cpt.mean doesn't accept a ts object about changepoint HOT 3 CLOSED

If I run the following then it works:

data=ts(data=rnorm(100),start=c(2000,1),frequency=12)
cpt.mean(data)

Output:

class 'cpt' : Changepoint Object
~~ : S4 class containing 12 slots with names
cpttype date version data.set method test.stat pen.type pen.value minseglen cpts ncpts.max param.est

Created on : Wed Aug 11 17:32:15 2021

summary(.) :

Created Using changepoint version 2.2.2
Changepoint type : Change in mean
Method of analysis : AMOC
Test Statistic : Normal
Type of penalty : MBIC with value, 13.81551
Minimum Segment Length : 1
Maximum no. of cpts : 1
Changepoint Locations :

Can you provide a minimal working example such as the above?

from changepoint.

Ach, I constructed my ts object using a single-columned tibble rather than pull()ing to a vector. This was giving the object something to return with dim() when it shouldn't, and tripping the error. Switching select to pull resolves.

Sorry to bother you!

from changepoint.

No problem! I'm always open to hearing that my code my be incorrect but glad when it turns out I don't have to do anything :-)

Please do come back to me if you find anything else or have any comments for improvements. One thing I do need to do is return a ts object in the data slot for the output. Currently, we return a vector which means that the plotting doesn't use the time attributes of the input object. Clearly not desirable!

from changepoint.