location: Print the location in memory of a data frame
In sctyner/dplyr050: A Grammar of Data Manipulation

This is useful for understand how and when dplyr makes copies of data frames

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location(df)

changes(x, y)

`df`	a data frame
`x, y`	two data frames to compare

location(mtcars)

mtcars2 <- mutate(mtcars, cyl2 = cyl * 2)
location(mtcars2)

changes(mtcars, mtcars)
changes(mtcars, mtcars2)

sctyner/dplyr050 documentation built on May 17, 2019, 2:22 p.m.

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