[R] plotting time series with data gap using type line- but do not want to connect gap with line

Gabor Grothendieck ggrothendieck at gmail.com
Thu May 28 21:16:42 CEST 2009

Just place a point with an NA value between the two segments.
Here is one way to do it in zoo:


# create sample data
tt <- c(1:1000, 1200:2000)
z <- zoo(rnorm(length(tt)), tt)

# this will fill in omitted values with NAs
z <- as.zoo(as.ts(z))


On Thu, May 28, 2009 at 3:05 PM,  <Josef.Kardos at phila.gov> wrote:
> I have a time series of about 1500 measurements.  There are sporadic data
> gaps.  I would like to plot the time series with type "line".  I only want
> a line to connect the periods with data; I don't want a line to connect
> the points across a data gap.  Is there a function or recommended method
> to deal with this?
> For example
> there are 2000 days
> days 1:1000 each have one measurement of temperature
> days 1001: 1199 have no data
> days 1200:2000 each have one measurement of temperature
> I want the plot to connect points 1:1000 with a line, and to connect
> points 1200: 2000 with a different  line. I don't want a line to connect
> points 1001:1200.
> I searched the help archives and google but couldn't find anything. Any
> advice?
> JK
>        [[alternative HTML version deleted]]
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