Exercise: NUMPY Search ArraysConsider the following code:import numpy as nparr = np.array([15, 38, 41, 46])x = np.where(arr%2 == 1)print(x)What will be the printed result? (array([1, 3]),) (array([15, 41]),) (a
import numpy as np from scipy.sparse import csr_matrix arr = np.array([0, 0, 0, 0, 0, 1, 1, 0, 2]) print(csr_matrix(arr)) x importnumpyasnp fromscipy.sparseimportcsr_matrix arr=np.array([0,0,0,0,0,1,1,0,2]) ...
NumPy全称为Numerical Python,是专门处理数组(array)的Python库。 调用numpy NumPy中的数组对象被称为ndarray(多维数组) 创建...
ExampleGet your own Python Server Convert following array with repeated elements to a set: importnumpyasnp arr = np.array([1,1,1,2,3,4,5,5,6,7]) x = np.unique(arr) print(x) Try it Yourself » Finding Union To find the unique values of two arrays, use theunion1d()method. ...
ExampleGet your own Python Server Find the product of the elements of this array: import numpy as nparr = np.array([1, 2, 3, 4])x = np.prod(arr)print(x) Try it Yourself » Returns: 24 because 1*2*3*4 = 24Example Find the product of the elements of two arrays: import ...
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a- distribution parameter. size- The shape of the returned array. ExampleGet your own Python Server Draw out a sample for zipf distribution with distribution parameter 2 with size 2x3: fromnumpyimportrandom x = random.zipf(a=2, size=(2,3)) ...
Exercise: NUMPY Reshape ArraysConsider the following code:import numpy as nparr = np.array([[1, 2, 3], [4, 5, 6]])newarr = arr.reshape(6)print(newarr)What will be the printed result? [[][1 2 3 4 5 6] [[1 2 3 4 5 6]]] [1 2 3 4 5 6] Submit Answer » What...
Exercise:NUMPY Slicing Arrays Try Again YesNo Next Exercise » Consider the following code: import numpy as np arr = np.array([1, 2, 3, 4, 5, 6, 7]) print(arr[:2]) What will be the printed result? [1] [1 2] [1 2 3] ...
Exercise: NUMPY Filter ArraysConsider the following code:import numpy as nparr = np.array(['a', 'b', 'c'])x = arr[[True, False, True]]print(x)What will be the printed result? ['b'] ['a' 'c'] ['a' 'b' 'c'] Submit Answer » ...