Interpolation tag history

Ignition
1

Is there any way to change the interpolation feature, instead of inserting imaginary values just used the previous value, because if I turn off interpolation if the value didn't change it will show zeroes.

for example (time,values) instead of this
9am 5
10am 6.5 (interpolaled value)
11am 8

to this:
9am 5
10am 5
11am 8

2

The only thing that you can do without "rolling your own", is change the Deadband Style and the Aggregation Mode.

3

im using last value on aggregation mode, but yeah it still about the deadband style but i dont want to use periodic since its inefficient.