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Lower Level File I/O Functions:
Whenever reading from data file, as long as the data in the file is "regular" the load function works-in another words, the similar type of data on every line and in the similar format on every line-therefore it can be read into a matrix.
Though, data files are not always set up in this manner. Whenever it is not possible to use the load, MATLAB has what are known as lower level file input functions which can be used. The file should be opened first, that involves finding or creating the file and positioning an indicator at the starting of the file. Whenever reading has been done, the file should be closed.
Likewise, the save function can write matrices to the file, but when the output is not a simple matrix there are lower level functions to write to files. The file once again should be opened first and closed when the writing has been done.
Illustration of nested for loops and the if statements: For illustration,when the file contains: 33 -11 2 4 5 9 22 5 -7 2 11 3 the outco
Nested Structures: The nested structure is a structure in which at least one of the members is itself a structure. For illustration, a structure for the line segment may co
Program of Persistent variables: The program below elaborates this. The script calls a function func1 that initializes a variable count to 0, then increment it, and print the
Use of function polyval: The better the curve fit, the more exact these interpolated and extrapolated values will be. By using the subplot function, we can loop to display the
Input in a While Loop: The script below repeats the procedure of prompting a user, the reading in a positive number, and echo-printing it, as long as the user properly enters
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Example of Function stubs: The three functions have not so far been written, though, therefore the function stubs are put in place so that the script can be executed and teste
Advanced File Input and output: Where 'format' involves the conversion characters much like those used in the fprintf function. For illustration, to read the file 'subjexp.dat
Example of sorting strings: To sort a cell array of strings, also the sort function is used. The illustration is as follows, >> engcellnames = {'Chemical','Mechanical',.
Illustration of reading from files: For illustration, suppose that there is a data file 'subjexp.dat' that has on each line a number followed by thecharacter code. The type fu
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