Commit 9b86958

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add mode

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	`1`	`+"""`
	`2`	`+https://en.wikipedia.org/wiki/Mode_(statistics)`
	`3`	`+"""`
	`4`	`+`
	`5`	`+`
	`6`	`+def mode(numbers):`
	`7`	`+ """`
	`8`	`+ Calculate mode of a list numbers.`
	`9`	`+ :param numbers: the numbers`
	`10`	`+ :return: mode number of the numbers.`
	`11`	`+`
	`12`	`+ >>> import statistics`
	`13`	`+ >>> mode([1, 2, 2, 3, 4, 7, 9]) == statistics.mode([1, 2, 2, 3, 4, 7, 9])`
	`14`	`+ True`
	`15`	`+ >>> import random`
	`16`	`+ >>> numbers = random.sample(range(-50, 50), 100)`
	`17`	`+ >>> mode(numbers) == statistics.mode(numbers)`
	`18`	`+ True`
	`19`	`+ """`
	`20`	`+ max_count = 1`
	`21`	`+ mode_number = numbers[0]`
	`22`	`+`
	`23`	`+ for number in numbers:`
	`24`	`+ count = 0`
	`25`	`+ for temp in numbers:`
	`26`	`+ if temp == number:`
	`27`	`+ count += 1`
	`28`	`+ if count > max_count:`
	`29`	`+ max_count = count`
	`30`	`+ mode_number = number`
	`31`	`+`
	`32`	`+ return mode_number`
	`33`	`+`
	`34`	`+`
	`35`	`+if __name__ == "__main__":`
	`36`	`+ from doctest import testmod`
	`37`	`+`
	`38`	`+ testmod()`

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