arr=np.array([1,2,3,4,5,6])# 将数组分割成 3 个子数组new_arrays=np.array_split(arr,3)print(new_arrays)# 输出:# [array([1, 2]), array([3, 4]), array([5, 6])]# 指定分割位置new_arrays=np.array_split(arr,[2,5])print(new_arrays)# 输出:# [array([1, 2]), array([3...
y= np.split(x, 3)#平均分成三份,不能平均的话则会报错print(y) y= np.split(x, 3, axis=0)#平均分成三份,不能平均的话则会报错,axis默认为0print(y)#不均等分割 np.array_split()y = np.array_split(x, 4, axis=0)#第0项分割出来的元素最多,剩下的均等分print('不均等分割:',y) y=...
In [40]: a = np.array([[2,2], [2,3]]) In [41]: a.flatten() Out[41]: array([2, 2, 2, 3]) In [43]: a.reshape(-1) Out[43]: array([2, 2, 2, 3]) 但是像这种不规则维度的多维数组就不能转换成功了,还是本身 a = np.array([[[2,3]], [2,3]]) 转换成二维表示的...
print(splitArrays) Run Code Output [array([[1, 2]]), array([[3, 4]]), array([[5, 6]])] Example 2: Split an Array by Index import numpy as np array1 = np.array( [1, 2, 3, 4, 5, 6] ) # indices at which array is split splitIndices = [2, 5, 8] # split into...
'array', 'array2string', 'array_equal', 'array_equiv', 'array_repr', 'array_split', 'array_str', 'asanyarray', 'asarray', 'asarray_chkfinite', 'ascontiguousarray', 'asfarray', 'asfortranarray', 'asmatrix', 'asscalar', 'atleast_1d', 'atleast_2d', 'atleast_3d', 'average'...
先看如下示例：>>>a=np.arange(12)**2# the first 12 square numbers>>>i=np.array([1,1,3,...
b = np.array([2,4,6]) # Stack two arrays row-wise print(np.vstack((a,b))) >>>[[135] [246]] # Stack two arrays column-wise print(np.hstack((a,b))) >>>[135246] 分割数组 举例: # Split array into groups of ~3
4.np.split 数组分割 5.np.vsplit 分成上下两部分 6.np.hsplit 分成左右两部分 一:合并 1.启动jupyter,创建一个信息的notebook,导入numpy import numpy as np 1. 2.合并两个一维数组 #1.创建两个数组a和b a = np.array([1,2,3]) b = np.array([4,5,6]) ...
NumPy(Numerical Python的缩写)是一个开源的Python科学计算库。使用NumPy,就可以很自然地使用数组和矩阵。NumPy包含很多实用的数学函数,涵盖线性代数运算、傅里叶变换和随机数生成等功能。本文主要介绍一下NumPy中array_split方法的使用。 原文地址:Python numpy.array_split函数方法的使用 ...
Split an array into multiple sub-arrays. Please refer to thesplitdocumentation. The only difference between these functions is thatarray_splitallowsindices_or_sectionsto be an integer that doesnotequally divide the axis. See also split Split array into multiple sub-arrays of equal size. ...