deletions | additions       diff --git a/smFRET data analysis.tex b/smFRET data analysis.tex  index 023944a..5d84ce2 100644  --- a/smFRET data analysis.tex  +++ b/smFRET data analysis.tex 
...
(table~\ref{tab:ph_sel_alex}).  The \verb|Ph_sel| class allows to express any combination of photon streams.   For example, in ALEX measurements, the D-emission during A-excitation stream is usually excluded because it does not contain any useful signal\cite{Lee_2005}. To indicate all but the photons in this photon stream we write \verb|Ph_sel(Dex='DAem', Aex='Aem')|, that litteraly means \textit{select donor and acceptor photons during (DAem)during  donor excitation (Dex)  and only acceptor photons (Aem)  during acceptor excitation}. excitation (Aex)}.  \begin{table}  \begin{tabular}{l|l}