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1000 tulosta hakusanalla R Flesch

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Sciencia Scripts
2023
pokkari
Наука о данных с использованием R - это комплексная область, объединяющая статистический анализ, машинное обучение и программирование для извлечения информации из данных. R является популярным языком программирования среди специалистов по работе с данными благодаря наличию обширных библиотек и инструментов, специально разработанных для манипулирования данными и их визуализации. В области Data Science с использованием R специалисты используют статистические возможности R для изучения и анализа данных, выявления закономерностей, тенденций и взаимосвязей. Описательная статистика используется для обобщения и визуализации данных, а инференциальная - для предсказаний и выводов на основе выборочных данных. Кроме того, Data Science с использованием R предполагает реализацию алгоритмов машинного обучения для построения прогностических моделей. R предлагает множество пакетов для решения таких задач, как регрессия, классификация, кластеризация и рекомендательные системы. Эти алгоритмы позволяют специалистам по изучению данных выявлять закономерности в больших массивах данных и делать точные прогнозы.
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Sciencia Scripts
2024
pokkari
В эпоху быстрых изменений окружающей среды, в которой мы живем, расширение знаний о взаимодействии между организмами и их экосистемами является основополагающим фактором для получения информации, которая может быть использована в практике защиты и охраны природы. Экология - важнейшая наука, позволяющая понять возникновение, распространение и эволюцию живых организмов, особенно сидячих растений. Достижения в области статистического моделирования, особенно регрессионные методы, стали важным помощником в исследовании причинно-следственных факторов в экологических закономерностях видов и их взаимодействий. Этот прогресс получил широкое распространение в программном обеспечении R благодаря разработке пакетов для различных видов анализа. Содержание этой книги посвящено различным регрессионным моделям на языке R, применяемым в экологии растений, и основано на практических примерах анализов на основе реальных данных, свободно предоставленных авторами. Используя простой и понятный язык, эта книга может быть использована аудиторией из различных академических областей, но особенно аспирантами и исследователями в области экологии, биоразнообразия, лесной инженерии и агрономии.
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R

R

Arne Torp

Samlaget
2007
sidottu
Forfattaren fortel om lyden R, som eigentleg ikkje er éin lyd, men mange. Både rulle-r og skarre-r har sin plass i det norske språket, men forfattaren viser òg at r-en har fleire lydlege slektningar: Den tjukke l-en er til dømes veslebror til r-en og stamfar til retrofleksane, som samtidig også er avkom etter r-en. Forfattaren dreg også ut i Europa på jakt etter "ur-r-en" og fortel historia om korleis skarre-r-en har spreidd seg. Med litteraturliste og liste over faguttrykk.
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R-t, Margaret, and the Rats of Nimh

R-t, Margaret, and the Rats of Nimh

Jane Leslie Conly; Leonard (ILT) Lubin

HarperCollins Children's Books
1991
pokkari
When Margaret and her younger brother, Artie, get lost in the woods on a family camping trip, they are rescued by rats -- the superintelligent rats of NIMH. Taken into the rat's community, the children are safe for the time being. But winter is coming. Margaret and Artie have to get back home. And when they do, they must protect the rats who have helped them. Everything depends on their silence... but it's hard to evade questions forever. Children's Choices for 1991 (IRA/CBC)VOYA's Best Science Fiction, Fantasy, and Horror 1990Parenting Honorable Mention, Reading Magic Award
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R and Data Mining

R and Data Mining

Yanchang Zhao

Academic Press Inc
2013
sidottu
R and Data Mining introduces researchers, post-graduate students, and analysts to data mining using R, a free software environment for statistical computing and graphics. The book provides practical methods for using R in applications from academia to industry to extract knowledge from vast amounts of data. Readers will find this book a valuable guide to the use of R in tasks such as classification and prediction, clustering, outlier detection, association rules, sequence analysis, text mining, social network analysis, sentiment analysis, and more.Data mining techniques are growing in popularity in a broad range of areas, from banking to insurance, retail, telecom, medicine, research, and government. This book focuses on the modeling phase of the data mining process, also addressing data exploration and model evaluation.With three in-depth case studies, a quick reference guide, bibliography, and links to a wealth of online resources, R and Data Mining is a valuable, practical guide to a powerful method of analysis.
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R and Python for Oceanographers

