模組基礎 import numpy #建立一維陣列 #numpy.array([元素1,元素2]) x=numpy.array(["22","19","9","8"]) #建立二維陣列 #numpy.array([[元素1,元素2],[元素1,元素2],[元素1,元素2]]) y=numpy.array([["hdsafg","asjhgf","878392"],["jhyfsdaeku","jhgsda"],["素1","元素2"]]) #排序 x.sort() #print(x) ''' 注意： #如果取最大值和最小值，元素必須是數字 #同一維度各個陣列之間，長度一樣 ''' #會出錯#y=numpy.array([["3","10","2"],["9","7"],["5","9"]]) #會出錯#y=numpy.array([[3,10,2],[9,17],[5,9]]) y=numpy.array([[3,10,2],[9,17,8],[5,9,1]]) xm=y.max() #print(xm) ymin=y.min() #print(ymin) #切片 #陣列[起始下標:最終下標+1] x1=x[1:3] #print(x1) x2=x[:2] #print(x2) x3=x[1:] #print(x3)

#pandas import pandas as pda ''' Series:序列 DataFrame: ''' a=pda.Series([9,2,8,1]) b=pda.DataFrame([["3","10","2"],["9","7","4"],["5","9","1"]]) #取頭部資料，預設前五行 b.head() b.head(2) #取尾部資料，預設後五行 b.tail() b.tail(2) #顯示資料的基本統計資訊 b.describe() #轉置 b.T