defmean(numbers):""" 计算一组数值的均值 :param numbers: 包含数值的列表 :return: 均值 """# 计算数值的总和total=sum(numbers)# sum()函数计算列表的元素和# 计算数值的个数count=len(numbers)# len()函数返回列表的元素个数# 计算均值returntotal/countifcount>0else0# 防止除以零的情况 1. 2. 3....
# take mean of entire arrayresult1 = np.nanmean(array1)# mean of only even elementsresult2 = np.nanmean(array1, where = (array1 %2==0))# mean of numbers greater than 3result3 = np.nanmean(array1, where = (array1 >3)) print('Mean of entire array:', result1)print('Mean o...
```python import statistics ``` ### 2. 使用 `mean` 函数 `mean` 函数接受一个可迭代对象(如列表、元组等),并返回其元素的平均值。 ### 示例代码: ```python # 定义一个数字列表 numbers = [1, 2, 3, 4, 5] # 计算并打印平均值 average = statistics.mean(numbers) print("The mean is:"...
# mean of entire arrayresult1 = np.mean(arr) # mean of only even elementsresult2 = np.mean(arr, where = (arr%2==0))# mean of numbers greater than 3result3 = np.mean(arr, where = (arr >3)) print('Mean of entire array:', result1)print('Mean of only even elements:', resu...
What can we learn from looking at a group of numbers? In Machine Learning (and in mathematics) there are often three values that interests us: Mean- The average value Median- The mid point value Mode- The most common value Example: We have registered the speed of 13 cars: ...
python 的numpy库中的mean()函数用法介绍 1. mean() 函数定义: numpy.mean(a, axis=None, dtype=None, out=None, keepdims=<class numpy._globals._NoValue at 0x40b6a26c>)[source] Compute the arithmetic mean along the specified axis. Returns the average of the array elements. The average is ...
mean = statistics.mean(list_of_numbers) median = statistics.median(list_of_numbers) mode = statistics.mode(list_of_numbers) print('---Stats---') print('SUM: {}'.format(sum) print('MEAN: {}'.format(mean) print('MEDIAN: {}'.format(median) print(...
Python 示例 代码语言:txt 复制 def calculate_mean(numbers): if not numbers: # 检查切片是否为空 return None # 或者返回一个特定的值,如 0 或 'N/A' return sum(numbers) / len(numbers) # 示例调用 print(calculate_mean([])) # 输出: None print(calculate_mean([1, 2, 3])) # 输出: 2.0...
Returns the average of the array elements. The average is taken over the flattened array by default, otherwise over the specified axis. float64intermediate and return values are used for integer inputs.Parameters:a : array_like Array containing numbers whose mean is desired. If a is not an ...
1defis_continuous(numbers):2"""判断抽取的5张牌是否是顺子。34Args:5numbers: 抽取的5张牌。67Returns:8布尔变量,表示是否是顺子。9"""10iflen(numbers) < 1:11returnFalse12numbers.sort()1314num_of_zero = numbers.count(0)#统计数组中0的个数15num_of_gap =01617#统计数组中的间隔数目18small =...