code: def __init__(self):
      self.mSignalFrame = pd.DataFrame()
      self.mTimeInfo = tsti.cTimeInfo()
      self.mTrendFrame = pd.DataFrame()
  
imports: import pandas
  import numpy
  from .None import Time
  from .None import Perf
  from .None import Plots
  from .None import Utils
  import sklearn
  import sklearn.preprocessing
  import sklearn.linear_model
  from sklearn.feature_selection import RFE
  from sklearn.linear_model import LinearRegression
label_desc: Use image node_id 1 to create a new cTrendEstimator object  with example: obj = cTrendEstimator()