and distance. Both have size n X nrow(x). Each ith column
corresponds to the top-n best matches of x with rows in y.
When there are no columns to compare, a message is printed and both
distance and index will be empty matrices; the list is
then returned invisibly.
Arguments
x
[data.frame]
y
[data.frame]
pair_x
[numeric|character] (optional) Columns in x used for comparison.
See Details below.
pair_y
[numeric|character] (optional) Columns in y used for comparison.
See Details below.
n
The top-n indices and distances to return.
eps
[numeric] (optional) Computed numbers (variable ranges)
smaller than eps are treated as zero.
weights
[numeric] (optional) A vector of weights of length ncol(x)
that defines the weight applied to each component of the gower distance.
ignore_case
[logical] Toggle ignore case when neither pair_x
nor pair_y are user-defined.
nthread
Number of threads to use for parallelization. By default,
for a dual-core machine, 2 threads are used. For any other machine
n-1 cores are used so your machine doesn't freeze during a big computation.
The maximum nr of threads are determined using omp_get_max_threads at C level.