| addExpiry {quantmod} | R Documentation | 
Apply options or futures expiration vertical bars to current chart.
addExpiry(type = "options", lty = "dotted")
type | 
options or futures expiration | 
lty | 
type of lines to draw | 
See options.expiry and futures.expiry in quantmod for details and limitations.
Expiration lines will be drawn at appropriate dates. A chibTA object will be returned silently.
Jeffrey A. Ryan
## Not run: addExpiry() ## End(Not run)