docstr: tiny is a numerical constant for computations.
          
docstr_tok: ["tiny","is","a","numerical","constant","for","computations","."]
code: def __init__(self, dim, type="t", tiny=DEF_TINY, dofmax=DEF_DOFMAX):
      """tiny is a numerical constant for computations."""
      self.dim = dim
      self.effect = None
      self.variance = None
      self.dof = None
      if dim > 1:
          if type == "t":
              type = "F"
      self.type = type
      self._stat = None
      self._pvalue = None
      self._baseline = 0
      self._tiny = tiny
      self._dofmax = dofmax
  
imports: import numpy
  import scipy.stats
  from nipy.algorithms.statistics.utils import z_score
  from ..utils import mahalanobis
  from .None import kalman
label_desc: Use image node_id 1 to create a new contrast object  with example: obj = contrast(dim, type, tiny, dofmax)