How do you find the median of a list in Java?

How do you find the median of a list in Java?

Method 1 : Finding the middle element

  1. public class MedianFinder {
  2. public static void main(String[] args) {
  3. int[] values = { 2, 3, 6, 12, 15, 34, 65, 78, 99 };
  4. double median = median(values);
  5. println(“Median is : ” + median);
  6. values = { 2, 3, 6, 12, 15, 34, 65, 78};
  7. median = median(values);

How do you find the middle of an Arraylist?

size() / arraylist. length() method; you can use two iterators. One of them iterates from beginning to the end of the array, the other iterates from end to the beginning. When they reach the same index on the arraylist, then you find the middle element.

What is median in an array?

If an array is sorted, median is the middle element of an array in case of odd number of elements in an array and when number of elements in an array is even than it will be an average of two middle elements.

How do you find the middle number in an array Java?

int mid = firstIndex + (lastIndex-firstIndex)/2 , will give you the mid of the array.

What is median in Java?

Median is the middle value of a set of data.

How do you find the middle element of a list?

“middle value of a list in python” Code Answer’s

  1. def findMiddle(input_list):
  2. middle = float(len(input_list))/2.
  3. if middle % 2 != 0:
  4. return input_list[int(middle – .5)]
  5. else:
  6. return (input_list[int(middle)], input_list[int(middle-1)])
  7. ​

How do you find the middle index of an array in Java?

How do you find the median of two arrays?

There are two cases:

  1. Case 1: m+n is odd, the median is at (m+n)/2 th index in the array obtained after merging both the arrays.
  2. Case 2: m+n is even, the median will be average of elements at index ((m+n)/2 – 1) and (m+n)/2 in the array obtained after merging both the arrays.

How do you find the median of an even array?

If there is an even amount of numbers in the list, the median is the average of the two middle values.

Can median be used for ordinal data?

The median is used with ordinal-level data or when an interval/ratio-level variable is skewed (think of the Bill Gates example). The mean can only be used with interval/ratio level data.