Created
November 18, 2014 01:46
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tbl_df drops?
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| > tbl_df(iris) %>% class() | |
| [1] "tbl_df" "tbl" "data.frame" | |
| > tbl_df(iris) %>% filter(Species == "setosa") %>% class() | |
| [1] "tbl_df" "tbl" "data.frame" | |
| > tbl_df(iris) %>% filter(Species == "setosa") %>% .[,"Species"] %>% class() | |
| [1] "factor" | |
| > tbl_df(iris) %>% filter(Species == "setosa") %>% .[,"Species"] %>% str() | |
| Factor w/ 3 levels "setosa","versicolor",..: 1 1 1 1 1 1 1 1 1 1 ... |
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I don't get the same results as you in the last two cases, which makes me think you should update
dplyr. In my hands, even the last two statements return something of classtbl_dfanddata.frame.