A custom key function can be supplied to customize the sort order, and the reverse flag can be set to request the result in descending order. In [2]: help(list.sort) Help on method_descriptor: sort(...) L.sort(key=None, reverse=False) -> None -- stable sort *IN PLACE* # 一维...
import numpy as np # 创建一个numpy数组 arr = np.array([3, 1, 4, 1, 5, 9, 2, 6, 5, 3, 5]) # 使用numpy的sort函数对数组进行排序,并通过切片操作实现逆序排序 sorted_arr_desc = np.sort(arr)[::-1] # 输出排序后的数组 print("Sorted array in descending order using slicing:", so...
使用负索引切片排序 importnumpyasnparr=np.array([5,2,8,3,6,10])# get the indices that would sort the array in ascending orderascending_indices=arr.argsort()# [1 3 0 4 2 5]# reverse the ascending indices to get descending indicesdescending_indices=ascending_indices[::-1]# [5 2 4 0...
) # Here in [:,n], ':' specifies all the rows and n specifies we need to sort by nth column # [::-1] slices the result in reverse order(descending order) print (inputArray [inputArray [ : ,n ] .argsort ( ) [ : : - 1 ] ] ) 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. ...
To use the `numpy.argsort()` method in descending order in Python, negate the array before calling `argsort()`.
A custom key function can be supplied to customize the sort order, and the reverse flag can be set to request the result in descending order.In [2]: help(list.sort)Help on method_descriptor:sort(...)L.sort(key=None, reverse=False) -> None -- stable sort *IN PLACE* # ⼀维列表...
argsort(a,axis=-1,kind='quicksort',order=None) Returnstheindicesthatwouldsortanarray. Performanindirectsortalongthegivenaxisusingthealgorithmspecified bythe`kind`keyword.Itreturnsanarrayofindicesofthesameshapeas `a`thatindexdataalongthegivenaxisinsortedorder. ...
X.T))# Sort eigenvalues and their eigenvectorsindescending order e_ind_order=np.flip(e_valu...
但是我在 sort 类型的函数中没有 key 参数ndarray 。就我而言,合并字段不是替代方案。 此外,我没有标头,因此,如果我尝试使用 order 参数进行排序,则会出现错误。 ValueError: Cannot specify order when the array has no fields. 我宁愿就地排序或至少获得相同类型的结果 ndarray 。然后我想把它保存到一个文件...
How can I sort a 2-D array using numpy.argsort()? You can sort a 2-D array using numpy.argsort() by specifying the axis parameter. Sorting along rows or columns can be achieved by setting the axis parameter accordingly. Can I sort a 2-D array in descending order using numpy.argsort...