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python 數據 - Coggle Diagram
python 數據
.series( [ ] )
S1 = pd.Series(["a","b","c","d"])
.DateFrame( [ [ ], [ ], [ ] ] )
字典 { }
讀檔
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取得列欄位
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顯示前幾行
第五章
缺失值尋找
info or isnull
- 1 more item...
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data = {"小寫":["a","b","c","d"],"大寫":["A","B","C","D"]}
df42 = pd.DataFrame(data,index = ["一","二","三","四"])
Index(['小寫', '大寫'], dtype='object') = columns
Index(['一', '二', '三', '四'], dtype='object') = index
f2 = pd.DataFrame([["a","A"],["b","B"],["c","C"],["d","D"]])
DateFrame( , columns= [ ]) 行
DateFrame( , index= [ ] ) 列
DateFrame( ,columns=[ ] ,index=[ ])
df = pd.read_excel("/Users/chihkaochien/Downloads/python_test/data/test5.xlsx", sheet_name="5-4")