cm=confusion_matrix(y_test, y_pred, labels=knn.classes_) color='white' disp=ConfusionMatrixDisplay(confusion_matrix=cm, display_labels=knn.classes_) disp.plot() plt.show() Run the Classification Report in Python With data from the confusion matrix, you can interpret the results by looking ...
在较新版本的 scikit-learn 中,用于显示混淆矩阵的正确类名是 ConfusionMatrixDisplay(注意首字母大写)。 导入正确的类名或函数名: 确保你的导入语句正确无误。对于 ConfusionMatrixDisplay,正确的导入方式如下: python from sklearn.metrics import ConfusionMatrixDisplay 查看sklearn.metrics的官方文档以获取更多信息...
...矢量化数组运算要比等价的纯Python方式快上一两个数量级 利用数组进行数据处理 将条件逻辑表述为数组运算 传统方式缺点: 列表推导的局限性 纯Python代码,速度不够快。...x, y, c in zip(x_arr, y_arr, cond)] # 通过列表推到实现 print(result) print(np.where(cond, x_arr, y_arr) ) # 使用...
Describe the bug python:3.9.9 mac os:12.1 skicit-learn: 0.24.2 from sklearn.metrics import ConfusionMatrixDisplay ConfusionMatrixDisplay.from_estimator() after import sklearn when use ConfusionMatrixDisplay.from_estimator return an error...
ExampleGet your own Python Server importmatplotlib.pyplotasplt importnumpy fromsklearnimportmetrics actual = numpy.random.binomial(1,.9,size =1000) predicted =numpy.random.binomial(1,.9,size =1000) confusion_matrix =metrics.confusion_matrix(actual, predicted) ...
问调整ConfusionMatrixDisplay (ScikitLearn)的大小EN关闭swap swapoff -a 1.创建交换分区的文件:增加2G...
python中使用keras训练mnist模型,用yellowbrick绘制模型的confusion_matrix(混淆矩阵)可视化 代码如下: 1importlmdb2importnumpy as np3importtensorflow as tf4importbinascii5importcaffe6importmatplotlib.pyplot as plt7importPIL.Image8fromioimportBytesIO910importkeras11fromkerasimportSequential12fromkeras.layersimport...
在Python脚本中,我们首先需要导入confusion_matrix和ConfusionMatrixDisplay libraries。你可以通过以下代码进行导入。 ``` from sklearn.metrics import confusion_matrix from sklearn.metrics import ConfusionMatrixDisplay ``` 2. 定义变量 为了展示混淆矩阵,在我们开始使用confusionchart函数之前,我们需要定义一些变量。
Representation of a confusion matrix in Python. Image by the author. In Python, we also have the option to output the confusion matrix as a heatmap using the ConfusionMatrixDisplay function, visually showcasing which cases have a more significant error rate. However, to use the heatmap, it ...
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