class_docstr: Storage in a text file.
  
  Stores previously drawn points above some likelihood contour,
  so that they can be reused in another run.
  
  The format is a tab separated text file.
  Through the fmt and delimiter attributes the output can be altered.
class_docstr_tok: ["Storage","in","a","text","file",".","Stores","previously","drawn","points","above","some","likelihood","contour",",","so","that","they","can","be","reused","in","another","run",".","The","format","is","a","tab","separated","text","file",".","Through","the","fmt","and","delimiter","attributes","the","output","can","be","altered","."]
docstr: Load and append to storage at *filepath*.
  
  The file should contain *ncols* columns (Lmin, L, and others).
docstr_tok: ["Load","and","append","to","storage","at","*","filepath","*",".","The","file","should","contain","*","ncols","*","columns","(","Lmin",",","L",",","and","others",")","."]
code: def __init__(self, filepath, ncols):
      """Load and append to storage at *filepath*.
  
      The file should contain *ncols* columns (Lmin, L, and others).
      """
      self.ncols = int(ncols)
      self.nrows = 0
      self.stack_empty = True
      self._load(filepath)
      self.fileobj = open(filepath, "ab")
      self.fmt = "%.18e"
      self.delimiter = "\t"
  
imports: from __future__ import print_function, division
  import numpy
  import warnings
  import os
label_desc: Use image node_id 1 to create a new TextPointStore object from inherited base classes: FilePointStore with example: obj = TextPointStore(filepath, ncols)