24. Python Pandas 資料分析 - 基礎教學 By 彭彭
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什麼是Pandas?: 概念類似試算表的資料分析套件
基礎學習項目
- 安裝Pandas套件
- 準備環境:PIP套件管理工具:安裝Python時,就一起安裝在你的電腦裡了
- 安裝Pandas:pip3 install pandas
- 認識單維度的資料 Series
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圖片出自於影片中2:52
- 建立series
- 載入Pandas模組
import pandas as pd
以列表資料為底,建立Series
pd.Series(列表)
- 使用Series
import pandas as pd
data=pd.Series(列表)
data.max() >找到最大值
data.median >計算中位數
data=data*2 >放大兩倍
- 認識雙維度的資料 DataFrame
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圖片為影片中4:54
- 建立DataFrame
- 載入Pandas模組
import pandas as pd
以字典資料為底 建立DataFrame
pd.DataFrame(字典)
- 取得特定欄(直向)
import pandas as pd
data=pd.DataFrame(字典)
data["欄位名稱"]
- 取得特定欄(橫向)
import pandas as pd
data=pd.DataFrame(字典)
data.iloc[列編號] 列編號按順序由0開始累加
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