Module: NumRuby

Defined in:
lib/numruby/numruby.rb,
ext/ruby_nmatrix.c

Defined Under Namespace

Modules: Lapack, Linalg

Class Method Summary collapse

Class Method Details

.append(a, b) ⇒ Object 



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# File 'lib/numruby/numruby.rb', line 28

def self.append(a, b)
  self.vstack([a,b])
end

.arange(len) ⇒ Object 



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# File 'lib/numruby/numruby.rb', line 14

def self.arange(len)
  elements = Array(0..len)
  NMatrix.new([len,1], elements, :nm_int)
end

.array(shape, elements, options = {}) ⇒ Object 



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# File 'lib/numruby/numruby.rb', line 3

def self.array(shape, elements, options = {})

  if(options[:dtype])
    dtype = options[:dtype]
  else
    dtype = :nm_float64
  end

  NMatrix.new(shape, elements, dtype)
end

.average ⇒ Object 



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# File 'ext/ruby_nmatrix.c', line 345

VALUE average_nmatrix(int argc, VALUE* argv);

.broadcast_to ⇒ Object

rb_define_singleton_method(NumRuby, "matrix", nmatrix_init, -1);



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# File 'ext/ruby_nmatrix.c', line 349

VALUE nm_broadcast_to(int argc, VALUE* argv);

.hstack(objs) ⇒ Object 



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# File 'lib/numruby/numruby.rb', line 49

def self.hstack(objs)
  return nil unless objs.is_a?(Array)
  rows = objs[0].shape[0]
  cols = objs[0].shape[1] * objs.length
  result = NumRuby.zeros([rows, cols])
  objs.each do |obj|
    #check num_rows mismatch
  end

  # (0..result.shape[1]).each do |col_index|
  #   result[col_index, *] = objs[x][col_index, *]
  #   index = (col_index == cols ? 0 : index + 1)
  # end
  result
end

.ones ⇒ Object 



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# File 'ext/ruby_nmatrix.c', line 348

VALUE ones_nmatrix(int argc, VALUE* argv);

.sin(obj) ⇒ Object

unary operations



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# File 'lib/numruby/numruby.rb', line 20

def self.sin(obj)
  if obj.is_a?(NMatrix)
    obj.sin()
  else
    Math.sin(obj)
  end
end

.vstack(objs) ⇒ Object 



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# File 'lib/numruby/numruby.rb', line 32

def self.vstack(objs)
  return nil unless objs.is_a?(Array)
  rows = objs[0].shape[0] * objs.length
  cols = objs[0].shape[1]
  result = NumRuby.zeros([rows, cols])
  objs.each do |obj|
    #check num_cols mismatch
    # (0..objs.shape[0]).each
  end

  # (0..result.shape[0]).each do |row_index|
  #   result[row_index, *] = objs[x][row_index, *]
  #   index = (row_index == rows ? 0 : index + 1)
  # end
  result
end

.zeros ⇒ Object 



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# File 'ext/ruby_nmatrix.c', line 347

VALUE zeros_nmatrix(int argc, VALUE* argv);