如何在PHP代码中实现功率谱计算 [英] How to implement power spectrum calculation in PHP code

问题描述

我试图在php中实现功率谱计算。有没有可用于功率谱的类文件



我尝试过：



我尝试手动实现功率谱公式，但结果不同

I tried to implement the power spectrum calculation in php. Is there any class files are available for power spectrum

What I have tried:

I tried implement manually the power spectrum formula but result is different

推荐答案

我们无法直接帮助你：我们不知道你是怎么回事测试你的实现，所以我们无法分辨出错误的实现，算法，测试数据，或结果的评估。



所以，这取决于你。

幸运的是，你有一个工具可以帮助你找到正在发生的事情：调试器。你如何使用它取决于你的编译器系统，但是一个快速的谷歌用于你的IDE名称和调试器应该给你你需要的信息。



放一个断点在函数的第一行，并通过调试器运行代码。然后查看您的代码，并查看您的数据并找出手动应该发生的事情。然后单步执行每一行检查您预期发生的情况正是如此。如果不是，那就是当你遇到问题时，你可以回溯（或者再次运行并仔细观察）以找出原因。


对不起，但我们不能为你做到这一点 - 时间让你学习一门新的（非常非常有用的）技能：调试！

We can't help you directly with that: we have no idea how you are testing your implementation, so we have no way to tell is the implementation that is at fault, or the algorithm, or the test data, or the evaluation of the results.

So, it's going to be up to you.
Fortunately, you have a tool available to you which will help you find out what is going on: the debugger. How you use it depends on your compiler system, but a quick Google for the name of your IDE and "debugger" should give you the info you need.

Put a breakpoint on the first line in the function, and run your code through the debugger. Then look at your code, and at your data and work out what should happen manually. Then single step each line checking that what you expected to happen is exactly what did. When it isn't, that's when you have a problem, and you can back-track (or run it again and look more closely) to find out why.

Sorry, but we can't do that for you - time for you to learn a new (and very, very useful) skill: debugging!

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