

Q Ethan McCallum is a consultant, writer, and technology enthusiast, though perhaps not in that order.
Meer over de auteursParallel R
Data Analysis in the Distributed World
Samenvatting
It's tough to argue with R as a high-quality, cross-platform, open source statistical software product-unless you're in the business of crunching Big Data. This concise book introduces you to several strategies for using R to analyze large datasets. You'll learn the basics of Snow, Multicore, Parallel, and some Hadoop-related tools, including how to find them, how to use them, when they work well, and when they don't.
With these packages, you can overcome R's single-threaded nature by spreading work across multiple CPUs, or offloading work to multiple machines to address R's memory barrier.
- Snow: works well in a traditional cluster environment
- Multicore: popular for multiprocessor and multicore computers
- Parallel: part of the upcoming R 2.14.0 release
- R+Hadoop: provides low-level access to a popular form of cluster computing
- RHIPE: uses Hadoop's power with R's language and interactive shell
- Segue: lets you use Elastic MapReduce as a backend for lapply-style operations
Specificaties
Over Stephen Weston
Inhoudsopgave
1. Getting Started
-Why R?
-Why Not R?
-The Solution: Parallel Execution
-A Road Map for This Book
-In a Hurry?
-Summary
2. snow
-Quick Look
-How It Works
-Setting Up
-Working with It
-When It Works...
-...And When It Doesn't
-The Wrap-up
3. multicore
-Quick Look
-How It Works
-Setting Up
-Working with It
-When It Works...
-...And When It Doesn't
-The Wrap-up
4. parallel
-Quick Look
-How It Works
-Setting Up
-Working with It
-Summary of Differences
-When It Works...
-...And When It Doesn't
-The Wrap-up
5. A Primer on MapReduce and Hadoop
-Hadoop at Cruising Altitude
-A MapReduce Primer
-Thinking in MapReduce: Some Pseudocode Examples
-Binary and Whole-File Data: SequenceFiles
-No Cluster? No Problem! Look to the Clouds...
-The Wrap-up
6. R+Hadoop
-Quick Look
-How It Works
-Setting Up
-Working with It
-When It Works...
-...And When It Doesn't
-The Wrap-up
7. RHIPE
-Quick Look
-How It Works
-Setting Up
-Working with It
-When It Works...
-...And When It Doesn't
-The Wrap-up
8. Segue
-Quick Look
-How It Works
-Setting Up
-Working with It
-When It Works...
-...And When It Doesn't
-The Wrap-up
9. New and Upcoming
-doRedis
-RevoScale R and RevoConnectR (RHadoop)
-cloudNumbers.com
Anderen die dit boek kochten, kochten ook
Net verschenen
Rubrieken
- aanbestedingsrecht
- aansprakelijkheids- en verzekeringsrecht
- accountancy
- algemeen juridisch
- arbeidsrecht
- bank- en effectenrecht
- bestuursrecht
- bouwrecht
- burgerlijk recht en procesrecht
- europees-internationaal recht
- fiscaal recht
- gezondheidsrecht
- insolventierecht
- intellectuele eigendom en ict-recht
- management
- mens en maatschappij
- milieu- en omgevingsrecht
- notarieel recht
- ondernemingsrecht
- pensioenrecht
- personen- en familierecht
- sociale zekerheidsrecht
- staatsrecht
- strafrecht en criminologie
- vastgoed- en huurrecht
- vreemdelingenrecht