lbl

A python library for reading/writing and manipulating lbl files. Lbl files are represented within python as a numpy record array with fields 'name', 'start', and 'stop'. This format is useful for writing data to the arf file format.

Typical usage:

import lbl
lbldata = lbl.read('this/is/a_lbl_file.lbl')        #  returns a rec array
abcd_intervals = lbl.find_seq(lbldata, 'abcd')  #  returns a list of time intervals

What are lbl files?

The lbl standard uses the following format:

• 7 lines of garbage (the header)

After the header, each line represents an entry with space separated elements.

• The first element is a floating point time stamp
• the second element is garbage (the number 121)
• the third element is the label or name.

Label conventions

Labels can be strings of any length. If a label has both a start and a stop time, the start label is an entry with '-0' appended to it, while the stop label has '-1' appended.

Example lbl file

signal feasd
type 0
color 121
font *-fixed-bold-*-*-*-15-*-*-*-*-*-*-*
separator ;
nfields 1
#
   15.445851  121 A
   15.520200  121 a-0
   15.595700  121 a-1
   15.747526  121 a-0
   15.818300  121 a-1
   15.928394  121 a-0
   15.991940  121 a-1
   16.053200  121 b-0
   16.192361  121 b-1
   16.230769  121 c-0
   16.350176  121 c-1
   16.395300  121 d-0
   16.740300  121 d-1
   16.847382  121 V
   17.010093  121 C

Requirements

• numpy

Installation

git clone https://github.com/kylerbrown/lbl.git
cd lbl
python setup.py install