通过排序重新排列结果（Python 2.7.15）

时间：2019-05-09 23:53:37

标签： python-2.7

我正在尝试通过排序来重新排列行。

如果“ MCS7”更改为“ MCS11”，如下所示， 您将如何编码？ 

list = [['', '', '1', '2412', 'MCS11', 'Burst Power (Average)', '-100', '30', '12.09', 'dBm', 'PASS'],
['', '', '1', '2412', 'MCS11', 'EVM All Carriers (Average)', '', '-27', '-31.56', 'dB', 'PASS'],
['', '', '1', '2412', 'MCS11', 'EVM Data Carriers (Average)', '', '-27', '-31.45', 'dB', 'PASS'],
['', '', '1', '2412', 'MCS11', 'EVM Pilot Carriers (Average)', '', '-8', '-33.38', 'dB', 'PASS'],
['', '', '1', '2412', 'MCS11', 'Center Freq. Error (Average)', '-60300', '60300', '663.96', 'Hz', 'PASS'],
['', '', '1', '2412', 'MCS5', 'Burst Power (Average)', '-100', '30', '12.09', 'dBm', 'PASS'],
['', '', '1', '2412', 'MCS5', 'EVM All Carriers (Average)', '', '-27', '-31.56', 'dB', 'PASS'],
['', '', '1', '2412', 'MCS5', 'EVM Data Carriers (Average)', '', '-27', '-31.45', 'dB', 'PASS'],
['', '', '1', '2412', 'MCS5', 'EVM Pilot Carriers (Average)', '', '-8', '-33.38', 'dB', 'PASS'],
['', '', '1', '2412', 'MCS5', 'Center Freq. Error (Average)', '-60300', '60300', '663.96', 'Hz', 'PASS'],
['', '', '1', '2412', 'MCS6', 'Burst Power (Average)', '-100', '30', '12.02', 'dBm', 'PASS'],
['', '', '1', '2412', 'MCS6', 'EVM All Carriers (Average)', '', '-27', '-32.08', 'dB', 'PASS'],
['', '', '1', '2412', 'MCS6', 'EVM Data Carriers (Average)', '', '-27', '-31.98', 'dB', 'PASS'],
['', '', '1', '2412', 'MCS6', 'EVM Pilot Carriers (Average)', '', '-8', '-33.56', 'dB', 'PASS'],
['', '', '1', '2412', 'MCS6', 'Center Freq. Error (Average)', '-60300', '60300', '763.52', 'Hz', 'PASS']]
for l in sorted(list, key = lambda x: ( x[4], x[5] ) ):
    print l

我希望通过订购“ MCS5〜MCS11”获得如下所示的输出。

['', '', '1', '2412', 'MCS5', 'Burst Power (Average)', '-100', '30', '12.09', 'dBm', 'PASS']]
['', '', '1', '2412', 'MCS5', 'EVM All Carriers (Average)', '', '-27', '-31.56', 'dB', 'PASS'],
['', '', '1', '2412', 'MCS5', 'EVM Data Carriers (Average)', '', '-27', '-31.45', 'dB', 'PASS'],
['', '', '1', '2412', 'MCS5', 'EVM Pilot Carriers (Average)', '', '-8', '-33.38', 'dB', 'PASS'],
['', '', '1', '2412', 'MCS5', 'Center Freq. Error (Average)', '-60300', '60300', '663.96', 'Hz', 'PASS'],
['', '', '1', '2412', 'MCS6', 'Burst Power (Average)', '-100', '30', '12.02', 'dBm', 'PASS'],
['', '', '1', '2412', 'MCS6', 'EVM All Carriers (Average)', '', '-27', '-32.08', 'dB', 'PASS'],
['', '', '1', '2412', 'MCS6', 'EVM Data Carriers (Average)', '', '-27', '-31.98', 'dB', 'PASS'],
['', '', '1', '2412', 'MCS6', 'EVM Pilot Carriers (Average)', '', '-8', '-33.56', 'dB', 'PASS'],
['', '', '1', '2412', 'MCS6', 'Center Freq. Error (Average)', '-60300', '60300', '763.52', 'Hz', 'PASS'],
['', '', '1', '2412', 'MCS11', 'Burst Power (Average)', '-100', '30', '12.09', 'dBm', 'PASS'],
['', '', '1', '2412', 'MCS11', 'EVM All Carriers (Average)', '', '-27', '-31.56', 'dB', 'PASS'],
['', '', '1', '2412', 'MCS11', 'EVM Data Carriers (Average)', '', '-27', '-31.45', 'dB', 'PASS'],
['', '', '1', '2412', 'MCS11', 'EVM Pilot Carriers (Average)', '', '-8', '-33.38', 'dB', 'PASS'],
['', '', '1', '2412', 'MCS11', 'Center Freq. Error (Average)', '-60300', '60300', '663.96', 'Hz', 'PASS'],

1 个答案:

答案 0 :(得分：1)

您需要根据内部列表中的一个元素对列表进行排序。一种  类似的问题（在此处使用列表元组被询问：How to sort (list/tuple) of lists/tuples?）

