def getKthElement(k): index1 ,index2 = 0 ,0 while True: # 特殊情况: #存在数组为空或者k =1的情况 if index1 == m: return nums2[index2+k-1] if index2 == n: return nums2[index1+k-1] if k == 1: return min(nums1[index1], nums2[index2]) #正常情况: newIndex1 = min(...
6,2] #store list in tmp to retrieve index tmp=list(K) #sort list so that largest elements are on the far right K.sort() #To get the 5 largest elements print K[-N:] #To get the 5th largest element print K[-N] #get index of the 5th largest element print tmp.index(K[-N])...
获得特定IndexError的原因是循环中的i和j实际上是数组，如果插入print语句，就可以看到这些数组。您的代码...
(array([3, 6, 6]), array([4, 5, 1])) >>> np.unravel_index(1621, (6,7,8,9)) (3, 1, 4, 1) 例子: Consider a (6,7,8) shape array, what is the index (x,y,z) of the 100th element ? >>> print np.unravel_index(100,(6,7,8)) (1, 5, 4) 解释: 给定一个矩阵...
numpy arrays of different sizea1=np.zeros((2,2,3)) a2=np.ones((2,2))# Display original arraysprint("Original array 1:\n",a1,"\n")print("Original array 2:\n",a2,"\n")# removing dimension of a1res=a1[:,:,0]# Display the resultprint("Shaoe of array 1:\n",res.shape,"\...
np.argwhere( a ) Find the indices of array elements that are non-zero, grouped by element. 返回非0的数组元组的索引,其中a是要索引数组的条件。 返回数组中所有大于1的数字的索引值。...numpy记录 一: np.where() numpy记录 一: np.where() 先贴一个官方解释点这里。 先看输入格式numpy.where(co...
The return value in this case is a tuple with the array as the first element and a float with the step size as the second.Remove ads Nonscalar Values for Higher-Dimensional ArraysYou can also use nonscalar values for start and stop. This returns a higher-dimensional array:...
array1 = np.array([0.12,0.17,0.24,0.29])array2 = np.array([0.13,0.19,0.26,0.31])# with a tolerance of 0.1, it should return False:np.allclose(array1,array2,0.1)False# with a tolerance of 0.2, it should return True:np.allclose(array1,array2,0.2)True ...
np.arange(10) # > array([ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]) 1. 2. 3.期望的输出: # > array([[0, 1, 2, 3, 4], # > [5, 6, 7, 8, 9]]) 1. 2.答案: arr = np.arange(10) arr.reshape(2, -1) # Setting to -1 automatically decides the number of cols # ...
a array_like Array to be reshaped. newshape int or tuple of integers The new shape and the original shape should be compatible.If the new shape is an integer i, the reshaped array will be a 1-D array with the length i. If the new shape is a tuple, each tuple element specifies ...