[R] plot

[(Ted Harding)]

On 09-Dec-05 Rhett Eckstein wrote:
> Dear R users:
> 
>> C1
>    time        X1
> 1   0.5  6.296625
> 2   1.0 10.283977
> 3   1.5 12.718610
> 4   2.0 14.112740
> 5   3.0 15.053917
> 6   4.0 14.739725
> 7   6.0 12.912230
> 8   8.0 10.893264
> 9   0.5  6.289166
> 10  1.0 10.251247
> 11  1.5 12.651346
> 12  2.0 14.006958
> 13  3.0 14.870618
> 14  4.0 14.487026
> 15  6.0 12.555566
> 16  8.0 10.474695
>> plot(C1,type="l")
> In the plot, there is a straight line between time=0.5 and time=8,
> If I do not want the straight line, what should I do?
> Thanks for any help!!

This happens because 'plot' is based on plotting the entire
series of points which you give it, whereas your data (on the
basis of the 'time' variable) consists of 2 series.

So the solution is to plit it:

  plot(C1[(1:8),],type="l",col="green")
  lines(C1[(9:16),],col="blue")

(where I've added the "col" option to illustrate how to identify
the two series by colour).

Best wishes,
Ted.


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Date: 09-Dec-05                                       Time: 12:24:23
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