Dictionary of Gems and Gemology

Dictionary of Gems and Gemology
Author: Mohsen Manutchehr-Danai
Publisher: Springer Science & Business Media
Total Pages: 575
Release: 2013-03-09
Genre: Science
ISBN: 3662042886

The rapid growth of gemological sciences and mineralogy demands a dictionary such as this for gemologists, mineralogists, geologists, jewel dealers, industry and hobbyists. With some 16,000 comprehensive definitions, supplemented by more than 250 diagrams and figures, this is a one-stop reference to any matter dealing with gems and gemology.

A Dictionary of Confusable Phrases

A Dictionary of Confusable Phrases
Author: Yuri Dolgopolov
Publisher: McFarland
Total Pages: 406
Release: 2016-02-01
Genre: Literary Criticism
ISBN: 0786459956

Covering over 10,000 idioms and collocations characterized by similarity in their wording or metaphorical idea which do not show corresponding similarity in their meanings, this dictionary presents a unique cross-section of the English language. Though it is designed specifically to assist readers in avoiding the use of inappropriate or erroneous phrases, the book can also be used as a regular phraseological dictionary providing definitions to individual idioms, cliches, and set expressions. Most phrases included in the dictionary are in active current use, making information about their meanings and usage essential to language learners at all levels of proficiency.

The Book of R

The Book of R
Author: Tilman M. Davies
Publisher: No Starch Press
Total Pages: 833
Release: 2016-07-16
Genre: Computers
ISBN: 1593276516

The Book of R is a comprehensive, beginner-friendly guide to R, the world’s most popular programming language for statistical analysis. Even if you have no programming experience and little more than a grounding in the basics of mathematics, you’ll find everything you need to begin using R effectively for statistical analysis. You’ll start with the basics, like how to handle data and write simple programs, before moving on to more advanced topics, like producing statistical summaries of your data and performing statistical tests and modeling. You’ll even learn how to create impressive data visualizations with R’s basic graphics tools and contributed packages, like ggplot2 and ggvis, as well as interactive 3D visualizations using the rgl package. Dozens of hands-on exercises (with downloadable solutions) take you from theory to practice, as you learn: –The fundamentals of programming in R, including how to write data frames, create functions, and use variables, statements, and loops –Statistical concepts like exploratory data analysis, probabilities, hypothesis tests, and regression modeling, and how to execute them in R –How to access R’s thousands of functions, libraries, and data sets –How to draw valid and useful conclusions from your data –How to create publication-quality graphics of your results Combining detailed explanations with real-world examples and exercises, this book will provide you with a solid understanding of both statistics and the depth of R’s functionality. Make The Book of R your doorway into the growing world of data analysis.

Dictionary of Gems and Gemology

Dictionary of Gems and Gemology
Author: Robert M. Shipley
Publisher: Read Books Ltd
Total Pages: 271
Release: 2011-03-23
Genre: Science
ISBN: 1446547019

Many of the earliest books, particularly those dating back to the 1900s and before, are now extremely scarce and increasingly expensive. We are republishing these classic works in affordable, high quality, modern editions, using the original text and artwork.