WebOct 17, 2013 · (In addition to the answers below) Your fseek idea ought to work, but since you use SEEK_END the 'pointer' is already at the very end-- and then you go "back" 100 characters. Use 0 for the offset and it ought to work. (Minor: you check if your reading file can open, but not your writing file. Check both.) – Jongware WebJun 23, 2024 · Theme. Copy. fileID = fopen (sprintf ('textfile.txt','w'); %here I create the text file. fprintf (fileID, '%f %f %f \n', direction_lights); %here I print the 3 numbers and then …
ERROR // Array indices must be positive integers or local values
WebApr 13, 2024 · Even stranger: when I use my editor powers to edit your "one last try" post, the preview shows up color coded! The code will not, if I recall, show up color coded in the case that the Answers editor thinks you are using Mobile. But in that case, you get a quite different editor, with a tab named Draft and a tab named Preview, rather than having ... http://www.ece.northwestern.edu/local-apps/matlabhelp/techdoc/ref/fprintf.html church live streaming software free
fopen file, read number with fscanf, then write back to same file …
WebOct 1, 2012 · >> a=['matlab','is','fun'] a = matlabisfun >> size(a) ans = 1 11 In a character array, each character in a string counts as one element, which explains why the size of a is 1X11. To store strings of varying lengths as elements of an array, you need to use curly braces to save as a cell array. WebAug 29, 2024 · There likely isn't an existing function in MATLAB for this. This sounds very custom to me. That's ok, though. MATLAB gives you the ability to create your own algorithms. If you can explain the logic, you can create code the follows that logic to give you the results you want. WebMay 7, 2024 · Display the value with at least 15 digits of accuracy after the decimal point. (This will require the use of the fprintf() function.) Add a counting variable that counts the number of times the loop executes and display this value after the loop terminates. church movie licensing