gbm3 | Gradient boosted models | Development Tools library

by gbm-developers R Version: v2.1 License: Non-SPDX

X-Ray Key Features Code Snippets Community Discussions(1)Vulnerabilities Install Support

kandi X-RAY | gbm3 Summary

gbm3 is a R library typically used in Utilities, Development Tools applications. gbm3 has no bugs, it has no vulnerabilities and it has low support. However gbm3 has a Non-SPDX License. You can download it from GitHub.

gbm3: generalized boosted models ----0------------------------. Originally written by Greg Ridgeway, added to by various authors, currently maintained by Harry Southworth. Development is discussed --- somewhat --- at . This is the shiny new gbm3 package that is not backwards compatible, but is fast and parallel and --- to some extent --- developed.

Support

Quality

Security

License

Reuse

Support

gbm3 has a low active ecosystem.

It has 130 star(s) with 119 fork(s). There are 34 watchers for this library.

It had no major release in the last 6 months.

There are 26 open issues and 52 have been closed. On average issues are closed in 175 days. There are 5 open pull requests and 0 closed requests.

It has a neutral sentiment in the developer community.

The latest version of gbm3 is v2.1

Quality

gbm3 has 0 bugs and 0 code smells.

Security

gbm3 has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

gbm3 code analysis shows 0 unresolved vulnerabilities.

There are 0 security hotspots that need review.

License

gbm3 has a Non-SPDX License.

Non-SPDX licenses can be open source with a non SPDX compliant license, or non open source licenses, and you need to review them closely before use.

Reuse

gbm3 releases are not available. You will need to build from source code and install.

Installation instructions are not available. Examples and code snippets are available.

Top functions reviewed by kandi - BETA

kandi's functional review helps you automatically verify the functionalities of the libraries and avoid rework.
Currently covering the most popular Java, JavaScript and Python libraries. See a Sample of gbm3

Get all kandi verified functions for this library.

gbm3 Key Features

No Key Features are available at this moment for gbm3.

gbm3 Examples and Code Snippets

No Code Snippets are available at this moment for gbm3.

Community Discussions

Trending Discussions on gbm3

Error reduction in GBM

QUESTION

Error reduction in GBM

Asked 2017-May-23 at 14:44

I would like to know how ErrorReduction is calculated in pretty.gbm.tree function: https://github.com/gbm-developers/gbm3/blob/62c8dafd87b16fe1d2079cdd5058169f1f08967b/R/pretty-gbm-tree.r#L32

This post helped me a lot, but did not quite answer my question. Understanding tree structure in R gbm package

Here is an output of pretty.gbm.tree function for the first tree: output table

How this value of 19167.524 was calculated?

Thanks

...

ANSWER

Answered 2017-May-23 at 14:44

The ErrorReduction is calculated as following:

number of samples in a current node * mse - number of samples in the left child node * mse - number of samples in the right child node *mse

Source https://stackoverflow.com/questions/44001032

Community Discussions, Code Snippets contain sources that include Stack Exchange Network

Vulnerabilities

No vulnerabilities reported

Install gbm3

You can download it from GitHub.

Support

For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .

Find more information at: