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作业6 线性 岭回归 多项式

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veypi 2021-01-17 05:14:17 +08:00
parent 633e4ab5ed
commit 4ba30640fb
1 changed files with 5 additions and 1 deletions
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6
numerical_analysis/6/main.py
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@ -8,7 +8,11 @@ from sklearn.preprocessing import PolynomialFeatures
def f1(x, e): def f1(x, e):
return math.exp(-x) * math.sin(x) \ return math.exp(-x) * math.sin(x) \
+ random.normalvariate(0, e ** 2) + random.normalvariate(0, e)
def f2(x, y, e):
return math.exp(-x ** 2 - y ** 2) * math.sin(x * y) + random.normalvariate(0, e)
def solve1(x, y): def solve1(x, y):