【发布时间】：2021-12-26 19:37:30
【问题描述】：
我有一个看起来像这样的数据框
现在列名已从日期格式转换为 %b %Y 格式，并且是从 2019 年 1 月到 2021 年 10 月。我想根据日期而不是按字母顺序重新排序列名。
我该怎么做？ 我使用了以下行，但它似乎不起作用
table.sort_index(axis='columns', level='Date')
编辑：这是print(table.head(10).to_dict(orient='list'))的输出
{('AADT', 'Apr 2019'): [4180.722222222223, 18075.733333333334, 1304536.8333333333, 62335.3, 1039.3333333333333, 9797.733333333334, 62949.36666666667, 527094.5333333333, 7893.0625, 10071.620689655172], ('AADT', 'Apr 2020'): [31081.166666666668, 17484.366666666665, 753747.0, 36726.03333333333, nan, 9451.0, 24169.966666666667, 292953.73333333334, 8537.1, 5484.466666666666], ('AADT', 'Apr 2021'): [2231.7272727272725, 21075.266666666666, 1109779.4666666666, 71246.8, nan, 10868.48275862069, 25227.2, 418751.43333333335, nan, 10701.863636363636], ('AADT', 'Aug 2019'): [2904.2903225806454, 20891.645161290322, 1466448.1935483871, 50817.6129032258, 1342.6666666666667, 8048.612903225807, 55199.54838709677, 609280.2903225806, 8958.258064516129, 10431.483870967742], ('AADT', 'Aug 2020'): [10822.379310344828, 12799.1, 679384.7741935484, 38622.54838709677, 1655.5, 5720.4838709677415, 12387.90322580645, 252135.5806451613, 9662.724137931034, 12194.724137931034], ('AADT', 'Aug 2021'): [3887.3225806451615, 12065.483870967742, 940915.0645161291, 59411.48387096774, 1863.5652173913043, 4154.129032258064, 23908.516129032258, 383140.6129032258, 17013.612903225807, 17311.483870967742], ('AADT', 'Dec 2019'): [nan, 29175.0, 1504749.322580645, 73835.83870967742, nan, 7232.142857142857, 61149.25, 584672.7096774194, nan, 8295.739130434782], ('AADT', 'Dec 2020'): [13414.380952380952, 13985.129032258064, 691473.6129032258, 33008.12903225807, nan, 10286.807692307691, 5184.032258064516, 256402.03225806452, 13108.444444444445, 9272.064516129032], ('AADT', 'Feb 2019'): [3646.4285714285716, 15604.5, 1044447.1428571428, 46783.96428571428, nan, 7491.285714285715, 19002.428571428572, 391334.5, 6558.107142857143, 6011.964285714285], ('AADT', 'Feb 2020'): [7531.482758620689, 18667.241379310344, 1107406.2068965517, 53251.24137931035, nan, 6785.379310344828, 20535.96551724138, 409618.5172413793, 8480.586206896553, 9712.620689655172], ('AADT', 'Feb 2021'): [2889.1428571428573, 13605.75, 1027667.6428571428, 66543.21428571429, nan, 11329.857142857143, 16417.25, 387610.75, 17206.2, 12769.392857142857], ('AADT', 'Jan 2019'): [3825.8709677419356, 16945.354838709678, 1043053.9677419355, 43416.3870967742, nan, 7369.064516129032, 17330.064516129034, 390853.5483870968, 9425.709677419354, 7200.580645161291], ('AADT', 'Jan 2020'): [2249.451612903226, 21037.225806451614, 1062939.0, 56543.54838709677, nan, 7452.225806451613, 21468.709677419356, 395211.0, 8022.967741935484, 8072.5161290322585], ('AADT', 'Jan 2021'): [2171.714285714286, 13143.032258064517, 872891.9354838709, 50554.645161290326, nan, 7621.740740740741, 8855.290322580646, 331211.67741935485, 10596.066666666668, 14136.161290322581], ('AADT', 'Jul 2019'): [2939.36, 18458.827586206895, 1490796.0, 64612.83870967742, 3319.1785714285716, 7838.290322580645, 64218.87096774193, 595895.3548387097, 11158.933333333332, 10345.967741935483], ('AADT', 'Jul 2020'): [8153.653846153846, 17704.423076923078, 696114.2903225806, 44171.967741935485, 1810.5172413793102, 