R and Python for Oceanographers

Hakan Alyuruk

Elsevier Science Publishing Co Inc
2019
nidottu
R and Python for Oceanographers: A Practical Guide with Applications describes the uses of scientific Python packages and R in oceanographic data analysis, including both script codes and graphic outputs. Each chapter begins with theoretical background that is followed by step-by-step examples of software applications, including scripts, graphics, tables and practical exercises for better understanding of the subject. Examples include frequently used data analysis approaches in physical and chemical oceanography, but also contain topics on data import/export and GIS mapping. The examples seen in book provide uses of the latest versions of Python and R libraries.
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R for Everyone

R for Everyone

Jared Lander

Addison Wesley
2017
nidottu
Using the open source R language, you can build powerful statistical models to answer many of your most challenging questions. R has traditionally been difficult for non-statisticians to learn, and most R books assume far too much knowledge to be of help. R for Everyone is the solution. Drawing on his unsurpassed experience teaching new users, professional data scientist Jared P. Lander has written the perfect tutorial for anyone new to statistical programming and modeling. Organized to make learning easy and intuitive, this guide focuses on the 20 percent of R functionality you’ll need to accomplish 80 percent of modern data tasks. Lander’s self-contained chapters start with the absolute basics, offering extensive hands-on practice and sample code. You’ll download and install R; navigate and use the R environment; master basic program control, data import, and manipulation; and walk through several essential tests. Then, building on this foundation, you’ll construct several complete models, both linear and nonlinear, and use some data mining techniques. By the time you’re done, you won’t just know how to write R programs, you’ll be ready to tackle the statistical problems you care about most. Coverage Includes: Exploring R, RStudio, and R packages Using R for math: variable types, vectors, calling functions, and more Exploiting data structures, including data.frames, matrices, and lists Creating attractive, intuitive statistical graphics Writing user-defined functions Controlling program flow with if, ifelse, and complex checks Improving program efficiency with group manipulations Combining and reshaping multiple datasets Manipulating strings using R’s facilities and regular expressions Creating normal, binomial, and Poisson probability distributions Programming basic statistics: mean, standard deviation, and t-tests Building linear, generalized linear, and nonlinear models Assessing the quality of models and variable selection Preventing overfitting, using the Elastic Net and Bayesian methods Analyzing univariate and multivariate time series data Grouping data via K-means and hierarchical clustering Preparing reports, slideshows, and web pages with knitr Building reusable R packages with devtools and Rcpp Getting involved with the R global community
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R.U.R. (Rossum's Universal Robots)

R.U.R. (Rossum's Universal Robots)

Karel Capek

Penguin Putnam Inc
2004
pokkari
A visionary work of science fiction that introduced the word "robot"Written in 1920, premiered in Prague in 1921, and first performed in New York in 1922—garnered worldwide acclaim for its author and popularized the word robot. Mass-produced as efficient laborers to serve man, Capek’s Robots are an android product—they remember everything but think of nothing new. But the Utopian life they provide ultimately lacks meaning, and the humans they serve stop reproducing. When the Robots revolt, killing all but one of their masters, they must strain to learn the secret of self-duplication. It is not until two Robots fall in love and are christened “Adam” and “Eve” by the last surviving human that Nature emerges triumphant.For more than seventy years, Penguin has been the leading publisher of classic literature in the English-speaking world. With more than 1,700 titles, Penguin Classics represents a global bookshelf of the best works throughout history and across genres and disciplines. Readers trust the series to provide authoritative texts enhanced by introductions and notes by distinguished scholars and contemporary authors, as well as up-to-date translations by award-winning translators.
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R.U.R. and The Insect Play

