Description
Recombinate Nested Lists to Dataframes.
Description
Turns nested lists into data.frames in an orderly manner.
README.md
R recombinators
An R utility for turning nested lists into data.frames. This can be useful for turning JSON into R lists, and then into data.frames.
Installation
The latest stable build can be downloaded from CRAN:
install.packages("recombinator")
To install the latest development builds directly from GitHub, run this instead:
if (!require("devtools")) install.packages("devtools")
devtools::install_github("robertzk/recombinator")
Usage
There are two supported formats.
- Homogeneous lists. A list where the first list element is a character vector giving the names of the data.frame, and the subsequent list elements themselves lists of values.
- Heterogeneous lists. A list where each element is a named list of values. In this format,
plyr::rbind
will be used to take the union of all names and impute the ones missing with NA values.
Here are two examples of the respective format:
recombinator(list(c("a","b","c"), list(1, F, 2), list(2, T, 3)))
# a b c
# 1 1 FALSE 2
# 2 2 TRUE 3
recombinator(list(c("a","b","c"), list(1, F, 2), list(2, T, 3)))
# recombinator(list(list(a = 1, b = F, c = 2), list(a = 2, b = T, c = 3)))
# a b c
# 1 1 FALSE 2
# 2 2 TRUE 3
# The union of all observed keys is used for column names.
recombinator(list(list(a = 1, b = F, c = 2), list(a = 2, b = T, d = 4)))
# a b c d
# 1 1 FALSE 2 NA
# 2 2 TRUE NA 4