If each of the values in your vector were to be associated with their corresponding dates, then you could plot them. A simple way to do this would be to create a new vector with only the date values and plot as:
plot(<vector of dates>, <vector of data values>)
NOTE: The number of date values that you have should be equal to those in your vector.
For example, if your vector was some x = [1,2,3,4,5] (5 elements), then you would create date_vec = [1951:1955] (also should have 5 elements) and then use plot(date_vec, x).
