Grouping functions (tapply, by, aggregate) and the *apply family Grouping functions (tapply, by, aggregate) and the *apply family r r
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Grouping functions (tapply, by, aggregate) and the *apply family
r
lapply
sapply
tapply
r-faq
lien
r
Apply a function to every row of a matrix or a data frame
r
function
matrix
apply
sapply
lien
r
Concatenate row-wise across specific columns of dataframe
r
apply
paste
string-concatenation
sapply
lien
r
How to subset from a list in R
r
list
sapply
lien
r
Apply a function to each row in a data frame in R [duplicate]
r
dataframe
sapply
lien
r
Extract second subelement of every element in a list while ignoring NA's in sapply in R
r
list
apply
na
sapply
lien
r
Using "..." and "replicate"
r
ellipsis
replicate
sapply
lien
r
How to pass na.rm=TRUE to sapply when calculating median?
r
na
sapply
na.rm
lien
r
Convert a list of lists to a character vector
r
string
list
character
sapply
lien
r
Dollar operator as function argument for sapply not working as expected
r
lapply
sapply
dollar-sign
lien
r
Viewing all column names with any NA in R
r
sapply
lien
r
Repeating a user-defined function using replicate() or sapply()
r
sapply
replicate
lien
r
R: loop over columns in data.table
r
data.table
sapply
lien
r
Create frequency tables for multiple factor columns in R
r
r-factor
sapply
lien
r
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