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dplyr is an R package whose set of functions are designed to enable dataframe (a spreadsheet-like data structure) manipulation in an intuitive, user-friendly way. It is one of the core packages of the popular tidyverse set of packages in the R programming language. [1]
The group of packages strives to provide a cohesive collection of functions to deal with common data science tasks, including data import, cleaning, transformation and visualisation (notably with the ggplot2 package). The R Infrastructure packages [31] support coding and the development of R packages and as of 2021-05-04, Metacran [17] lists 16 ...
Characteristic features of tidyverse packages include extensive use of non-standard evaluation and encouraging piping. [3] [4] [5] As of November 2018, the tidyverse package and some of its individual packages comprise 5 out of the top 10 most downloaded R packages. [6] The tidyverse is the subject of multiple books and papers.
R is a programming language for statistical computing and data visualization. It has been adopted in the fields of data mining, bioinformatics and data analysis. [9] The core R language is augmented by a large number of extension packages, containing reusable code, documentation, and sample data. R software is open-source and free software.
Lake Buchanan, the largest of the Texas Highland Lakes. The Texas Highland Lakes are a chain of fresh water reservoirs in Central Texas formed by dams on the lower Colorado River. [1] The Texas Colorado River winds southeast from West Texas to Matagorda Bay and the Gulf of Mexico. The lower Colorado River basin has a history of major flooding.
Lake Travis is a popular fishing destination for anglers in Texas not only because of its stocked inventory but because of the convenient boating services and marinas in the area such as VIP Lake Travis Marina. In spring 2008 there were several reports of leeches residing in Lake Travis. The leeches are generally harmless to humans but can be a ...
The reservoir encompasses a surface area of more than 23,500 acres and 225 miles (362 km) of shoreline. The area consists of rolling, tallgrass prairies; cedar trees; hardwood timber; and 100 ft (30 m) bluffs and rock points. Lake Whitney is also part of the Texas Lakes Trail Region of North Texas.
The nearly 8100 major dams in the United States in 2006. The National Inventory of Dams defines a major dam as being 50 feet (15 m) tall with a storage capacity of at least 5,000 acre-feet (6,200,000 m 3), or of any height with a storage capacity of 25,000 acre-feet (31,000,000 m 3).