“…Write a simple R program, and discover what the language can do Use data types such as vectors, arrays, lists, data frames, and strings Execute code conditionally or repeatedly with branches and loops Apply R add-on packages, and package your own work for others Learn how to clean data you import from a variety of sources Understand data through visualization and summary statistics Use statistical models to pass quantitative judgments about data and make predictions Learn what to do when things go wrong while writing data analysis code…”

“…The volume is divided into three thematic sections: Part I examines modern terrorism in the Islamic world and gives an overview of the major terrorist groups from the past three decades; Part II provides a wide variety of case studies of counterterrorism and irregular warfare operations, spanning from the 1980s to the irregular warfare campaign against the Islamic State in northern Syria in 2018; Part III examines the government instruments used to combat terrorism and wage irregular warfare, such as drones, Theater Special Operations Commands, and Theater Commands. …”

“…Parents often have to navigate and coordinate, largely on their own, a variety of social, medical, and educational support services, adding to the already daunting financial, logistical, and emotional challenges of raising children with special needs. …”

“…However, new evidence from a variety of sources indicates this traditional view is likely overly simplistic. …”

“…The study's goal is to illustrate the approaches taken by a variety of highly diverse states as they confront the increasing challenges of global competition for the industries and jobs of today and tomorrow."…”

“…EPA's pursuit of that goal includes a variety of research activities involving human subjects, such as epidemiologic studies and surveys. …”

“…However, with the increasing globalization of information and the identification of a variety of factors specific to different population subgroups (e.g., young children and women of reproductive age) that influence their nutritional needs, there has been increasing recognition of the need to consider methodological approaches to deriving nutrient reference values (NRVs) that are applicable across countries and that take into account the varying needs of different population subgroups. …”

“…Parenting Matters identifies parenting knowledge, attitudes, and practices associated with positive developmental outcomes in children ages 0-8; universal/preventive and targeted strategies used in a variety of settings that have been effective with parents of young children and that support the identified knowledge, attitudes, and practices; and barriers to and facilitators for parents' use of practices that lead to healthy child outcomes as well as their participation in effective programs and services. …”

“…Problems with how the neurotransmitter glutamate functions in the brain have been linked to a wide variety of disorders, including schizophrenia, Alzheimer's, substance abuse, and traumatic brain injury. …”

“…Wicked Cool PHP contains a wide variety of scripts to process credit cards, check the validity of email addresses, template HTML, and serve dynamic images and text. …”

“…In this evocative work, Lydia Pyne explores how discussion about endlings-how we tell their histories-draws on deep traditions of storytelling across a variety of narrative types that go well beyond the science of these species' biology or their evolutionary history. …”

“…Engaging with recent debates about colonial history and heritage, this book combines a variety of sources, an interdisciplinary approach, and an international scope to produce a cultural history of European imperial architecture across borders…”

“…More specifically, their attempts to distinguish superstition and magic from science and religion in the New World significantly influenced the aforementioned chroniclers, who increasingly directed their insights away from the description of native peoples and toward a reflection on the nature of truth, rhetoric, and fiction in writing history.Due to a convergence of often contradictory information from a variety of sources—eyewitness accounts, historiography, imaginative literature, as well as broader philosophical and theological influences—categorizing historical texts from this period poses no easy task, but Beckjord sifts through the information in an effective, logical manner. …”

“…In Technology and Innovation for Sustainable Development, experts in the area provide a variety of insights about the technical transformation needed for sustainable development. …”

“…Coastal systems are unique environments that provide socioeconomic benefits via a variety of different functions. These functions are influenced by changing morphology, which results from erosion and sedimentation at different spatiotemporal scales, from both natural forcing and human interventions. …”

“…These case studies together illustrate the variety of innovative strategies research institutions have developed to engage with their researchers about managing research data. …”

“…This Special Issue of Biomolecules entitled “Redox imbalance and mitochondrial abnormalities in kidney disease” covers a variety of topics focusing on oxidative stress, mitochondrial dysfunction, and antioxidation enhancement implicated in kidney disease or kidney transplantation…”

“…Industry, academic, and government researchers are developing and validating analytical methods to extract, separate, identify, and quantitate a variety of analytes from these innovative tobacco products using a wide range of analytical techniques. …”

“…The authors analyze all of the spheres of sustainability (environmental, economic, and social) in a variety of contexts, evaluating the effect of the circular choices. …”

“…Flows of thermal origin and heat transfer problems are central in a variety of disciplines and industrial applications. …”