apply a function over a list or bundle

Source: R/blapply.R

Very similar to lapply, but applicable to bundle-objects, in particular. The purpose of the method is to supply a uniform und convenient parallel backend for the polmineR package. In particular, progress bars are supported (the naming of the method is derived from bla bla).

blapply(x, ...)

# S4 method for list
blapply(x, f, mc = TRUE, progress = TRUE, verbose = FALSE, ...)

# S4 method for vector
blapply(x, f, mc = FALSE, progress = TRUE, verbose = FALSE, ...)

# S4 method for bundle
blapply(x, f, mc = FALSE, progress = TRUE, verbose = FALSE, ...)

Arguments

x

a list or a bundle object
...

further parameters
f

a function that can be applied to each object contained in the bundle, note that it should swallow the parameters mc, verbose and progress (use ... to catch these params )
mc

logical, whether to use multicore - if TRUE, the number of cores will be taken from the polmineR-options
progress

logical, whether to display progress bar
verbose

logical, whether to print intermediate messages

Examples

use("polmineR")

#> ... activating corpus: GERMAPARLMINI (version: 0.0.1 | build date: 2019-02-23)
#> ... activating corpus: REUTERS
bt <- partition("GERMAPARLMINI", date = ".*", regex=TRUE)

#> ... get encoding: latin1
#> ... get cpos and strucs
speeches <- as.speeches(bt, s_attribute_date = "date", s_attribute_name = "speaker")

#> ... generating partitions by date
#> ... generating speeches
#> ... generating names
#> ... reordering partitions
#> ... coercing partitions to plpr_partitions
foo <- blapply(speeches, function(x, ...) slot(x, "cpos"))