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R: tidyverse: how to change the datatype of a column using least charset channels

Pipes and tidyverse are sometimes very handy. The user wants to convert one column from one type to another.

Same:

mtcars$qsec <-as.integer(mtcars$qsec)

This requires entering twice what I need. Please do not suggest the "c" command, as I find it confusing.

What would be the tidvern and magrittr% <>% way to do the same with the least amount of input? Also, if qsec is the 6th column, how can I do this by simply referencing the column position. Something like (not correct code)

mtcars %<>% mutate(as.integer,qsec)
mtcars %<>% mutate(as.integer,[[6]])
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1 answer


When entering a column reference only once - the answer is

mtcars %<>% mutate_at(6, as.integer)

To refer to a column by name, a solution with one redundant column name type



mtcars %<>% mutate(qsec = as.integer(qsec))

NOTE: credit goes to users comment above

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