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Write a function named CheckRegular IncMat that takes an incidence matrix representation of a graph (M) and checks if the graph is regular or not. If the graph is regular, the function should return its degree (d), otherwise the function should return - 1. Note that loops are counted twice in vertex degree calculations. Examples: Input: Output: d=2 Case 1 M1=[1 1 ; 1 0 1 ; 1 1; 0 0 1 1] d=-1 Case 2 M2 = [1 0 1 0 0%; 1 1 0 0 1 ; 0 1 1 0 0 1; 0 0 0 1 0 1: 0 0 0 1 1 0] d=3 Case 3 M3=[1 1 1 0 0 0; 1 0 0 1 1 0; 0 1 0 1 0 1; 0 0 1 0 1 1] In your code, you MUST use adequate loop(s) and conditional(s), Note that M is defined as input to the function. Do not overwrite values in these variables in your code. Be sure to assign a value to the function output variable (d). > Is output assigned to "d" correct for incidence matrix M1? (Pretest) Is output assigned to "d" correct for incidence matrix M2? Is output assigned to "d" correct for incidence matrix M3? Does the function employs loop(s)? Does the function employs conditional(s)? Function C Reset MATLAB Documentation 1 function deCheckRegular IncMat (M) 2%Enter the commands for your function here. Code to call your function C Reset 1 M1=[1 1 ; 2 1 0 1 ; 3 0 1 0 1; 0 1 1]; 5 6 d-CheckRegular IncMat(M1) Run Function