[AA,LL] = spy(X,...)
[AA,LL] = spy(RANGE,X,...)
X [ tseries ] - Input tseries object whose non-NaN observations will be plotted as markers.
RANGE [ tseries ] - Date range on which the tseries observations will be visualised; if not specified the entire available range will be used.
AA [ tseries ] - Handle to the axes created.
LL [ tseries ] - Handle to the marks plotted.
'names=' [ cellstr ] - Names that will be used to annotate individual columns of the input tseries object.
'test=' [ function_handle | @(x)~isnan(x) ] - Test applied to each observations; only the values returning a true will be displayed.
See help on tseries/plot and the built-in function spy for all options available.