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Romain François
March 18, 2019
Programming
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260
dance
dancing with the tidyverse team
Romain François
March 18, 2019
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Transcript
https://github.com/romainfrancois/dance Rom ain François @romain_francois tidyverse team m eeting -
2019/03/18
choreography()
ballet() ptypes, NULL means vec_c() does its thing Setosa Versicolor
Virginica Results of the choreography for each group
summarise() polka(), waltz(), tango()
waltz(), polka(), tango() Peeled off grouping structure Just the new
variables, each choreography() result must respect vec_size() == 1 Both : this is close to what summarise() does
tango() packing Auto splice
salsa()
mutate() chacha(), salsa(), samba()
samba()
?? foxtrot(), bachata(), jive()
foxtrot() dplyr::group_map()
bachata() summarise() + map()
jive() group_modify()
*_all(), *_if(), *_at() swing(), twist() rumba(), zumba()
tango(swing()) summarise_at()
tango(name =twist()) summarise_at() + ???
tango(rumba()) summarise_at() + ???
tango(name = zumba()) summarise_at() + ???
dance not so serious reinvention of dplyr core verbs https://github.com/romainfrancois/dance