Question-1:Consider a set of N numbers, myArray, (represented as a row vector) which is not ordered. Write a function myStats which takes myArray and an integer k such that 1=k=N and returns the kth largest and kth smallest element in myArray. Your function should ensure the function is called with valid number of arguments and the validity of the arguments itself. Also note that, you cannot use any built-in functions to order the elements within myArray. You should write your own code to order the data, if necessary.Write a script helpMyStats.m which reads all the elements of myArray and the value k from the user and displays the result by calling myStats function with the appropriate input data.Question-2:Modify the function myStats (from question-1) and write myStats_2 so that the input argument k is optional. In case this argument is omitted, then the function myStats_2 returns the smallest and the largest element in the myArray.Write a script helpMyStats_.m which reads all the elements of myArray and the value k from the user and displays the result by calling myStats_2 function with the appropriate input data. Also test various ways to call myStats_2.Question-3:Modify the function myStats_2 and write the function myStrings so that the function perform the same task with the myArray containing list of names(strings) instead of numbers.Write a script helpMyStrings.m which reads all the names in myArray and the value k from the user and displays the result by calling myStrings function with the appropriate input data. Also test various ways to call myStrings.