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View Code? Open in Web Editor NEWAI与数据科学各类工具库速查表与参考代码
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hanxinzi-ai ustchope zerovspace yujun001 dani-rodric newpron phrmgb gossiperg shanghaoli0913 askintution sniper-xx zhulintao islinxu l-net-1992 bopo zerounnet hangzhang10 foreverjay godhelpgrace ukaserge hewuxin chengshifen 2369954989 jwlai-cloud xuranyang freedream520 maxxortrue happp-hap lidashu jtcheng chrisl6666 jinyanya0619 pgods1 yqxin sqf4411 bise86 jiarenyou wfxu souljazhao 18622300398 mob-vision xiel0325 dyanxi tiandazhao double001 huangliang0828 michaelyuanye cuiyimeng cifangyiquan williamshen0305 usstwindy fangichao babam afdbillions ericalee25 baoruiyanapieceofidol liuweihan826 erikzhang-9762 walhalla-summary zhttttttty meyejack vvcln carlqyuan ltargaryen liuguan1984 rui143 freezesoul nickscut z80649411 zyhdf5 hulaba aifeisky123 wsadczh mdlcg 44510 alayi arykin lldreamvip lukerlv zqdv37951 yanghualv7 jangocheng lc6937 edgarlau saiyazhuang kevin-dw jianghui1229 27315 lonelycube rabbita qwuang ao23zou mmsoyaa muyangly ucliwenbin liulangf chenqing1991 sundylgz leekaenwoo ketejunawesome-ai-cheatsheets's Issues
关于pandas进阶部分的数据滤重部分的代码
在'pandas进阶-cheatsheet-code.ipynb'部分的数据滤重部分有
df.index.duplicated() #查找重复索引
和
df.dropna() #去除缺失值NaN，
不太明白这里的df指的是什么数据，根据'pandas基础-cheatsheet-code.ipynb'，df指的是country，capital和population的3x3矩阵，运行得到的结果跟进阶版jupyter里的结果不一致，可以请教一下么？
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