5.1 用make_regression数据(无噪音)进行线性回归 代码语言:javascript 代码运行次数:0 运行 AI代码解释 def LinearRegression_for_make_regression(): myutil = util() X,y = make_regression(n_samples=100,n_features=1,n_informative=2,random_state=8) X_train,X_test,y_train,y_test = train_test_sp...
我们执行建议的函数var_names_make_unique(),通过将数字字符串附加到每个重复的索引元素(“1”、“2”等)来使变量名称唯一。 同样地,我们也可以使用obs_names_make_unique()来使obs(=细胞)唯一 代码语言:javascript 代码运行次数:0 运行 AI代码解释 adata.var_names_make_unique()adata.obs_names_make_unique(...
下面的方法将用于合并两个字典。 defmerge_two_dicts(a, b): c = a.copy() # make a copy of a c.update(b) # modify keys and values of a with the ones from breturn ca = { 'x': 1, 'y': 2}b = { 'y': 3, 'z': 4}print(merge_two_dicts(a, b))# {'y': 3, 'x': ...
1. Quick Examples of Copy Array If you are in a hurry, below are some quick examples of how to get a Python NumPy array copy. # Quick examples of copy array# Example 1: Use numpy.copy() functionarray=np.array([4.54,6.99,8.42,10.87,16.94])copy_array=np.copy(array)# Example 2: Us...
import copy x = copy.copy(y) # make a shallow copy of y 浅拷贝,只拷贝父对象, 不拷贝父对象里的子对象 x = copy.deepcopy(y) # make a deep copy of y深拷贝,递归拷贝,拷贝对象及其子对象 For module specific errors, copy.Error is raised. ...
str、byte、bytearray 只包含可打包对象的集合,包括 tuple、list、set 和 dict 定义在模块顶层的函数(使用def定义,[lambda]()函数则不可以) 定义在模块顶层的内置函数 定义在模块顶层的类 某些类实例,这些类的dict属性值或 [__getstate__()]()函数的返回值可以被打包(详情参阅打包类实例这一段) ...
(x,"__reduce__",None)ifreductor:rv=reductor()else:raiseError("un(deep)copyable object of type%s"%cls)ifisinstance(rv,str):y=xelse:y=_reconstruct(x,memo,*rv)# If is its own copy, don't memoize.ifyisnotx:memo[d]=y_keep_alive(x,memo)# Make sure x lives at least as long as...
边界为常量则调用 copyMakeConstBorder_8u。 CV_INSTRUMENT_REGION() 属于 OpenCV 性能测试系统的实现工具框架。 首先 CV_Assert 检查输入参数是否合法。CV_OCL_RUN 在第一个参数满足条件时调用 OpenCL 的实现。_InputArray::getMat AI检测代码解析 CV_INSTRUMENT_REGION(); ...
class CoffeeShop:specialty = 'espresso'def __init__(self, coffee_price):self.coffee_price = coffee_price# instance methoddef make_coffee(self):print(f'Making {self.specialty}for ${self.coffee_price}')# static method @staticmethoddef check_weather():print('Its sunny') # class method@...
freeze_panes : tuple of int (length 2), optional Specifies the one-based bottommost row and rightmost column that is to be frozen. storage_options : dict, optional Extra options that make sense for a particular storage connection, e.g. host, port, username, password, etc. For HTTP(S...