R functions to split concatenated data, stack columns of your datasets, and convert your data into different shapes.
cSplit: A core function that collects the functionality
of several of the concat.split family of functions.concat.split: A set of functions to split strings where
data have been concatenated into a single value, as is common when
getting data collected with tools like Google Forms.
(cSplit_l to return a list; and
cSplit_e to return an “expanded” view of the input
data.)Stacked: A function to create a list of
stacked sets of variables. Similar to melt
from “reshape2”, but doesn’t put everything into one very long
data.frame.Reshape: A function to allow base R’s
reshape function to work with “unbalanced” datasets.stratified: A function to take random row samples by
groups, similar to sample_n and sample_frac
from “dplyr”.getanID: A function for creating a secondary ID when
duplicated “id” variables are present.expandRows: “Expands” the rows of a dataset.listCol_l and listCol_w: Unlists (long) or
flattens (wide) a column in a data.frame or a
data.table stored as a list. Neither is
vectorized.The package is on CRAN. You can install it using:
install.packages("splitstackshape")To install the V2 beta version, use:
devtools::install_github("mrdwab/splitstackshape", ref = "v2.0")To install the V1 development version, use:
devtools::install_github("mrdwab/splitstackshape", ref = "v1_development")Current CRAN version: 1.4.8