Reshaping Data with thereshapePackage

Abstract

This paper presents the reshape package for R, which provides a common framework for many types of data reshaping and aggregation. It uses a paradigm of 'melting' and 'casting', where the data are 'melted' into a form which distinguishes measured and identifying variables, and then 'cast' into a new shape, whether it be a data frame, list, or high dimensional array. The paper includes an introduction to the conceptual framework, practical advice for melting and casting, and a case study.

Keywords

R packageCastingComputer scienceFrame (networking)Advice (programming)Melting temperatureData miningComputational scienceMaterials scienceProgramming languageMetallurgy

Related Publications

dendextend: an R package for visualizing, adjusting and comparing trees of hierarchical clustering

Tal Galili

Abstract Summary: dendextend is an R package for creating and comparing visually appealing tree diagrams. dendextend provides utility functions for manipulating dendrogram objec...

2015 Bioinformatics 1758 citations

Array programming with NumPy

Charles R. Harris , K. Jarrod Millman , Stéfan J. van der Walt +47 more

Array programming provides a powerful, compact and expressive syntax for accessing, manipulating and operating on data in vectors, matrices and higher-dimensional arrays. NumPy ...

2020 Nature 18941 citations

MCMC Methods for Multi-Response Generalized Linear Mixed Models: TheMCMCglmmRPackage

Jarrod D. Hadfield

Generalized linear mixed models provide a flexible framework for modeling a range of data, although with non-Gaussian response variables the likelihood cannot be obtained in clo...

2010 Journal of Statistical Software 4603 citations

Geodesic Active Regions for Texture Segmentation

Nikolaos Paragios , Rachid Deriche

This paper proposes a framework for segmenting different textured areas over synthetic or real textured frames by curves propagation. We assume that the system has the ability t...

1998 43 citations

ape 5.0: an environment for modern phylogenetics and evolutionary analyses in R

Emmanuel Paradis , Klaus Schliep

Abstract Summary After more than fifteen years of existence, the R package ape has continuously grown its contents, and has been used by a growing community of users. The releas...

2018 Bioinformatics 8399 citations

Publication Info

Year: 2007
Type: article
Volume: 21
Issue: 12
Citations: 2763
Access: Closed

External Links

View on DOI.org

Social Impact

Altmetric

Reshaping Data with thereshapePackage

PlumX Metrics

Social media, news, blog, policy document mentions

Citation Metrics

2763

OpenAlex

Cite This

APA Style

                            
                                    Hadley Wickham
                                
                            (2007). 
                            Reshaping Data with the<b>reshape</b>Package. 
                            Journal of Statistical Software
                            , 21
                            (12)
                            .
                            https://doi.org/10.18637/jss.v021.i12

Identifiers

DOI: 10.18637/jss.v021.i12