我正在生成一个模型列表,模拟每分钟收集一天的数据。我想创建一些随机删除一些数据点的其他模型。有没有一种方法来实现这种行为?下面是我的代码随机删除数据点
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using MathNet.Numerics;
using MathNet.Numerics.Statistics;
public void dataGenerator()
{
int hrs = 24;
int minutes = 60;
int samplesize = hrs * minutes; // this is one day worth of data, with data created every minute
double mean = 50;
double stdev = 1;
int maxmodel = 10;
List<double[]> models = new List<double[]>();
List<double> modelaverage = new List<double>();
List<double> modelvariance = new List<double>();
// generating normal models with different mean/deviations
for (int i = 1; i <= maxmodel; i++)
{
//deviations are incremented by i, to create modles of different deviations, with every model having a different center by 2*i
double[] model = Generate.Normal(samplesize, mean + 2*i, stdev * i);
models.Add(model);
modelaverage.Add(model.Average());
modelvariance.Add(model.Variance());
}
}
只需在0和'models.Length'之间生成一些随机索引,删除索引处的项? –
你需要随机程度如何? – hoodaticus
@hoodaticus说我希望每个观察都有相同的机会被删除。换句话说,每个小时*分钟(1440个观测值)有50%的机会被移除 – syang