dapply: Matrix like apply function for disto object
In disto: Unified Interface to Distance, Dissimilarity, Similarity Matrices

Apply function for data underlying disto object

1	dapply(x, margin = 1, fun, subset, nproc = 1)

`x`	disto object
`margin`	(one among 1 or 2) dimension to apply function along
`fun`	Function to apply over the margin
`subset`	(integer vector) Row/Column numbers along the margin
`nproc`	Number of parallel processes (unix only)

Simplified output of 'sapply' like function temp <- dist(iris[,1:4]) dio <- disto(objectname = "temp")

# function to pick indexes of 5 nearest neighbors # an efficient alternative with Rcpp is required udf <- function(x) dim(x) <- NULL order(x)[1:6] hi <- dapply(dio, 1, udf)[-1, ] dim(hi)

disto documentation built on May 2, 2019, 4:06 p.m.