[Rd] lapply(ts(1:2), length) inconsistent answers

[Spencer Graves]

Hello, All:


       I'm getting different answers from "lapply(ts(1:2), length)", 
depending on what is attached, with nothing obviously masked.


             1.  Am I correct that the answer to "lapply(ts(1:2), 
length)" should be a list of length 2 consisting of "int 1" twice? This 
is what I get from R 3.0.2 with nothing else attached.  If I've attached 
other things including mar1s and a version of fda prior to the current 
2.4.0 on CRAN, I get a list of length 1 consisting of "int 2".  See below.


              2.  What might cause this inconsistency?  I'm guessing 
this may be due to something strange in the NAMESPACE, but I wouldn't 
now what.


       Thanks,
       Spencer Graves


# FROM R 3.0.2 ALONE:

 > sessionInfo()
R version 3.0.2 (2013-09-25)
Platform: i386-w64-mingw32/i386 (32-bit)

locale:
[1] LC_COLLATE=English_United States.1252
[2] LC_CTYPE=English_United States.1252
[3] LC_MONETARY=English_United States.1252
[4] LC_NUMERIC=C
[5] LC_TIME=English_United States.1252

attached base packages:
[1] stats     graphics  grDevices utils     datasets  methods base

other attached packages:
[1] sos_1.3-8  brew_1.0-6
 > lapply(ts(1:2), length)
[[1]]
[1] 1

[[2]]
[1] 1

###############################

# FROM R 3.0.2 AFTER attach(fda), with a version between 2.3.8 and 2.4.0 
but closer for this purpose to 2.3.8:

  lapply(ts(1:2), length)
[[1]]
[1] 2

Browse[2]> sessionInfo()
R version 3.0.2 (2013-09-25)
Platform: x86_64-w64-mingw32/x64 (64-bit)

locale:
[1] LC_COLLATE=English_United States.1252
[2] LC_CTYPE=English_United States.1252
[3] LC_MONETARY=English_United States.1252
[4] LC_NUMERIC=C
[5] LC_TIME=English_United States.1252

attached base packages:
[1] stats     graphics  grDevices utils     datasets  methods base

loaded via a namespace (and not attached):
  [1] chron_2.3-44    cmrutils_1.2-2  fda_2.4.0       grid_3.0.2
  [5] lattice_0.20-24 mar1s_2.0-1     Matrix_1.0-14   splines_3.0.2
  [9] tools_3.0.2     zoo_1.7-10


##*** NOTE:  This says fda_2.4.0.  However, I believe that's an error:  
With this session open and with fda 2.3.9 attached, I did "R CMD INSTALL 
fda_2.4.0.tar.gz".  The open session seemed to use fda 2.3.9, generating 
the inconsistent behavior documented above;  I finally simplified it to 
the form here.  I believe that sessionInfo() got the version number not 
from the version it was actually using but from the latest installed 
version, which in this case is different.