defcalculate_statistics(numbers):min_value=min(numbers)max_value=max(numbers)avg_value=sum(numbers)/len(numbers)return{'最小值':min_value,'最大值':max_value,'平均值':avg_value}data=[1,2,3,4,5]result=calculate_statistics(data)print(f"最小值:{result['最小值']}")print(f"最大值:{r...
In [1]: from numba import jit, njit, vectorize, float64 In [2]: def custom_mean(x): return (x * x).mean() In [3]: @jit(cache=True) def custom_mean_jitted(x): return (x * x).mean() In [4]: %timeit rolling_df.apply(custom_mean, raw=True) CPU times: user 4.33 s, ...
mapValues 算子 针对KV 型 RDD,但只对 value 做处理,key 保持不变。 >>>rdd = sc.parallelize([("a",1), ("b",1), ("a",2), (
String form:[1,2,3]Length:3Docstring:Built-inmutable sequence.If no argument is given,the constructor creates anewemptylist.The argument must be an iterableifspecified.In[3]:print?Docstring:print(value,...,sep=' ',end='\n',file=sys.stdout,flush=False)Prints the values to a stream,or ...
pd.set_option('display.max_columns', None)读入数据集 df = pd.read_csv('./Telco-Customer-Churn.csv')df.head()04、数据初步清洗 首先进行初步的数据清洗工作，包含错误值和异常值处理，并划分类别型和数值型字段类型，其中清洗部分包含：OnlineSecurity、OnlineBackup、DeviceProtection、TechSupport、StreamingTV...
返回类型:return 语句可以返回任何Python对象,包括数字、字符串、列表、字典、布尔值等返回多个值:尽管 return 通常用于返回单个值,但它也可以用于返回多个值。多个值可以作为元组、列表或其他数据结构的形式一起返回。 def return_multiple_values(): a = 10 b = 20 return a, b 返回None:如果函数没有明确的...
Functions as Return ValuesPython also allows you to return functions from functions. In the following example, you rewrite parent() to return one of the inner functions:Python inner_functions.py def parent(num): def first_child(): return "Hi, I'm Elias" def second_child(): return "...
{model} ssp585, {dataplot.year.values} vs. 1980-2010',fontsize=14)plt.ylabel('Latitude',fontsize=12)plt.xlabel('Longitude',fontsize=12)# Add colorbar:cax=fig.add_axes([0.91,0.12,0.02,0.8])cb=plt.colorbar(cax=cax,orientation='vertical',extend='max')cb.ax.tick_params(labelsize=11...
TypeError: fun() got multiple valuesforkeyword argument'y' 位置参数和关键字参数 defsay(a,b,*args,**kwargs):printa,b,args,kwargs a:位置参数 b:位置参数 *args:不固定的位置参数 **kwargs:关键字参数 pack:打包 unpack:解包 命名关键字参数,不推荐用 ...
def largest_label_volume(im, bg=-1):vals, counts = np.unique(im, return_counts=True)counts = counts[vals != bg]vals = vals[vals != bg]if len(counts) > 0:return vals[np.argmax(counts)]else:return Nonedef segment_lung_mask(image, fill_lung_structures=True):# not actually binary...