DeniuHe的博客

import numpy as npimport copyimport pandas as pdfrom sklearn import datasetsfrom sklearn.decomposition import PCAfrom sklearn.preprocessing import StandardScalerMNIST = datasets.fetch_mldata('...

package classifier;public class getSqrt { public static void main(String[] args){ double a = 15; System.out.println(Math.sqrt(a)); System.out.println(Math.floor(Math.sqr...

package classifier;import weka.core.Instances;import weka.core.converters.ConverterUtils.DataSource;import weka.core.converters.ArffSaver;import java.util.Random;import java.io.File;public cl...

import numpy as npimport pandas as pdfrom sklearn import datasetsX,y = datasets.load_breast_cancer(return_X_y=True)y = np.vstack(y)print(X.shape)print(y.shape)data = np.hstack((X,y))print(da...