Problem with custom Indicator

[konny]

Hi guys,

I'm trying to implement a indicator:

class IFT(bt.Indicator):

  lines = ('ift',)
  plotlines = dict(ift=dict(color='black', ls='-', linewidth=1.5))

  def init(self):

     v = 0.1 * self.data
     self.l.ift = 100 * (np.exp(v) - 1) / (np.exp(v) + 1)


class testStrategy(bt.Strategy):

  self.IFT = IFT(self.data)

TypeError: 'numpy.ndarray' object is not callable

Help will be appreciated.

Thanks

[ab_trader]

np.exp requires array as an argument and v is not an array.

[konny]

Hi ab_trader,

many thanks for the answer
can you tell me how i convert self.data into array?

Thanks