[R] trying to plot.

[MacQueen, Don]

I'm going to assume that the binseg.mean.cumsum() function is from the
changepoint package. I don't know any details about this function or
package, so I'm going to make a suggestion based in basic R principles.

I'd suggest that for the time being you ignore whatever it is that the
changepoint documentation says about signatures, and instead do this:

  class(binsegeeV)

If the changepoint package includes a method for plotting objects of that
class, then
  plot(binsegeeV)
should produce a plot. It did not, which implies that the package does not
include a method.

Is there something in the package documentation that suggests a plot
function is provided?


Apparently, you'll have to figure out for yourself how to plot such an
object. Which might be easy, depending on what structure of binsegeeV is,
and what kind of plot you want. (Unfortunately, I can't help with that)

The one caveat I have is that perhaps the package has some plotting
capability for the output of binseg.mean.cumsum(), but there's something
else you have to do to make it work.

-Don

-- 
Don MacQueen

Lawrence Livermore National Laboratory
7000 East Ave., L-627
Livermore, CA 94550
925-423-1062





On 3/6/14 5:38 PM, "Bill" <william108 at gmail.com> wrote:

>Hi. I am trying to plot. In the changepoint package documentation it says
>something about signature.
>http://cran.r-project.org/web/packages/changepoint/changepoint.pdf
>
>print-methods ~~ Methods for Function print in Package 'base' ~~
>Description
>~~ Methods for function print in Package 'base' ~~
>Methods
>signature(x = "ANY") Generic print function, see base package description
>using ?print
>signature(x = "cpt") Prints out information contained within the object x
>including a summary
>signature(x = "cpt.reg") Prints out information contained within the
>object
>x including a
>summary
>
>I don't understand what they mean by signature. For example, there is a
>function called
>binseg.mean.cusum
>
>and I want to plot the results.
>I tried this:
>binsegeeV=binseg.mean.cusum(eeV, Q=5, pen=0)
>
>plot(binsegeeV,cpt.width=3)
>
>but I get this.
>Error in xy.coords(x, y, xlabel, ylabel, log) :
>  'x' is a list, but does not have components 'x' and 'y'
>
>Anyone know how I can plot the results of binseg.mean.cusum() ?
>Thanks.
>
>	[[alternative HTML version deleted]]
>
>______________________________________________
>R-help at r-project.org mailing list
>https://stat.ethz.ch/mailman/listinfo/r-help
>PLEASE do read the posting guide
>http://www.R-project.org/posting-guide.html
>and provide commented, minimal, self-contained, reproducible code.