View source: R/pair_blocking.R
pair_blocking | R Documentation |
Generates all combinations of records from x
and y
where the
blocking variables are equal.
pair_blocking(x, y, blocking_var = NULL, large = TRUE, add_xy = TRUE, chunk_size = 1e+07)
x |
first |
y |
second |
blocking_var |
the variables defining the blocks or strata for which
all pairs of |
large |
should the pairs be returned as a |
add_xy |
add |
chunk_size |
used when |
Generating (all) pairs of the records of two data sets, is usually the first step when linking the two data sets. However, this often results in a too large number of records. Therefore, blocking is usually applied.
When large
is FALSE
, a data.frame
with two columns,
x
and y
, is returned. Columns x
and y
are
row numbers from data.frame
s x
and y
respectively.
When large
is TRUE
, an object of type ldat
is returned.
data("linkexample1", "linkexample2") pairs <- pair_blocking(linkexample1, linkexample2, "postcode")
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