deletions | additions       diff --git a/Timestamps_and_burst_data.tex b/Timestamps_and_burst_data.tex  index 9847d64..bffdbe1 100644  --- a/Timestamps_and_burst_data.tex  +++ b/Timestamps_and_burst_data.tex 
...
Beyond providing prepackaged functions for established methods,   FRETBursts also provides the infrastructure for exploring new analysis approaches.  Users can easily get timestamps (or selection masks) for any photon stream.  Core burst data (essentially start and stop times and times,  indexes and derived quantities for each burst) are stored in a \verb|Bursts| object   (\href{http://fretbursts.readthedocs.org/en/latest/burstsearch.html}{documentation}). (\href{http://fretbursts.readthedocs.org/en/latest/burstsearch.html}{link}).  This object provides a simple and well tested interface (100 \% test unit-test  coverage) to access and manipulate burst data. \verb|Bursts| are created from a sequence of start/stop   times and indexes, while all the other fields are automatically  computed. \verb|Bursts|'s methods allow to recompute indexes relative to a different photon  selection or recompute start and stop times relative to a new timestamps array.  Additional methods perform fusion of nearby bursts or combination of two set of bursts   (time intersection or union). This functionality is used fr for  example to implement the dual-channel burst search).  In conclusion, \verb|Bursts| efficiently implements all the common operations performed   with burst data, providing and easy-to-use interface and well tested algorithms.   Leveraging \verb|Bursts| methods, users can implement new types of analysis without   wasting time implementing (and debugging) standard manipulation routines.  Examples of working directly with timestamps, masks (i.e. photon selections) and   burst data are provided in one of the FRETBursts notebooks (\href{http://nbviewer.jupyter.org/github/tritemio/FRETBursts_notebooks/blob/master/notebooks/Example%20-%20Working%20with%20timestamps%20and%20bursts.ipynb}{link}). Section~\ref{sec:bva} provides a complete example on using FRETBurts to implement   custom burst analsysis techniques.  \paragraph{Python details}  Timestamps are stored in the \verb|Data| attribute \verb|ph_times_m|, which is a list  or arrays, one array per excitation spot. In single-spot measurements the full  timestamps array is accessed as \verb|Data.ph_times_m[0]|. To get timestamps  of arbitrary photon streams, users can use the method \verb|Data.get_ph_times|  (\href{http://fretbursts.readthedocs.org/en/latest/data_class.html?highlight=get_ph_times#fretbursts.burstlib.Data.get_ph_times}{link}).  Photon streams are selected from the full (all-photon) timestamps array using  boolean masks. The masks can be obtained using the method \verb|Data.get_ph_mask|  (\href{http://fretbursts.readthedocs.org/en/latest/data_class.html?highlight=get_ph_mask#fretbursts.burstlib.Data.get_ph_mask}{link}).  \verb|Bursts| objects (\href{http://fretbursts.readthedocs.org/en/latest/burstsearch.html}{link})  internally store the start and stop times and indexes in a numpy array. The other fields are computed on-fly using class properties, so they are always  up to date even if start and stop are modified. Iteration over bursts \verb|Bursts|  is relatively fast, with performances similar to iterating through numpy rows.