Nova versão do dplyr – que, junto com o data.table – é uma das melhores interfaces para manipulação de dados no R. Nessa nova versão, destaco a possibilidade de trabalhar com listas dentro do summarise, para retornar mais de um valor!
I’m very pleased to announce that dplyr 0.4.0 is now available from CRAN. Get the latest version by running:
install.packages("dplyr")dplyr 0.4.0 includes over 80 minor improvements and bug fixes, which are described in detail in the release notes. Here I wanted to draw your attention to two areas that have particularly improved since dplyr 0.3, two-table verbs and data frame support.
Two table verbs
dplyr now has full support for all two-table verbs provided by SQL:
- Mutating joins, which add new variables to one table from matching rows in another:
inner_join(),left_join(),right_join(),full_join(). (Support for non-equi joins is planned for dplyr 0.5.0.) - Filtering joins, which filter observations from one table based on whether or not they match an observation in the other table:
semi_join(),anti_join(). - Set operations, which combine the observations in two data sets as if they were set elements:
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