交替符号,列排序,熊猫DF

时间:2020-05-06 13:37:14

标签: python pandas dataframe matrix

我可以列出

mylist = [0.1,0.2,-.09,-.9,0.001,-0.001,0.05,-0.05,.9,.8,-.7] 使用功能 AltSignSort (我的列表)对该列表进行排序,并获得:

Out [206]:[-0.9、0.9,-0.7、0.8,-0.09、0.2,-0.05、0.1,-0.001、0.05、0.001]

请注意,该列表是按交替符号w /从0到最小的最大位移进行排序的(此功能如​​下)。

我想要执行的是pandas df的列排序(如上述方式)。例如,df.corr()给出矩阵的成对相关。是否有可能以这种方式对其列进行排序。谢谢。

def AltSignSort(array): 
    # Assistance was recieved at https://www.geeksforgeeks.org/
    # This code is inspired by an example given by Arnab Kundu 
    # sort the array in ascending order 
    array.sort() 
  
    # get index to first element of the list 
    first = 0
    first = first + 1
    index = 1  
    while ( index < (len(array) + 1)/2 ):       
        index = index + 1
        # pop last element in the array
        val = array[-1] 
        array.pop() 

        # insert it after next minimum element 
        array.insert(first, val) 
        # increment the pointer for next pair 
        first = first + 2
    return(array)'''

0 个答案:

没有答案