2015年2月11日
The dplyr package has been updated with new data manipulation commands for filters, joins and set operations.（转）
摘要： dplyr 0.4.0January 9, 2015 inUncategorizedI’m very pleased to announce that dplyr 0.4.0 is now available from CRAN. Get the latest version by running:... 阅读全文
posted @ 2015-02-11 10:13 payton数据之旅 阅读(388) 评论(0) 推荐(0) 编辑