Fix drop example
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@ -138,7 +138,7 @@ df2[, "x"]
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One way to avoid this ambiguity with `data.frame`s is to explicitly specify `drop = FALSE`:
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One way to avoid this ambiguity with `data.frame`s is to explicitly specify `drop = FALSE`:
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```{r}
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```{r}
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df1["x", , drop = FALSE]
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df1[, "x", drop = FALSE]
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```
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```
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### dplyr equivalents
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### dplyr equivalents
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