5099.896551724138, 15129.129032258064, 258649.74193548388, 9227.23076923077, 10859.423076923076], ('AADT', 'Jul 2021'): [2941.3870967741937, 14229.064516129032, 1016602.3870967742, 55530.58064516129, 1884.4516129032259, 4855.870967741936, 31988.870967741936, 425938.12903225806, 16346.0, 18524.612903225807], ('AADT', 'Jun 2019'): [3332.0344827586205, 15839.033333333333, 1372660.5, 61044.5, 3884.7241379310344, 8082.433333333333, 60063.96666666667, 569774.2, 14599.333333333334, 12828.5], ('AADT', 'Jun 2020'): [6245.888888888889, 15431.518518518518, 825799.3, 43901.5, 1867.7333333333333, 8874.068965517241, 21052.633333333335, 302394.7, 10843.037037037036, 9797.111111111111], ('AADT', 'Jun 2021'): [3416.4615384615386, 58768.5, 907133.0, 50799.166666666664, 1987.8, 4894.8, 22486.766666666666, 393780.26666666666, nan, 17403.958333333332], ('AADT', 'Mar 2019'): [3190.3870967741937, 17057.709677419356, 1185417.2258064516, 54922.096774193546, nan, 9740.612903225807, 29554.74193548387, 456925.3870967742, 8201.37037037037, 9367.838709677419], ('AADT', 'Mar 2020'): [19192.516129032258, 17663.935483870966, 830373.1612903225, 55640.58064516129, nan, 9049.0, 21661.967741935485, 316354.29032258067, 8921.838709677419, 8638.612903225807], ('AADT', 'Mar 2021'): [1871.4347826086957, 17696.4, 1143384.5161290322, 75820.4, nan, 11566.3, 19212.833333333332, 430195.5806451613, nan, 14244.333333333334], ('AADT', 'May 2019'): [3238.0, 13838.032258064517, 1332669.935483871, 56042.77419354839, 2129.6875, 9247.548387096775, 56724.709677419356, 552480.3225806452, 11927.806451612903, 15388.41935483871], ('AADT', 'May 2020'): [15637.58064516129, 17504.322580645163, 855213.2903225806, 48857.903225806454, 1828.3636363636363, 10741.548387096775, 26456.83870967742, 319674.70967741933, 14051.032258064517, 10396.193548387097], ('AADT', 'May 2021'): [3893.6666666666665, 13900.129032258064, 903837.4193548387, 56877.16129032258, 1921.6, 6080.0, 29688.09677419355, 378961.32258064515, nan, 15112.0], ('AADT', 'Nov 2019'): [nan, 22217.85714285714, 1503773.3333333333, 66929.6, nan, 9282.6, 82848.0, 571871.2333333333, nan, 7841.555555555556], ('AADT', 'Nov 2020'): [24571.65, 20366.758620689656, 691888.9666666667, 33084.26666666667, nan, 14329.310344827587, 7821.266666666666, 264809.7, 15502.521739130434, 14558.172413793103], ('AADT', 'Oct 2019'): [1925.4444444444443, 22052.47619047619, 1498169.3870967743, 54511.93548387097, nan, 9876.9, 73759.85714285714, 587274.3548387097, 10594.777777777777, 9077.333333333334], ('AADT', 'Oct 2020'): [22728.129032258064, 22289.16129032258, 670292.2903225806, 32471.032258064515, nan, 9804.483870967742, 6325.580645161291, 250591.5806451613, 10681.37037037037, 10965.645161290322], ('AADT', 'Oct 2021'): [3264.7, 22671.533333333333, 1001493.1, 61869.86666666667, nan, 4570.413793103448, 28537.5, 374477.4, 12551.366666666667, 14900.2], ('AADT', 'Sep 2019'): [4031.9666666666667, 24609.266666666666, 1453336.2333333334, 54464.63333333333, nan, 9714.9, 57786.4, 631562.7, 11894.933333333332, 13868.266666666666], ('AADT', 'Sep 2020'): [30643.608695652172, 17740.076923076922, 709198.5333333333, 35773.6, nan, 7293.814814814815, 10384.933333333332, 256959.9, 9393.421052631578, 12787.739130434782], ('AADT', 'Sep 2021'): [2784.2, 14646.133333333333, 980093.1, 60560.36666666667, nan, 4127.1, 25578.133333333335, 366471.1, 14351.533333333333, 10283.966666666667]}
