AI代码解释 inputs=list()whileTrue:current=input("Write something: ")ifcurrent=="quit":breakinputs.append(current) 这段代码与上面的代码是等效的,不过,如果使用赋值表达式,还可以再进一步简化这段循环: 代码语言:javascript 代码运行次数:0 运行 AI代码解释 inputs=list()while(current:=input("Write somet...
# set the mu and sigma parameters of the distribution heights_mean = 170 heights_sd = 10 # instantiate the random variable object heights_rv = stats.norm( loc = heights_mean, # mean of the distribution scale = heights_sd # standard deviation ) 前面的代码创建了正态分布的随机变量,其概率密...
(name='max_cycle'), left_on='unit_nb', right_index=True) # Calculate remaining useful life for each row remaining_useful_life = result_frame["max_cycle"] - result_frame["time_cycle"] result_frame["RUL"] = remaining_useful_life # drop max_cycle as it's no longer needed result_...
value_counts 函数是默认降序排列，可以使用 sort_values 函数升序排列后，使用 plot.barh 函数做一个条...
(wma_values, wma_keys) # 计算异常值 def calculate_variance(data, moving_average): variance = 0 flag_list = moving_average.isnull() count = 0 for index in range(len(data)): if flag_list[index]: count += 1 continue variance += (data[index] - moving_average[index]) ** 2 ...
nn20 = [x for x in RR_diff if (x>20)] #First create a list of all values over 20, 50 nn50 = [x for x in RR_diff if (x>50)] pnn20 = float(len(NN20)) / float(len(RR_diff)) #Calculate the proportion of NN20, NN50 intervals to all intervals ...
Write a Python program to calculate the arc length of an angle. Note: In a planar geometry, an angle is the figure formed by two rays, called the sides of the angle, sharing a common endpoint, called the vertex of the angle. Angles formed by two rays lie in a plane, but this plane...
center如果为False,表示第一个数据不做处理,第二个数据为原数列第一和第二个数据平均,第三个数据为原数列前三个数据平均,以此类推。 以下为系统帮助内容 Help on Rolling in module pandas.core.window.rolling object: class Rolling(RollingAndExpandingMixin) | Rolling(obj: 'NDFrame', window=None, min_peri...
_ list(float列表):从数据文件中提取的浮点列表 """ def __init__(self, mu = 0, sigma = 1): self.mean = mu self.stdev = sigma self.data = [] def calculate_mean(self): """函数计算数据集的平均值. Args: None Returns: float: mean of the data set """ avg = 1.0 * sum(self....
Tip: To calculate the standard deviation of an entire population, look at the statistics.pstdev() method. Syntaxstatistics.stdev(data, xbar) Parameter ValuesParameterDescription data Required. The data values to be used (can be any sequence, list or iterator) xbar Optional. The mean of the ...