CAN YOU HELP ME ,I CURRENTLY HAVE A 60 PERCENT ON MATLAB GRADER. THE SUBMISSION MUST CONTAIN A VARIABLE idx AS WELL AS THE KEYWORD or function sum.Can you help me fix those .Thanks .Above is the script that I did .Try to work on it and change what is missing .Thanks .

Previous Assessment: 3 of 5 Tests Passed (60%) Is N correct? Is y correct? x Is for loop used to calculate the result? The submission must not contain the following functions or keywords: sum x Is Id x correct? The submission must contain a variable named idx. Plotted and annotated the data? The SNR of the filtered signal is 19.35dB array of noisy data x and produce a 1 by N array of smoothed data y using a central moving average, yk=2xk1+xk+1, except for k=1 and k= N, where y1=x1 and yN=xN. on plot and subplot. The program should also include inline error handling for the case where the array x is empty. If the array x is empty, the result y should be an empty array