Siddharth Chaini's Blog

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Posts

• Jul 15, 2021

  Piece-wise Functions on NumPy

  As part of my internship, I needed to implement the following piece-wise function (FILL).

  This can be done on numpy through something like this:

  def upperfn(time,a,beta,t0,t1,tfall,trise):
      val = (a*(1 - beta*(time-t0)/(t1-t0)))/(1+np.exp(-(time-t0)/trise))
      return val
  def lowerfn(time,a,beta,t0,t1,tfall,trise):
      val = (a*(1-beta)*np.exp(-(time-t1)/tfall))/(1+np.exp(-(time-t0)/trise))
      return val
  def alercev1(time,a,beta,t0,gamma,tfall,trise):
      t1 = t0 + gamma
      val = np.piecewise(time, [time < t1, time >= t1], [lambda time: upperfn(time,a,beta,t0,t1,tfall,trise), lambda time: lowerfn(time,a,beta,t0,t1,tfall,trise)])
      return val
  

• May 26, 2021

  My Bloggg

  This is an example of a blog post! Text goes here.

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