mirror of
https://github.com/TheAlgorithms/Python.git
synced 2024-11-24 13:31:07 +00:00
1c9d995b9e
* Create average_median.py I created a program to calculate the median of a list of numbers. * Changed Odd to Even in String * Create decimal_to_binary.py - Added 'conversions' folder. - Created a decimal to binary converter. * Implemented Decimal to Octal Algorithm - I created a decimal to octal converter based on the converter in the TheAlgorithms/Python project. - I added two newlines to make the output of decimal_to_binary.py better.
42 lines
1.1 KiB
Python
42 lines
1.1 KiB
Python
"""
|
|
Find median of a list of numbers.
|
|
|
|
Read more about medians:
|
|
https://en.wikipedia.org/wiki/Median
|
|
"""
|
|
|
|
|
|
def median(nums):
|
|
"""Find median of a list of numbers."""
|
|
# Sort list
|
|
sorted_list = sorted(nums)
|
|
print("List of numbers:")
|
|
print(sorted_list)
|
|
|
|
# Is number of items in list even?
|
|
if len(sorted_list) % 2 == 0:
|
|
# Find index for first middle value.
|
|
mid_index_1 = len(sorted_list) / 2
|
|
# Find index for second middle value.
|
|
mid_index_2 = -(len(sorted_list) / 2) - 1
|
|
# Divide middle values by 2 to get average (mean).
|
|
med = (sorted_list[mid_index_1] + sorted_list[mid_index_2]) / float(2)
|
|
return med # Return makes `else:` unnecessary.
|
|
# Number of items is odd.
|
|
mid_index = (len(sorted_list) - 1) / 2
|
|
# Middle index is median.
|
|
med = sorted_list[mid_index]
|
|
return med
|
|
|
|
|
|
def main():
|
|
"""Call average module to find median of a specific list of numbers."""
|
|
print("Odd number of numbers:")
|
|
print(median([2, 4, 6, 8, 20, 50, 70]))
|
|
print("Even number of numbers:")
|
|
print(median([2, 4, 6, 8, 20, 50]))
|
|
|
|
|
|
if __name__ == '__main__':
|
|
main()
|