Dep. Variable: y R-squared: 0.000 Mean Model: Constant Mean Adj. R-squared: 0.000 Vol Model: GARCH Log-Likelihood: 26056.2 Distribution: Normal AIC: -52104.5 Method: Maximum Likelihood BIC: -52078.4 No. Observations: 4999 Date: Sun, Jun 04 2023 Df Residuals: 4998 Time: 15:33:28 Df Model: 1 Mean Model
时间: 2024-02-10 10:08:48 浏览: 98
这个summary显示了一个GARCH模型的拟合结果。其中,Dep. Variable表示因变量,即建模的时间序列;R-squared和Adj. R-squared表示模型的拟合优度,这里都是0,说明模型并没有解释时间序列的变化;Vol Model表示波动率模型,这里使用的是GARCH模型;Log-Likelihood表示对数似然函数值,用来评估模型的拟合程度;Distribution表示残差的分布假设,这里是正态分布;AIC和BIC分别表示赤池信息准则和贝叶斯信息准则,用来比较不同模型的拟合优度,值越小说明模型拟合越好;Method表示模型的估计方法,这里是最大似然估计;No. Observations表示样本观测值的数量;Df Residuals表示残差的自由度;Df Model表示模型参数的自由度;Mean Model表示均值模型,这里是常数均值模型。
相关问题
Running npm run serve --open npm ERR! code ENOENT npm ERR! syscall open npm ERR! path D:\code-project\vue-dev\package.json npm ERR! errno -4058 npm ERR! enoent ENOENT: no such file or directory, open 'D:\code-project\vue-dev\package.json' npm ERR! enoent This is related to npm not being able to find a file. npm ERR! enoent npm ERR! A complete log of this run can be found in: npm ERR! D:\Program Files\nodejs\node_global\_logs\2023-05-04T16_34_29_823Z-debug.log (node:14552) UnhandledPromiseRejectionWarning: Error: Command failed: npm run serve --open at makeError (D:\Program Files\nodejs\node_global\node_modules\@vue\cli\node_modules\execa\index.js:174:9) at D:\Program Files\nodejs\node_global\node_modules\@vue\cli\node_modules\execa\index.js:278:16 at processTicksAndRejections (internal/process/task_queues.js:93:5) at async runNpmScript (D:\Program Files\nodejs\node_global\node_modules\@vue\cli\lib\util\runNpmScript.js:17:10) (node:14552) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). (rejection id: 2) (node:14552) [DEP0018] DeprecationWarning: Unhandled promise rejections are deprecated. In the future, promise rejections that are not handled will terminate the Node.js process with a non-zero exit code.
这个错误信息显示,npm 找不到 package.json 文件,可能是你的项目目录不正确或者缺少了 package.json 文件。你可以检查一下项目目录是否正确,并且是否有 package.json 文件。如果没有,你可以通过运行 `npm init` 命令来创建一个新的 package.json 文件。另外,你也可以尝试重新安装 npm。
java使用org.apache.maven:maven-model库来找出所有依赖(包括直接依赖和间接依赖,并标记哪些间接依赖属于哪个直接依赖)
要找出所有的直接依赖和间接依赖,并标记哪些间接依赖属于哪个直接依赖,您可以使用以下代码:
```java
import org.apache.maven.model.Dependency;
import org.apache.maven.model.Model;
import org.apache.maven.model.io.xpp3.MavenXpp3Reader;
import org.codehaus.plexus.util.xml.pull.XmlPullParserException;
import java.io.FileReader;
import java.io.IOException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
public class MavenDependencyFinder {
public static void main(String[] args) {
String pomFilePath = "path/to/your/pom.xml";
try {
MavenXpp3Reader reader = new MavenXpp3Reader();
Model model = reader.read(new FileReader(pomFilePath));
// 存储直接依赖和它们的间接依赖
Map<Dependency, List<Dependency>> dependenciesMap = new HashMap<>();
// 遍历直接依赖
for (Dependency dependency : model.getDependencies()) {
List<Dependency> indirectDependencies = new ArrayList<>();
collectIndirectDependencies(dependency, model, indirectDependencies);
dependenciesMap.put(dependency, indirectDependencies);
}
// 打印直接依赖和它们的间接依赖
for (Map.Entry<Dependency, List<Dependency>> entry : dependenciesMap.entrySet()) {
Dependency directDependency = entry.getKey();
List<Dependency> indirectDependencies = entry.getValue();
System.out.println("Direct Dependency: " + directDependency.getGroupId() + ":" +
directDependency.getArtifactId() + ":" +
directDependency.getVersion());
for (Dependency indirectDependency : indirectDependencies) {
System.out.println(" Indirect Dependency: " + indirectDependency.getGroupId() + ":" +
indirectDependency.getArtifactId() + ":" +
indirectDependency.getVersion());
}
}
} catch (IOException | XmlPullParserException e) {
e.printStackTrace();
}
}
private static void collectIndirectDependencies(Dependency dependency, Model model, List<Dependency> indirectDependencies) {
for (Dependency dep : model.getDependencies()) {
if (dep.getGroupId().equals(dependency.getGroupId()) &&
dep.getArtifactId().equals(dependency.getArtifactId()) &&
dep.getVersion().equals(dependency.getVersion())) {
indirectDependencies.add(dep);
collectIndirectDependencies(dep, model, indirectDependencies);
}
}
}
}
```
请确保将 `path/to/your/pom.xml` 替换为您实际的 `pom.xml` 文件的路径。这段代码将读取指定的 `pom.xml` 文件,并打印出所有的直接依赖和它们的间接依赖。
希望这可以满足您的需求!如果您有任何其他问题,请随时提问。
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