in any of the input variables you need to build a name. I have a set of csv files and need to extract data to obtain plots. Vary variable name in a for loop matlab answers matlab.
I would like to plot all of these variables within a loop or similar method so that i can write a script which will plot all of the variables for any number of variables that are given as an input. Saving a file in matlab with a variable filename in a loop. Notice that the inner loop is parfor parallel for loop, for every sequential j1 to 12 iteration, there will be 16 parallel iteration i1 to 16 print djpeg aplotted is a. Trial software how do i change file name variable within a loop. How to create filename with variable within loop matlab answers. Softwareintheloop execution with the matlab coder app. Process type, flow data, temperature data, notes, units, etc. The problem is that i have to repeat fopen for each i. Change the name of the output file as a loop computes. Give a showq in securecrt terminal and youll see your job is running in 16 processors. Theres quite a few files, so i would like to use a.
How to change the filename in xlswrite using loop matlab. Jul 14, 2011 change the name of the output file as a loop. Jul 12, 2017 hi, i have a bunch of excel files that i have looped through matlab. Using numel rather than length is a good habit to learn. The way i construct filename, it is indicated as char, so the line where i. Then, use fullfile to build the file name with the platformdependent file separators where necessary. Jun 29, 2018 clearing variables on each loop iteration serves no purpose. Nov 14, 2012 in fact, i have much bigger than this loop. Jul 24, 2018 i have a number of variables for example timeoffset0 timeoffset20 and receivedpoweroffset0 receivedpoweroffset20. Clearing variables on each loop iteration serves no purpose. Change variable name in a loop matlab answers matlab.
How do i change file name variable within a loop matlab. Hello matlab community, i am a beginner in matlab and i use it normally for data treatment. You clicked a link that corresponds to this matlab command. If you insist using matlab, it can easily done with movefile put it in a loop and thats it. This function saves matlab figure windows or simulink models to a powerpoint file in metafile format using the activex interface. Apr 02, 2020 how to change file extension via matlab learn more about file, format, matlab, command. Actually, i want to save a variable in a loop with a different name incorporating the index of the loop. Learn more about array, struct, name, loop, iterate. Follow 12 views last 30 days krish desai on 25 mar 2016. Save mat file from matlab how to tell matlab to open and save specific files in the same directory. Theres quite a few files, so i would like to use a for loop. Matlab iterating through files in a folder, and check if the file name has specific characters 0 matlab.
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