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파이썬독학

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[Python] 3. 다중선형회귀 import pandas as pd import numpy as np import seaborn as sns from sklearn.datasets import load_boston, load_iris from sklearn.datasets import fetch_california_housing from sklearn.linear_model import LinearRegression,Ridge, SGDRegressor from sklearn.neural_network import MLPRegressor from sklearn.model_selection import train_test_split from sklearn.model_selection import GridSearchCV from sklear..

[Python] 6. 표준정규분포(z검정,t검정) import numpy as np import pandas as pd import matplotlib.pyplot as plt import math 정규분포 확률분포함수 pmf 확률질량함수(probability mass function) pdf 확률밀도함수(probability density function) cdf 누적분포함수(cumulative distribution function) ppf 누적분포함수의 역함수(inverse cumulative distribution function) sf 생존함수(survival function) = 1 - 누적분포함수 isf 생존함수의 역함수(inverse survival function) rvs 랜덤 표본 생성(random variable sampling) x..

[Python] 24. pandas DataFrame 데이터 분석 실습 종합 문제 : sort(), pd.cut(),apply(lambda), sr.quantile(), value_counts(), histogram(), pie chart 예제 import pandas as pd import numpy as np import matplotlib.pyplot as plt import matplotlib matplotlib.rcParams['font.family']='Malgun Gothic' matplotlib.rcParams['axes.unicode_minus'] = False 국어점수 데이터 sr = pd.Series( [90,90,55,60,76,80,76,88,30,25], name="국어점수" ) sr.index=['홍길동','이순신','임꺽정','정난정', '이이','이황','정도전','김철수1', '김철수2','김철수3'] sr [OUT] : 홍길동 90 이순신 90 임꺽정 55 정난정 60 이이 76 이황 80 정도전 76 김철수1..

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