Reshaping data with the reshape package
- Reshaping data with the reshape package.
- Journal of Statistical Software, vol. 21, no. 12, pp. 1––20, 2007.
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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.
@Article{reshape,
author = {Hadley Wickham},
journal = {Journal of Statistical Software},
keywords = {reshape},
number = {12},
pages = {1––20},
title = {Reshaping data with the reshape package},
url = {http://www.jstatsoft.org/v21/i12},
volume = {21},
year = {2007},
bdsk-url-1 = {http://www.jstatsoft.org/v21/i12},
}