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  • Utilisez Python pour proposer l'année de la colonne de date dans les deux CSV, faire une nouvelle colonne, puis combiner les deux tableaux CSV en un seul tableau avec la colonne de date et le numéro d'identification.

Utilisez Python pour proposer l'année de la colonne de date dans les deux CSV, faire une nouvelle colonne, puis combiner les deux tableaux CSV en un seul tableau avec la colonne de date et le numéro d'identification.

Questions et réponses du rseoc 2021-11-25 10:05:18
utilisez python pour proposer ann
J'ai essayé d'en mettre deux.csvDate dans la colonne année de présentation,Faire une nouvelle colonne,Deux de plus.csvTableau par nouvelle date colonne etIDNo. To Merge into a table.
Première étape,Montre.1Et tableaux2DeUSERDATEAnnée moyenne,Faire une nouvelle colonne,USERDAE_YEAR

Tableau1 ADSXLIST
Phase ID RID SITEID VISCODE VISCODE2 USERDATE
ADNI1 2 2 107 m06 m06 2006/3/7
ADNI1 4930 2 107 m36 m36 2008/8/29
..... ......
ADNI1 4 5 107 m06 m06 2006/3/9
ADNI1 196 5 107 m12 m12 2006/9/6
Tableau2 summary
Phase ID RID PTID SITEID VISCODE VISCODE2 USERDATE USERDATE2 EXAMDATE
ADNI1 2 2 011_S_0002 107 bl bl 2005/10/1 2005/9/29
ADNI1 336 2 011_S_0002 107 m06 m06 2006/4/27 2006/3/6
...
ADNI1 3136 4 022_S_0004 10 m18 m18 2007/6/22 2007/5/14
ADNI1 6060 4 022_S_0004 10 m36 m36 2008/12/1 2008/11/18

Et en mettre deux autrescsvDans le tableau,RIDEtUSERDAE_YEARMême section,Former un nouveaucsvTableau.

Codes liés au problème,Ne collez pas la capture d'écran 

import pandas as pdimport osos.chdir(r'D:\BaiduNetdiskDownload\ADNI database\Diagnosis')file1=pd.read_csv(r'ADSXLIST.csv')file1['USERDAE_YEAR']=file1['USERDATE'].split(‘/’,1)[0]print(file1['USERDAE_YEAR'])
Résultats de l'opération et contenu du rapport d'erreur

0 0 2006
1 0 2006

 ...

4883 0 2006

C'est une erreur. .

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