这是print(table.head(5))的输出
AADT \
Date Apr 2019
State Postal Code State FIPS County Name County FIPS
AK 2.0 Aleutians East Borough 2013.0 4.180722e+03
Aleutians West Census Area 2016.0 1.807573e+04
Anchorage Municipality 2020.0 1.304537e+06
Bethel Census Area 2050.0 6.233530e+04
Bristol Bay Borough 2060.0 1.039333e+03
\
Date Apr 2020
State Postal Code State FIPS County Name County FIPS
AK 2.0 Aleutians East Borough 2013.0 31081.166667
Aleutians West Census Area 2016.0 17484.366667
Anchorage Municipality 2020.0 753747.000000
Bethel Census Area 2050.0 36726.033333
Bristol Bay Borough 2060.0 NaN
\
Date Apr 2021
State Postal Code State FIPS County Name County FIPS
AK 2.0 Aleutians East Borough 2013.0 2.231727e+03
Aleutians West Census Area 2016.0 2.107527e+04
Anchorage Municipality 2020.0 1.109779e+06
Bethel Census Area 2050.0 7.124680e+04
Bristol Bay Borough 2060.0 NaN
\
Date Aug 2019
State Postal Code State FIPS County Name County FIPS
AK 2.0 Aleutians East Borough 2013.0 2.904290e+03
Aleutians West Census Area 2016.0 2.089165e+04
Anchorage Municipality 2020.0 1.466448e+06
Bethel Census Area 2050.0 5.081761e+04
Bristol Bay Borough 2060.0 1.342667e+03
\
Date Aug 2020
State Postal Code State FIPS County Name County FIPS
AK 2.0 Aleutians East Borough 2013.0 10822.379310
Aleutians West Census Area 2016.0 12799.100000
Anchorage Municipality 2020.0 679384.774194
Bethel Census Area 2050.0 38622.548387
Bristol Bay Borough 2060.0 1655.500000
\
Date Aug 2021
State Postal Code State FIPS County Name County FIPS
AK 2.0 Aleutians East Borough 2013.0 3887.322581
Aleutians West Census Area 2016.0 12065.483871
Anchorage Municipality 2020.0 940915.064516
Bethel Census Area 2050.0 59411.483871
Bristol Bay Borough 2060.0 1863.565217
\
Date Dec 2019
State Postal Code State FIPS County Name County FIPS
AK 2.0 Aleutians East Borough 2013.0 NaN
Aleutians West Census Area 2016.0 2.917500e+04
Anchorage Municipality 2020.0 1.504749e+06
Bethel Census Area 2050.0 7.383584e+04
Bristol Bay Borough 2060.0 NaN
\
Date Dec 2020
State Postal Code State FIPS County Name County FIPS
AK 2.0 Aleutians East Borough 2013.0 13414.380952
Aleutians West Census Area 2016.0 13985.129032
Anchorage Municipality 2020.0 691473.612903
Bethel Census Area 2050.0 33008.129032
Bristol Bay Borough 2060.0 NaN
\
Date Feb 2019
State Postal Code State FIPS County Name County FIPS
AK 2.0 Aleutians East Borough 2013.0 3.646429e+03
Aleutians West Census Area 2016.0 1.560450e+04
Anchorage Municipality 2020.0 1.044447e+06
Bethel Census Area 2050.0 4.678396e+04
Bristol Bay Borough 2060.0 NaN
\
Date Feb 2020
State Postal Code State FIPS County Name County FIPS
AK 2.0 Aleutians East Borough 2013.0 7.531483e+03
Aleutians West Census Area 2016.0 1.866724e+04
Anchorage Municipality 2020.0 1.107406e+06
Bethel Census Area 2050.0 5.325124e+04
Bristol Bay Borough 2060.0 NaN
... \
Date ...
State Postal Code State FIPS County Name County FIPS ...
AK 2.0 Aleutians East Borough 2013.0 ...
Aleutians West Census Area 2016.0 ...
Anchorage Municipality 2020.0 ...
Bethel Census Area 2050.0 ...
Bristol Bay Borough 2060.0 ...
