Name
SPVM::R::NDArray::Int - N-Dimensional Array of int Type.
Description
R::NDArray::Int class in SPVM represents n-dimensional array of int type.
Usage
use R::NDArray::Int;
my $ndarray = R::NDArray::Int->new({data => [(int)1, 2, 3, 4, 5, 6], dim => [3, 2]});Super Class
Field
data
method data : int[] ();
Same as R::NDArray#data method, but the return type is different.
Class Methods
new
static method new : R::NDArray::Int ($options : object[] = undef);
Creates a new R::NDArray::Int given the options $options and returns it.
This method calls R::NDArray#init method given the options $options.
Instance Methods
create_default_data
method create_default_data : int[] ($length : int = 0);
Creates a default data given the length $length and returns it.
The default data is created by the following code.
my $default_data = new int[$length];Exceptions:
The length $length must be more than or equal to 0. Otherwise an exception is thrown.
elem_to_string
method elem_to_string : string ($data : int[], $data_index : int);
Converts an element $data at index $data_index to a string and returns it.
The string is created by the following code.
my $string = (string)$data->[$data_index];elem_assign
method elem_assign : void ($dist_data : int[], $dist_data_index : int, $src_data : int[], $src_data_index : int);
Assigns the element $src_data at index $src_data_index to the element $dist_data at index $dist_data_index.
elem_clone
method elem_clone : void ($dist_data : int[], $dist_data_index : int, $src_data : int[], $src_data_index : int);
Same as "elem_assign" method.
elem_cmp
method elem_cmp : int ($a_data : int[], $a_data_index : int, $a_data : int[], $b_data_index : int);
Compares the element $a_data at index $a_data_index and the element $b_data at index $b_data_index using the comparison operator <=> and returns the result.
elem_is_na
method elem_is_na : int ($data : byte[], $data_index : int);
Checks if an element represets NA.
Always returns 0.
clone
method clone : R::NDArray::Int ($shallow : int = 0);
Same as R::NDArray#clone method, but the return type is different.
slice
method slice : R::NDArray::Int ($indexes_product : R::NDArray::Int[]);
Same as R::NDArray#slice method, but the return type is different.
to_byte_ndarray
method to_byte_ndarray : R::NDArray::Byte ();
Converts this n-dimensional array to a n-dimensional array of R::NDArray::Byte and returns it.
Each element is converted by the following code.
my $ret_elem = (byte)$elem;to_short_ndarray
method to_short_ndarray : R::NDArray::Short ();
Converts this n-dimensional array to a n-dimensional array of R::NDArray::Short and returns it.
Each element is converted by the following code.
my $ret_elem = (short)$elem;to_long_ndarray
method to_long_ndarray : R::NDArray::Long ();
Converts this n-dimensional array to a n-dimensional array of R::NDArray::Long and returns it.
Each element is converted by the following code.
my $ret_elem = (long)$elem;to_float_ndarray
method to_float_ndarray : R::NDArray::Float ();
Converts this n-dimensional array to a n-dimensional array of R::NDArray::Float and returns it.
Each element is converted by the following code.
my $ret_elem = (float)$elem;to_double_ndarray
method to_double_ndarray : R::NDArray::Double ();
Converts this n-dimensional array to a n-dimensional array of R::NDArray::Double and returns it.
Each element is converted by the following code.
my $ret_elem = (double)$elem;to_indexes
method to_indexes : R::NDArray::Int ();
Creates a list of indexes whose elements are true values, convert it to an N-dimensional array that is a vector, and return it.
For example, [0, 1, 0, 1, 1] is converted to [1, 3, 4].
Exceptions:
This n-dimensional array must be a vector. Otherwise an exception is thrown.
See Also
Copyright & License
Copyright (c) 2024 Yuki Kimoto
MIT License