pandas.get_dummies
pandas.get_dummies(data, prefix=None, prefix_sep='_', dummy_na=False, columns=None, sparse=False, drop_first=False, dtype=None)
將分類變量變為虛擬變量，get_dummies內的
data 可為String,list,turple型態
import pandas as pd#String
season=['spring','sumber','fall','winter']
season_dummies = pd.get_dummies(season)
print(season_dummies)# list
season=('spring','sumber','fall','winter')
lists = list(season)
season_dummies = pd.get_dummies(lists)
print(season_dummies)
prefix 為每個變數前面加上先行詞
import pandas as pd
season=('spring','sumber','fall','winter')
lists = list(season)
season_dummies = pd.get_dummies(lists,prefix='2020')
print(season_dummies)
Series.head(self: ~FrameOrSeries, n: int = 5) → ~FrameOrSeries
傳回前幾筆data
