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machine learning in R

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一，网址： http://cran.r-project.org/web/views/MachineLearning.html 维护人员：Torsten Hothorn 版本：2008-02-18 18:19:21 翻译：R-fox, 2008-03-18 机器学习是计算机科学和统计学的边缘交叉领域，R关于机器学习的包主要包括以下几个方面： 1）神经网络（Neural Networks）： nnet包执行单隐层前馈神经网络，nnet是VR包的一部分（ http://cran.r-project.org/web/packages/VR/index.html ）。 2）递归拆分（Recursive Partitioning）：递归拆分利用树形结构模型，来做回归、分类和生存分析，主要在rpart包（ http://cran.r-project.org/web/packages/rpart/index.html ）和tree包（ http://cran.r-project.org/web/packages/tree/index.html ）里执行，尤其推荐rpart包。Weka里也有这样的递归拆分法，如：J4.8, C4.5, M5，包Rweka提供了R与Weka的函数的接口（ http://cran.r-project.org/web/packages/RWeka/index.html

How to solve java.lang.NoClassDefFoundError?

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问题 I've tried both the example in Oracle's Java Tutorials. They both compile fine, but at run-time, both come up with this error: Exception in thread "main" java.lang.NoClassDefFoundError: graphics/shapes/Square at Main.main(Main.java:7) Caused by: java.lang.ClassNotFoundException: graphics.shapes.Square at java.net.URLClassLoader$1.run(URLClassLoader.java:366) at java.net.URLClassLoader$1.run(URLClassLoader.java:355) at java.security.AccessController.doPrivileged(Native Method) at java.net

How to solve java.lang.NoClassDefFoundError?

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R语言中的机器学习

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转载自 R中文论坛(http://rbbs.biosino.org/Rbbs/posts/list/192.page) Machine Learning & Statistical Learning （机器学习 & 统计学习）网址： http://cran.r-project.org/web/views/MachineLearning.html 维护人员：Torsten Hothorn 版本：2008-02-18 18:19:21 翻译：R-fox, 2008-03-18 机器学习是计算机科学和统计学的边缘交叉领域，R关于机器学习的包主要包括以下几个方面： 1）神经网络（Neural Networks）： nnet包执行单隐层前馈神经网络，nnet是VR包的一部分（ http://cran.r-project.org/web/packages/VR/index.html ）。 2）递归拆分（Recursive Partitioning）：递归拆分利用树形结构模型，来做回归、分类和生存分析，主要在rpart包（ http://cran.r-project.org/web/packages/rpart/index.html ）和tree包（ http://cran.r-project.org/web/packages/tree/index.html ）里执行，尤其推荐rpart包

How to make python package refer to packaged, non-python executable (.exe); Windows

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问题 I am putting together a Python package that uses a Cygwin executable without having Cygwin installed. This means that I have an executable ( .exe ) file and a library ( .dll ) file inside my package. I am doing this so that the tool can be used on Windows by people who only use Windows and Python. I am new to Python packages, so I appreciate any help. The Main Question How do I make my package point to the executable file inside my package? This would be used, for example, instead of the

Possible to state explicit versions of package dependencies?

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问题 I tend to be rather explicit than implicit about the code I write. So after having managed to create my own packages, the next thing that immediately comes to my mind is how best to ensure robustness and reliability of my code. Part of that has to do with the packages my package depends on. Actual Question In that respect: is it possible to explicitly state which version of a package dependency is required/desired? I'm looking for ways that don't require stating the actual path to, say, the

Does a function like dist/rdist exist which handles NAs?

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问题 I'm using rdist function from fields package, but now I want to handle NAs in my matrix, like the dist function does. There exist such a function? One solution would be to use dist directly, but my matrix has over 150K rows, so this is not an option. Edit: Note than removing rows or columns with complete.cases or na.omit is not the solution I'm looking for. The intended behaviour is described in the help dist function: Missing values are allowed, and are excluded from all computations

Which R packages use some kind of random process when attached? [closed]

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问题 Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed last year . A follow-up to this question: Why would an R package load random numbers? I wonder if there's a way to generate a list of all packages that include some kind of random process when attached. 回答1: I do not know of a way to be absolutely certain you've made an exhaustive list. However, we can check all of the

Why does Java want package names defined? [closed]

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问题 Closed . This question is opinion-based. It is not currently accepting answers. Want to improve this question? Update the question so it can be answered with facts and citations by editing this post. Closed 6 years ago . Why can't Java figure it out based on the folder structure? It seems that the mapping to packages is already specified by the root source folder plus the path to that particular file. It is completely coupled, and doing a refactor without an IDE is absolutely tedious -

Impletmenting a custom meteor accounts package

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问题 I have been writing my own meteor accounts package and I seem to be missing something. I am not getting any errors in the browser or in the terminal so it's difficult for me to troubleshoot. The only error I get is from the accounts-ui package itself which is saying 'No login services configured.' The code can be seen at https://github.com/khamoud/meteor-accounts-stripe if anyone could take a look. Thanks in advance. 回答1: I created a accounts package myself a while ago and my advice would be