function [ val ] = get_max_val( X, Y, x1, x2 )
%GET_MAX_VAL Summary of this function goes here
%   Detailed explanation goes here

len = size(X);
val = -100000000;
for k = 1:1:len-1
    
    if (x_var >= X(k)) && (x_var < X(k+1)) 
        value = Y(k);
    end
end

end