Factory function to create a SOMA dense ND array for writing (lifecycle: maturing).
Usage
SOMADenseNDArrayCreate(
uri,
type,
shape,
platform_config = NULL,
tiledbsoma_ctx = NULL,
tiledb_timestamp = NULL
)Arguments
- uri
URI for the TileDB object.
- type
An Arrow type defining the type of each element in the array.
- shape
A vector of integers defining the shape of the array.
- platform_config
Optional platform configuration.
- tiledbsoma_ctx
Optional SOMATileDBContext.
- tiledb_timestamp
Optional Datetime (POSIXct) for TileDB timestamp.
Value
A new SOMA dense ND array
stored at uri opened for writing.
Examples
uri <- withr::local_tempfile(pattern = "soma-dense-array")
mat <- matrix(stats::rnorm(100L ^ 2L), nrow = 100L, ncol = 100L)
mat[1:3, 1:5]
#> [,1] [,2] [,3] [,4] [,5]
#> [1,] 0.03052902 -1.2368860 -0.6614749 0.5568221 0.1034234
#> [2,] -0.04787012 -0.5746649 -1.2197908 0.5519798 0.1276377
#> [3,] 1.59039312 0.1616978 -0.4527197 0.6139520 2.0793888
(arr <- SOMADenseNDArrayCreate(uri, arrow::float64(), shape = dim(mat)))
#> <SOMADenseNDArray>
#> uri: /tmp/RtmpjD0Pq2/soma-dense-array27096896e0fe
#> dimensions: soma_dim_0, soma_dim_1
#> attributes: soma_data
arr$write(mat)
arr$close()
(arr <- SOMADenseNDArrayOpen(uri))
#> <SOMADenseNDArray>
#> uri: /tmp/RtmpjD0Pq2/soma-dense-array27096896e0fe
#> dimensions: soma_dim_0, soma_dim_1
#> attributes: soma_data
arr$read_arrow_table()
#> Table
#> 10000 rows x 1 columns
#> $soma_data <double not null>