Question

Need help with this MATLAB question

4.4 (25 points) Write and test the code for the function mysteryFunction that takes a vector, V, generate a new vector W, in which each element is the sum of the corresponding element in V and the previous element of V, and return two values (mysteryMean, mysteryStdev] of W. Consider the previous element of V(1) to be 0. For example, [mysteryMean, mysteryStdev] = mysteryFunction(1:8), W= [1 3 5 7 9 11 13 15] mysteryFunction should return mystery Mean= mysteryStdev = 4.5826 Test you program: (mystery Mean mysteryStdev]= mysteryFunction(([1:6).^2)

Answer 1

Code:

function [mysteryMean, mysteryStdev]= mysteryFunction(V)
W=[];
n=length(V);
for i = 1:n
   if i== 1
       W(1)=V(1);
   else
       W(i)=V(i)+V(i-1);
   end
end
W
mysteryMean=mean(W)
mysteryStdev=std(W)
end

OUTPUT:

mysteryFunction (1:8) W = 3 1 5 9 11 13 15 mysteryMean 8 mysteryStdev = 4.8990 ans

mysteryFunction ([1:6] . ^2) 1 13 25 41 61 mysteryMean 24.3333 mysteryStdev 23.1056 ans 24.3333

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