R.U.R. and The Insect Play

K. & J. Capek

Oxford University Press
1963
nidottu
Josef and Karel Capek were the best known literary figures of liberated Czechoslovakia after 1918. Josef won a considerable reputation as a painter of the Cubist school, later developing his own playful primitive style. He collaborated with his brother in composing sketches, stories, and plays, as well as writing two short novels of his own and critical essays in which he defended the art of the unconscious, of children, and of savages. Following Hitler's invasion of 1939, Josef Capek was sent to a German concentration camp. He died at Belsen in April 1945. Karel Capek became a journalist and for a time stage manager of the theatre in Vinohrady. Though a writer of novels, visionary romances, travel books, stories , and essays, Karel is best known for his plays. His last plays, written just before the entry of Hitler into Czechoslovakia, deal with the rise of dictatorship and the terrible consequences of war. Karel Capek died on Christmas day, 1938. After the success of R.U.R. (Rossums' Universal Robots, 1920) seen in London in 1923, the brothers collaborated in their best-known work, The Insect Play (1921). Both plays are satires depicting the horrors of a regimented technical world and the terrible end of the populace if they fail to rise against their oppressors. They reflect the world in which the Capeks lived and give a commentary on its grosser follies.
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R. H. Charles

R. H. Charles

James C. VanderKam

Oxford University Press
2023
sidottu
R.H. Charles: A Biography first situates Charles's work in the history of biblical scholarship. The remainder of the book is divided into three parts that draw on material stored in several archives and other sources. The first provides an account of his early life and education in Ireland. Part two is devoted to his Oxford years (1890-1913). Within a chronological framework, the chapters regarding the Oxford period focus on his pioneering work with Jewish apocalypses as evident in his many textual editions, translations, and commentaries. For all of his major publications an attempt is made to assess how his work was received at the time and how it continues to affect the field of early Judaism. The third part furnishes a biographical overview of his work as a canon of Westminster (1913-31). At the Abbey, he carried out pastoral duties but also published books that made contributions to publicly debated issues such as divorce, while at the same time continuing his scholarly endeavours. The volume includes bibliographies of Charles's many publications and of works cited.
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R. G. Collingwood: An Autobiography and other writings

R. G. Collingwood: An Autobiography and other writings

Oxford University Press
2017
nidottu
This volume presents a many-faceted view of the Oxford philosopher R. G. Collingwood. At its centre is his Autobiography, published in 1939, which has the status of a cult classic for its compelling 'story of his thought'. Collingwood's work has enjoyed renewed attention in recent years, with new editions of his great philosophical works. This volume republishes the Autobiography alongside a previously unpublished account by Collingwood of a journey to the East Indies in 1938-1939. These writings are accompanied by eleven specially written essays. Several of these examine aspects of Collingwood's life--not just the Autobiography, but what he doesn't discuss in that work, from his childhood to his professorship at Oxford. And the essays also examine aspects of his work on philosophy, politics, history, and archaeology, in the context of his life.
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R. O. A. M. Lyne: Collected Papers on Latin Poetry

R. O. A. M. Lyne: Collected Papers on Latin Poetry

R. O. A. M. Lyne

Oxford University Press
2007
sidottu
This volume presents a wide range of pieces from a world-class Latinist which displays both his diverse interests as a scholar and his consistent concern with Augustan texts, their language and literary texture. The range of articles, written over more than three decades and including one previously unpublished piece, covers the same connected territory - largely Virgil, Horace, and elegy. R. O. A. M. Lyne's consistent approach of close reading means that the articles form a coherent whole, while his compelling style as an engaged literary analyst ensures that these are not dry or forbidding pieces.
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R.K. Narayan

R.K. Narayan

Ranga Rao

OUP India
2017
sidottu
R.K. Narayan occupies centre stage among Indian English writers of the twentieth century, with fifteen novels and novellas and more than half a dozen collections of short stories to his credit. He was the first Indian writer in English to win the Sahitya Akademi Award (1958). This work is a definitive study of the man and the writer. Ranga Rao presents an intimate picture of Narayan, based on his personal experiences with the Narayan himself and his friends and relatives. Rao does detailed critical analyses of all of Narayan's novels and novellas, reading them through the lens of the Indian philosophical concept of the three 'gunas' (quality or virtue): 'sattvic' (harmonious), 'rajasic' (passionate), and 'tamasic' (chaotic). Ranga Rao post-scripts his critique with wide-ranging endnotes, offering plenty of facts and filiations, drawn from critics as well as friends and interviewers of Narayan, and from the novelist's own non-fictional works.
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