Question about plotting discontinuous data
On Fri, 9 Sep 2005, Larsen Chung wrote:
Hi, I have a simple question that I just cannot figure out. I have 2 corresponding columns of data, one column (X-axis) for time (formatted thus: 8:30:01am = 830.1, 12:30:05pm = 1230.5, and one column (Y-axis) for values.
R comes with support for various time formats, use them! Look at particular at "chron" and "POSIXct". In addition, you might want to define a time series object which might make plotting (and other operations) even easier. Look in particular at the "zoo" package which supports both time formats above. Z
When I attempt to plot the data using something like plot(inputdata[,1],inputdata[,2],type="l"); I get breaks in the plot (since the time essentially jumps from 8:59:59am = 859.59 to 9:00:00am = 900.0). Essentially, I get the plot shape I want if I just plot the 'values' column using plot(inputdata[,2],type="l"); however, then I don't get the corresponding 'time' labels. Is there a way I can plot these two columns together without the 'breaks'?
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