Parse a NumPy Array-protocol type strings

Usage

parse_npy_datatype(descr)

Arguments

descr: A NumPy dtype description string, or a list of such strings fo structured dtypes

Value

A list containing the parsed data type information, including the base type, the number of bytes, and the endianness

Examples

parse_npy_datatype(">i8")
#> $endian
#> [1] "big"
#> 
#> $base_type
#> [1] "int"
#> 
#> $nbytes
#> [1] 8
#> 
parse_npy_datatype("|b1")
#> $endian
#> [1] NA
#> 
#> $base_type
#> [1] "bool"
#> 
#> $nbytes
#> [1] 1
#> 
parse_npy_datatype(list(c("r", "<i8"), c("g", "<i8"), c("b", "<i8")))
#> [[1]]
#> [[1]][[1]]
#> [[1]][[1]]$endian
#> [1] "little"
#> 
#> [[1]][[1]]$base_type
#> [1] "int"
#> 
#> [[1]][[1]]$nbytes
#> [1] 8
#> 
#> 
#> [[1]][[2]]
#> [[1]][[2]]$endian
#> [1] "little"
#> 
#> [[1]][[2]]$base_type
#> [1] "int"
#> 
#> [[1]][[2]]$nbytes
#> [1] 8
#> 
#> 
#> [[1]][[3]]
#> [[1]][[3]]$endian
#> [1] "little"
#> 
#> [[1]][[3]]$base_type
#> [1] "int"
#> 
#> [[1]][[3]]$nbytes
#> [1] 8
#> 
#> 
#> 
#> $nbytes
#> [1] 8 8 8
#> 
#> $base_type
#> [1] "int" "int" "int"
#> 
#> $endian
#> [1] "little" "little" "little"
#>