exploring everyday things with r and ruby review

... use the standard libraries and any other libraries other than the Ruby core, you will need to require them in your program: require 'base64' In addition to the standard libraries, you ... For example, writing a program that uses several chunks of code from this book does not require Preface | xi Sau Sheong Chang Exploring Everyday Things with R and Ruby Preface Explorers ... of other unofficial R user interfaces, such as R Commander and RStudio. RStudio has a very nice R environment that runs on the server but is acces sible through the browser. Another alternative...

Ngày tải lên: 15/02/2014, 07:20

... book (and also in Ruby programming), are arrays and hashes. Arrays are indexed containers that hold a sequence of objects. You can create arrays using square brackets ( []) or using the Array ... professionals use Safari Books Online as their primary resource for research, problem solving, learning, and certification training. Safari Books Online offers a range of product mixes and pricing ... external libraries to make life easier. Two sets of Ruby libraries come preinstalled with Ruby. Core This is the default set of classes and modules that comes with Ruby, including String, Array,...

Ngày tải lên: 08/03/2014, 18:20

Ngày tải lên: 02/11/2014, 00:49

... important point and much work has been done on conservative management. We here report our experience on fertility sparing with cervical, endometrial and ovarian cancers and include a review ... contra lateral ovary and the uterus now is considered the appropriate surgical treatment for patients with Stage IA grade 1 epithelial ovarian cancer, any stage borderline ovarian tumors with ... literature. With cervical cancer, radical trachelectomy with para-aortic and pelvic lymphadenectomy can be performed in patients with early stage IA1-IB cancers, because they have low recurrence...

Ngày tải lên: 22/03/2014, 11:20

... capitals. The Pragmatic Starter Kit, The Pragmatic Programmer, Pragmatic Programming, Prag matic Bookshelf and the linking g device are trademarks of The Pragmatic Programmers, LLC. Every precaution ... at http://www.pragmaticprogrammer.com Copyright â 2006 Brian Marick. All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmit- ted, in any form, or by ... contained herein. Our Pragmatic courses, workshops, and other products can help you and your team create better software and have more fun. For more information, as well as the latest Pragmatic...

Ngày tải lên: 24/04/2014, 15:09

... testing is considered one of Ruby s niches (largely due to Watir, http://wtr.rubyforge.org/, a tool for driving web browsers). If you’re a programmer, you may already know that Ruby has recently become ... use your computer’s command-line interpreter. The command-line 2 inter- command-line interpreter preter is a program that lets you command the compiler by typing in text, rather than by pointing and ... differences.rb differences.rb:1:in ‘initialize': cannot convert nil into String (TypeError) from differences.rb:1:in ‘open' from differences.rb:1 Not a friendly error message. I encourage...

Ngày tải lên: 29/04/2014, 14:42

... Liability/Disclaimer of Warranty: While the publisher and author have used their best efforts in preparing this book, they make no representations or warranties with respect to the accuracy or completeness ... transition to this very general and powerful computer environment. REFERENCE Ledolter, J. and Burrill, C.: Statistical Quality Control: Strategies and Tools for Continual Improvement. New York: John Wiley ... powerful and free. One may search for the software on the web and download the system. R is similar to Matlab and requires the user to write out simple instructions. The writing of (program) instructions...

Ngày tải lên: 05/05/2014, 13:27

... 1.1 where α is a real number. Differential forms are important generalizations of real functions and distributions. Specially, a differential l-form ω on Ω is a de Rham current 7, Chapter III on Ω with ... access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. We ... Hu, where H is the harmonic projection operator that maps C ∞   l Ω onto H,sothatHu is the harmonic part of u.See8 for more properties of Green’s operator. The nonlinear elliptic partial...

Ngày tải lên: 21/06/2014, 17:20

... performed. Adrenal hemangiomas, however, are extremely rare, and their differential diagnosis preoperatively is rather chal- lenging. Adrenal hemangiomas are most usually cavernous, unilat- eral ... Larger tumors, that are technically challenging and more likely to be malignant are treated preferably with open technique through an anterior (subcostal or midline incision), pos- terior or ... Singapore Med J 2008, 49(9):e236-e237. 3. Forbes TL: Retroperitoneal haemorrhage secondary to rup- tured cavernous hemangioma. Can J Surg 2005, 48:78-79. 4. Sabanegh E, Harris MJ, Grider D: Cavernous...

Ngày tải lên: 09/08/2014, 04:21

... the CYC group but did not report standard errors [8,9]. The authors were contacted but were unable to provide standard error data. We therefore imputed the mean value of the standard errors of the ... using Review Manager Version 4.2 (The Cochrane Collaboration đ , Software Update, Oxford, UK). Results Using the search key words, 249 references were identified and screened for retrieval. From ... (occurrence of infections that required antibiotic therapy, hemorrhagic cystitis, hematuria and hospi- talization) were calculated using relative risks for the rand- omized control trials representing...

Ngày tải lên: 09/08/2014, 13:22

... vein graft. We performed a literature review for cases with Kartagener syndrome, coronary surgery and dextrocardia. Although a few cases of dextrocardia were found in the literature, no case of Kartagener ... CASE REPO R T Open Access Coronary artery bypass surgery in a patient with Kartagener syndrome: a case report and literature review Ioannis Bougioukas 1 , Dimitrios Mikroulis 1 , Bernhard Danner 2 , ... 22(3):346-348. doi:10.1186/1749-8090-5-68 Cite this article as: Bougioukas et al.: Coronary artery bypass surgery in a patient with Kartagener syndrome: a case report and literature review. Journal of Cardiothoracic Surgery 2010 5:68. Submit...

Ngày tải lên: 10/08/2014, 09:22

... this journal. Authors’ contributions AC participated as an observer in the case described, performed an extensive literature review and was primarily responsible for writing the manuscript. SC ... this article as: Chen and Chmell: Heterotopic ossification after patellar tendon repair in a man with trisomy 8 mosaicism: a case report and literature review. Journal of Medical Case Reports 2011 ... physician for the case described and provided guidance throughout the literature review and writing process. Both authors have read and approved the final manuscript. Competing interests The authors declare...

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