\
Date May 2020
State Postal Code State FIPS County Name County FIPS
AK 2.0 Aleutians East Borough 2013.0 15637.580645
Aleutians West Census Area 2016.0 17504.322581
Anchorage Municipality 2020.0 855213.290323
Bethel Census Area 2050.0 48857.903226
Bristol Bay Borough 2060.0 1828.363636
\
Date May 2021
State Postal Code State FIPS County Name County FIPS
AK 2.0 Aleutians East Borough 2013.0 3893.666667
Aleutians West Census Area 2016.0 13900.129032
Anchorage Municipality 2020.0 903837.419355
Bethel Census Area 2050.0 56877.161290
Bristol Bay Borough 2060.0 1921.600000
\
Date Nov 2019
State Postal Code State FIPS County Name County FIPS
AK 2.0 Aleutians East Borough 2013.0 NaN
Aleutians West Census Area 2016.0 2.221786e+04
Anchorage Municipality 2020.0 1.503773e+06
Bethel Census Area 2050.0 6.692960e+04
Bristol Bay Borough 2060.0 NaN
\
Date Nov 2020
State Postal Code State FIPS County Name County FIPS
AK 2.0 Aleutians East Borough 2013.0 24571.650000
Aleutians West Census Area 2016.0 20366.758621
Anchorage Municipality 2020.0 691888.966667
Bethel Census Area 2050.0 33084.266667
Bristol Bay Borough 2060.0 NaN
\
Date Oct 2019
State Postal Code State FIPS County Name County FIPS
AK 2.0 Aleutians East Borough 2013.0 1.925444e+03
Aleutians West Census Area 2016.0 2.205248e+04
Anchorage Municipality 2020.0 1.498169e+06
Bethel Census Area 2050.0 5.451194e+04
Bristol Bay Borough 2060.0 NaN
\
Date Oct 2020
State Postal Code State FIPS County Name County FIPS
AK 2.0 Aleutians East Borough 2013.0 22728.129032
Aleutians West Census Area 2016.0 22289.161290
Anchorage Municipality 2020.0 670292.290323
Bethel Census Area 2050.0 32471.032258
Bristol Bay Borough 2060.0 NaN
\
Date Oct 2021
State Postal Code State FIPS County Name County FIPS
AK 2.0 Aleutians East Borough 2013.0 3.264700e+03
Aleutians West Census Area 2016.0 2.267153e+04
Anchorage Municipality 2020.0 1.001493e+06
Bethel Census Area 2050.0 6.186987e+04
Bristol Bay Borough 2060.0 NaN
\
Date Sep 2019
State Postal Code State FIPS County Name County FIPS
AK 2.0 Aleutians East Borough 2013.0 4.031967e+03
Aleutians West Census Area 2016.0 2.460927e+04
Anchorage Municipality 2020.0 1.453336e+06
Bethel Census Area 2050.0 5.446463e+04
Bristol Bay Borough 2060.0 NaN
\
Date Sep 2020
State Postal Code State FIPS County Name County FIPS
AK 2.0 Aleutians East Borough 2013.0 30643.608696
Aleutians West Census Area 2016.0 17740.076923
Anchorage Municipality 2020.0 709198.533333
Bethel Census Area 2050.0 35773.600000
Bristol Bay Borough 2060.0 NaN
Date Sep 2021
State Postal Code State FIPS County Name County FIPS
AK 2.0 Aleutians East Borough 2013.0 2784.200000
Aleutians West Census Area 2016.0 14646.133333
Anchorage Municipality 2020.0 980093.100000
Bethel Census Area 2050.0 60560.366667
Bristol Bay Borough 2060.0 NaN
[5 rows x 34 columns]
【问题讨论】：
-
请勿发布数据图片，因为我们无法对其进行测试。相反，直接在代码块中发布 DataFrames 的示例和预期的输出。一个不错的方法是将
print(df.head(10).to_dict(orient=‘list’))的输出与print(df.head(10))共享。这使我们能够轻松重现您的问题并为您提供帮助。 -
@HarryPlotter 我已根据要求使用输出更新了我的问题。我必须做一个 df.head(5)，因为我用 df.head(10) 超过了字符限制。
-
谢谢，现在好多了！我会调查的。
标签： python python-3.x pandas dataframe sorting