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pandas的reindex功能
發(fā)布時(shí)間：2025/4/5
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pandas的reindex功能
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pandas的reindex功能挺好用，記錄一下。
數(shù)據(jù)只列出一部分吧。
#---------------------------------------------------------# #---- * reindex命令 * ----# #---------------------------------------------------------#import pandas as pd import matplotlib.pyplot as plt df = pd.read_json( '{"nianji":{"5742":"一年級(jí)","1469":"一年級(jí)","7212":"一年級(jí)","3923":"三年級(jí)","5718":"三年級(jí)","6365":"三年級(jí)","443":"中班","451":"中班","506":"中班","1741":"二年級(jí)","2011":"二年級(jí)","6605":"二年級(jí)","3737":"五年級(jí)","4340":"五年級(jí)","4297":"五年級(jí)","8056":"初一","8036":"初一","8147":"初一","8444":"初三","8275":"初三","8343":"初三","8548":"初二","8561":"初二","8562":"初二","8637":"初四","8714":"初四","8709":"初四","8018":"四年級(jí)","4628":"四年級(jí)","6240":"四年級(jí)","509":"大班","521":"大班","878":"大班","914":"小班","614":"小班","575":"小班","639":"托班","635":"托班","642":"托班"},"right":{"5742":5.0,"1469":4.6,"7212":5.0,"3923":5.0,"5718":5.0,"6365":4.8,"443":5.0,"451":5.0,"506":5.0,"1741":5.0,"2011":5.0,"6605":5.0,"3737":4.2,"4340":5.0,"4297":4.1,"8056":4.3,"8036":4.6,"8147":5.0,"8444":4.3,"8275":4.0,"8343":4.0,"8548":5.0,"8561":4.7,"8562":4.7,"8637":4.4,"8714":4.1,"8709":4.4,"8018":5.0,"4628":5.0,"6240":4.7,"509":4.9,"521":5.0,"878":5.0,"914":4.9,"614":4.8,"575":4.9,"639":4.8,"635":4.9,"642":4.8}}') score_of_everyGrade = pd.pivot_table(index = 'nianji', data=df)['right'] score_of_everyGrade list_of_grade = [ '托班', '小班', '中班', '大班', '一年級(jí)', '二年級(jí)', '三年級(jí)' ,'四年級(jí)', '五年級(jí)', '初一', '初三', '初二', '初四' ] to_img = score_of_everyGrade.reindex(list_of_grade) plt.plot(to_img) plt.xticks(rotation=45)?
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