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rlistdataframerow

How to select row from a list of dataframes in R

I have list of 10 dataframes and I want to select one row of each datafram by name. The name of the column is name. And I want to select each row in which name=Ready.

I tried some approaches. This works, if I state the exact row number (here 2):

lapply(list, `[` ,c(2),)

But as the row number is different in the dataframes I would apply somehting like name=Ready:

lapply(list, `[` ,c(Ready),)
Solution

  • You can use lapply as -

    lapply(list, function(x) x[x$name == 'Ready', ])

    couple of other alternatives which would give the same result

    lapply(list, subset, name == 'Ready')

#tidyverse
library(dplyr)
library(purrr)

map(list, ~.x %>% filter(name == 'Ready'))