Name

SPVM::R::NDArray::Time::Piece - N-Dimensional Array of Time::Piece Type.

Description

R::NDArray::Time::Piece class in SPVM represents n-dimensional array of Time::Piece type.

Usage

  use R::NDArray::Time::Piece;
  
  my $data = [
    Time::Piece->strptime("2024-01-01 00-00-00", '%Y-%m-%d %H:%M:%S'),
    Time::Piece->strptime("2024-01-02 00-00-00", '%Y-%m-%d %H:%M:%S'),
    Time::Piece->strptime("2024-01-03 00-00-00", '%Y-%m-%d %H:%M:%S'),
    Time::Piece->strptime("2024-01-04 00-00-00", '%Y-%m-%d %H:%M:%S'),
    Time::Piece->strptime("2024-01-05 00-00-00", '%Y-%m-%d %H:%M:%S'),
    Time::Piece->strptime("2024-01-06 00-00-00", '%Y-%m-%d %H:%M:%S'),
  ];
  
  my $ndarray = R::NDArray::Time::Piece->new({data => $data, dim => [3, 2]});

Super Class

R::NDArray

Field

data

method data : Time::Piece[] ();

Same as R::NDArray#data method, but the return type is different.

Class Methods

new

static method new : R::NDArray::Time::Piece ($options : object[] = undef);

Creates a new R::NDArray::Time::Piece 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 : Time::Piece[] ($length : int = 0);

Creates a default data given the length $length and returns it.

The default data is created by the following code.

  my $default_data = new Time::Piece[$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 : Time::Piece[], $data_index : int);

Converts an element $data at index $data_index to a string and returns it.

  my $string = (string)undef;
  if ($data->[$data_index]) {
    $string = $data->[$data_index]->strftime("%Y-%m-%d %H:%M:%S");
  }

elem_assign

method elem_assign : void ($dist_data : Time::Piece[], $dist_data_index : int, $src_data : Time::Piece[], $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 : Time::Piece[], $dist_data_index : int, $src_data : Time::Piece[], $src_data_index : int);

Clones the element $src_data at index $src_data_indext to the element $dist_data at index $dist_data_index.

The clone is created by the following code.

  $dist_data->[$dist_data_index] = (Time::Piece)undef;
  if ($src_data->[$src_data_index]) {
    $dist_data->[$dist_data_index] = $src_data->[$src_data_index]->clone;
  }

elem_cmp

method elem_cmp : int ($a_data : Time::Piece[], $a_data_index : int, $b_data : Time::Piece[], $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 following comparison code and returns the result.

  my $cmp = 0;
  if ($a_data->[$a_data_index] && $b_data->[$b_data_index]) {
    my $a_epoch = $a_data->[$a_data_index]->epoch;
    
    my $b_epoch = $b_data->[$b_data_index]->epoch;
    
    $cmp = $a_epoch <=> $b_epoch;
  }
  elsif ($a_data->[$a_data_index]) {
    $cmp = 1;
  }
  elsif ($b_data->[$b_data_index]) {
    $cmp = -1;
  }

clone

method clone : R::NDArray::Time::Piece ($shallow : int = 0);

Same as R::NDArray#clone method, but the return type is different.

slice

method slice : R::NDArray::Time::Piece ($indexes_product : R::NDArray::Int[]);

Same as R::NDArray#slice method, but the return type is different.

See Also

• R::OP::Time::Piece

• R::NDArray

• R

Copyright & License

Copyright (c) 2024 Yuki Kimoto

MIT License

cpanm SPVM::R

perl -MCPAN -e shell
install SPVM::R