generated from LufsX/Experiment-LogReg
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-3
@@ -50,10 +50,21 @@ def train_logreg(X, y, learning_rate=0.01, iterations=1000, regularization=0.0):
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return weights, bias
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return weights, bias
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def predict_logreg(inX, weights):
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def predict_logreg(inX, weights, bias):
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# 确保 inX 是一维数组
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if inX.ndim == 2 and inX.shape[1] == 1:
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inX = inX.flatten()
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elif inX.ndim > 1:
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raise ValueError("Input data should be one-dimensional or a column vector.")
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# 计算线性输出
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linear_output = np.dot(inX, weights) + bias
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linear_output = np.dot(inX, weights) + bias
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y_predicted = 1 if linear_output >= 0 else 0 # 简化判断条件,因为逻辑回归输出已经通过sigmoid函数处理
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return y_predicted
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# 应用sigmoid函数(如果需要的话)
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# sigmoid_output = 1 / (1 + np.exp(-linear_output))
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# 这里可以返回线性输出或sigmoid输出,取决于您的需求
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return linear_output
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# 这里也写自己的代码实现
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# 这里也写自己的代码实现
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def load_data(filepath):
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def load_data(filepath):
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