class_docstr: made up, with sin and quadratic trend
class_docstr_tok: ["made","up",",","with","sin","and","quadratic","trend"]
code: def __init__(self, nobs=200, x=None, distr_x=None, distr_noise=None):
      if x is None and distr_x is None:
          from scipy import stats
  
          distr_x = stats.uniform(-2, 4)
      else:
          nobs = x.shape[0]
      self.s_noise = 2.0
      self.func = func1
      super().__init__(
          nobs=nobs, x=x, distr_x=distr_x, distr_noise=distr_noise
      )
  
imports: import numpy
label_desc: Use image node_id 1 to create a new UnivariateFunc1 object from inherited base classes: _UnivariateFunction with example: obj = UnivariateFunc1(nobs, x, distr_x, distr_noise)