Need help creating these function in MATLAB

Subject:Electrical EngineeringPrice: Bought3

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Need help creating these function in MATLAB. 
x.data = [4 1 5 -6 8];
x.offset = -1;

function y = even{a} % EvEN Take a Hatlab sequence structure x. which is possibly complex and create % a Hatlab sequence structure, y, that corresponds to the even part function Y = oddtz} % ODD Take a Hatlab sequence structure x. which is possibly complex and create % a Hatlah sequence structure y, that corresponds to the odd part