src/nupic/algorithms/fdrutilities.py
def addNoise(input, noise=0.1, doForeground=True, doBackground=True):
  """
  Add noise to the given input.

  Parameters:
  -----------------------------------------------
  input:         the input to add noise to
  noise:         how much noise to add
  doForeground:  If true, turn off some of the 1 bits in the input
  doBackground:  If true, turn on some of the 0 bits in the input

  """
  if doForeground and doBackground:
    return numpy.abs(input -  (numpy.random.random(input.shape) < noise))
  else:
    if doForeground:
      return numpy.logical_and(input, numpy.random.random(input.shape) > noise)
    if doBackground:
      return numpy.logical_or(input, numpy.random.random(input.shape) < noise)
  return input
def addNoise(input, noise=0.1, doForeground=True, doBackground=True):
  """
  Add noise to the given input.

  Parameters:
  -----------------------------------------------
  input:         the input to add noise to
  noise:         how much noise to add
  doForeground:  If true, turn off some of the 1 bits in the input
  doBackground:  If true, turn on some of the 0 bits in the input

  """
  if doForeground and doBackground:
    return numpy.abs(input -  (numpy.random.random(input.shape) < noise))
  else:
    if doForeground:
      return numpy.logical_and(input, numpy.random.random(input.shape) > noise)
    if doBackground:
      return numpy.logical_or(input, numpy.random.random(input.shape) < noise)
  return input
def addNoise ( input , noise = 0.1 , doForeground = True , doBackground = True ) : if doForeground and doBackground : return numpy . abs ( input - ( numpy . random . random ( input . shape ) < noise ) ) else : if doForeground : return numpy . logical_and ( input , numpy . random . random ( input . shape ) > noise ) if doBackground : return numpy . logical_or ( input , numpy . random . random ( input . shape ) < noise ) return input
Add noise to the given input.

  Parameters:
  -----------------------------------------------
  input:         the input to add noise to
  noise:         how much noise to add
  doForeground:  If true, turn off some of the 1 bits in the input
  doBackground:  If true, turn on some of the 0 bits in the input
Add noise to the given input .