tidyr: Tidy Messy Data

作者：Hadley Wickham, Davis Vaughan, Maximilian Girlich · 年份：2014 · DOI：10.32614/cran.package.tidyr · 被引用次数：159 · 研究领域：Meteorological Phenomena and Simulations、Traffic Prediction and Management Techniques、Data Analysis with R

Tools to help to create tidy data, where each column is a variable, each row is an observation, and each cell contains a single value. 'tidyr' contains tools for changing the shape (pivoting) and hierarchy (nesting and 'unnesting') of a dataset, turning deeply nested lists into rectangular data frames ('rectangling'), and extracting values out of string columns. It also includes tools for working with missing values (both implicit and explicit).