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>>>df['owner']= 'Unknown' >>>df date name price shares owner 0 2001-12-01 AA 12.3 100 Unknown 1 2012-02-10 IBM 10.3 30 Unknown 2 2010-04-09 GOOG 32.2 90 Unknown Currently,therowindexaresetto0,1and2. Thesecanbechangedusing‘index’attributeasbelow, >>>df.index=['one', 'two', 'three'] >>>df date name price shares owner one 2001-12-01 AA 12.3 ... ................
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