Sets a tiledb array value or value range — [<-,tiledb

This function assigns a right-hand side object, typically a data.frame or something that can be coerced to a data.frame, to a tiledb array.

Usage

# S4 method for tiledb_array,ANY,ANY,ANY
[(x, i, j, ...) <- value

Arguments

x: sparse or dense TileDB array object
i: parameter row index
j: parameter column index
...: Extra parameter for method signature, currently unused.
value: The value being assigned

Value

The modified object

Details

For sparse matrices, row and column indices can either be supplied as part of the left-hand side object, or as part of the data.frame provided approrpiate column names.

This function may still still change; the current implementation should be considered as an initial draft.

Examples

ctx <- tiledb_ctx(limitTileDBCores())
if (FALSE) {
uri <- "quickstart_sparse"      ## as created by the other example
arr <- tiledb_array(uri)        ## open array
df <- arr[]                     ## read current content
## First approach: matching data.frame with appriate row and column
newdf <- data.frame(rows=c(1,2,2), cols=c(1,3,4), a=df$a+100)
## Second approach: supply indices explicitly
arr[c(1,2), c(1,3)] <- c(42,43) ## two values
arr[2, 4] <- 88                 ## or just one
}