deletions | additions       diff --git a/dataload.tex b/dataload.tex  index ae7b057..87ff644 100644  --- a/dataload.tex  +++ b/dataload.tex 
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where \verb|D_ON| and \verb|A_ON| are tuples representing   the start-stop range for the donor and acceptor excitation periods   in timestamps units. After changing the parameters parameters,  a new plot alternation plot will show the new updates updated  period selections. When the alternation period selection is satisfactory it can  be applied with: 
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will be present in \verb|d| and to apply a different alternation   period definition the file must be reloaded.  For ns-ALEX measurement there is an analogical function  named \verb|plot_alternation_hist_nsalex| (\href{http://fretbursts.readthedocs.org/en/latest/plots.html#fretbursts.burst\_plot.plot\_alternation\_hist\_nsalex}{documentation})  that plots measurements  the same plot function will show  a  nanotime histogram and with  the current selection  for the donor and acceptor excitation highlited alternation  periods. The periods ranges are expressed in nanotime units in this case,   but  are defined set  and applied following with  the same syntax as for µs-ALEX.