Hello
if i have MATLAB file that measures the bit error rate for certain communication system i use rand function to generates bits and noise
i need to execute the program like 1000 time for each noise value then record the results each time and find the average and plot it as final results
my question is how to run the m file 1000 times and record the results of each time in a vector without running it manually
You already have a MATLAB function, which measures whether a randomly generated bit transmitted with noise is correctly received. Suppose this function name is 'yourFunction.m'. Now you simply need to make another function (i.e., another m file) to call 'yourFunction'. In this new function, you can call 'yourFunction' as many times as you like using a "for loop", just like you can call any functions provided by MATLAB.
By the way, it is worthy to keep in your mind that MATLAB is a powerful tool to process data in matrixes. For instance, in 'yourFunction', if you like, you can generate 1000 (or more) random bits in one calling of 'rand' function, and 1000 random numbers for independent noise values. So, you may do all things in a single call of 'yourFunction' and do not need to call 'yourFunction' 1000 times.
To execute the MATLAB file multiple times and automatically record the results each time in a vector, you can utilize a loop structure. The code structure is as follows: “for i = 1 : N” … “end”, where N represents the number of times you want to run the MATLAB file. Within the loop, the MATLAB file is executed using your file, and the bit error result is stored in a vector. Finally, you can calculate the average bit error rate by using the “mean” function. Hope it helps, Mariam!
