drawing a vertical line in a plot if it is contained in the range

I have plotted a graph with the command line:

plot(x/y)

Variable x is a datetime array from 01-Sept-2015 00:00:00 till 5-Aug-2016 00:00:00. The distance between every x-value is 1 hour.

another datetime array z is defined as:

'01-Sep-2016 03:30:00'
'05-Oct-2016 02:30:00'
'01-Sep-2016 03:30:00'
'04-Aug-2016 03:30:00'
'05-Jul-2016 03:30:00'

I want the datetime array z to be drawn as red dotted vertical line in the plot graph if it is contained in the graph.

Answer 1

[AA]

the way to tackle this problem is to see if the above datetime array falls between the two dates (01-Sept-2015 00:00:00 till 5-Aug-2016 00:00:00), If it does then it should be displayed. How can I create that if condition? Once i have it displayed, it would be easy for me to plot on the chart