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Julia for Data Science

You're reading from   Julia for Data Science high-performance computing simplified

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Product type Paperback
Published in Sep 2016
Publisher Packt
ISBN-13 9781785289699
Length 346 pages
Edition 1st Edition
Languages
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Author (1):
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Anshul Joshi Anshul Joshi
Author Profile Icon Anshul Joshi
Anshul Joshi
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Toc

Table of Contents (12) Chapters Close

Preface 1. The Groundwork – Julia's Environment FREE CHAPTER 2. Data Munging 3. Data Exploration 4. Deep Dive into Inferential Statistics 5. Making Sense of Data Using Visualization 6. Supervised Machine Learning 7. Unsupervised Machine Learning 8. Creating Ensemble Models 9. Time Series 10. Collaborative Filtering and Recommendation System 11. Introduction to Deep Learning

Implementation in Julia


Random forests are available in the Julia-registered packages from Kenta Sato:

Pkg.update() Pkg.add("RandomForests") 

This is a CART-based random forest implementation in Julia. This package supports:

  • Classification models

  • Regression models

  • Out-of-bag (OOB) errors

  • Feature importances

  • Various configurable parameters

There are two separate models available in this package:

  • Classification

  • Regression

Each model has its own constructor that is trained by applying the fit method. We can configure these constructors with some keyword arguments listed as follows:

RandomForestClassifier(;n_estimators::Int=10, 
                        max_features::Union(Integer, FloatingPoint, Symbol)=:sqrt, 
                        max_depth=nothing, 
                        min_samples_split::Int=2, 
                        criterion::Symbol=:gini) 

This one is for the classification:

RandomForestRegressor(;n_estimators::Int=10, 
                       max_features...
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