您可以使用key paramter of sort()/sorted()和lambda或  8operator.itemgetter]（https://docs.python.org/2/library/operator.html#operator.itemgetter）：

data = [
['', '', '1', '2412', 'MCS7', 'Burst Power (Average)', '-100', '30', '12.09', 'dBm', 'PASS'],
['', '', '1', '2412', 'MCS7', 'EVM All Carriers (Average)', '', '-27', '-31.56', 'dB', 'PASS'],
['', '', '1', '2412', 'MCS7', 'EVM Data Carriers (Average)', '', '-27', '-31.45', 'dB', 'PASS'],
['', '', '1', '2412', 'MCS7', 'EVM Pilot Carriers (Average)', '', '-8', '-33.38', 'dB', 'PASS'],
['', '', '1', '2412', 'MCS7', 'Center Freq. Error (Average)', '-60300', '60300', '663.96', 'Hz', 'PASS'],
['', '', '1', '2412', 'MCS5', 'Burst Power (Average)', '-100', '30', '12.09', 'dBm', 'PASS'],
['', '', '1', '2412', 'MCS5', 'EVM All Carriers (Average)', '', '-27', '-31.56', 'dB', 'PASS'],
['', '', '1', '2412', 'MCS5', 'EVM Data Carriers (Average)', '', '-27', '-31.45', 'dB', 'PASS'],
['', '', '1', '2412', 'MCS5', 'EVM Pilot Carriers (Average)', '', '-8', '-33.38', 'dB', 'PASS'],
['', '', '1', '2412', 'MCS5', 'Center Freq. Error (Average)', '-60300', '60300', '663.96', 'Hz', 'PASS'],
['', '', '1', '2412', 'MCS6', 'Burst Power (Average)', '-100', '30', '12.02', 'dBm', 'PASS'],
['', '', '1', '2412', 'MCS6', 'EVM All Carriers (Average)', '', '-27', '-32.08', 'dB', 'PASS'],
['', '', '1', '2412', 'MCS6', 'EVM Data Carriers (Average)', '', '-27', '-31.98', 'dB', 'PASS'],
['', '', '1', '2412', 'MCS6', 'EVM Pilot Carriers (Average)', '', '-8', '-33.56', 'dB', 'PASS'],
['', '', '1', '2412', 'MCS6', 'Center Freq. Error (Average)', '-60300', '60300', '763.52', 'Hz', 'PASS']]

# sort by 5th value and 6th value so that same 5th are alphabetically sorted
for l in sorted(data, key = lambda x: ( x[4], x[5] ) ):
    print l

输出：

['', '', '1', '2412', 'MCS5', 'Burst Power (Average)', '-100', '30', '12.09', 'dBm', 'PASS']
['', '', '1', '2412', 'MCS5', 'Center Freq. Error (Average)', '-60300', '60300', '663.96', 'Hz', 'PASS']
['', '', '1', '2412', 'MCS5', 'EVM All Carriers (Average)', '', '-27', '-31.56', 'dB', 'PASS']
['', '', '1', '2412', 'MCS5', 'EVM Data Carriers (Average)', '', '-27', '-31.45', 'dB', 'PASS']
['', '', '1', '2412', 'MCS5', 'EVM Pilot Carriers (Average)', '', '-8', '-33.38', 'dB', 'PASS']
['', '', '1', '2412', 'MCS6', 'Burst Power (Average)', '-100', '30', '12.02', 'dBm', 'PASS']
['', '', '1', '2412', 'MCS6', 'Center Freq. Error (Average)', '-60300', '60300', '763.52', 'Hz', 'PASS']
['', '', '1', '2412', 'MCS6', 'EVM All Carriers (Average)', '', '-27', '-32.08', 'dB', 'PASS']
['', '', '1', '2412', 'MCS6', 'EVM Data Carriers (Average)', '', '-27', '-31.98', 'dB', 'PASS']
['', '', '1', '2412', 'MCS6', 'EVM Pilot Carriers (Average)', '', '-8', '-33.56', 'dB', 'PASS']
['', '', '1', '2412', 'MCS7', 'Burst Power (Average)', '-100', '30', '12.09', 'dBm', 'PASS']
['', '', '1', '2412', 'MCS7', 'Center Freq. Error (Average)', '-60300', '60300', '663.96', 'Hz', 'PASS']
['', '', '1', '2412', 'MCS7', 'EVM All Carriers (Average)', '', '-27', '-31.56', 'dB', 'PASS']
['', '', '1', '2412', 'MCS7', 'EVM Data Carriers (Average)', '', '-27', '-31.45', 'dB', 'PASS']
['', '', '1', '2412', 'MCS7', 'EVM Pilot Carriers (Average)', '', '-8', '-33.38', 'dB', 'PASS']

了解有关排序的更多信息：

关于lambda：Why are Python lambdas useful?

要按“纯”数值排序，请使用：

for l in sorted(data, key = lambda x: ( int(x[4][3:]) , x[5]) ):
    print l

零件

int(x[4][3:])

通过切片去除“ MCS”，并将其余部分转换为整数，作为元组的第一部分。

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