Message-ID: <6fdf6d430909230843p674da615uc7e886855d211985@mail.gmail.com>
Date: 2009-09-23T15:43:14Z
From: Nicolas Chapados
Subject: timeSeries:: bizarre rbind behavior with colnames
Dear list,
Looking at the code for timeSeries::rbind, it appears that it insists
on concatenating the names of the two series it's trying to bind, even
if they match exactly, thereby creating a longer series name. This is
in sharp contrast to, e.g. rbind.data.frame. This creates very
badly-behaved column names (i.e. horrendously-long) in the case where
one attempts to construct a timeSeries incrementally.
For example:
> rbind(timeSeries(1.0, timeDate("1996-01-01"), units="Level"), timeSeries(2.0, timeDate("2009-01-01"), units="Level"))
GMT
Level_Level
1996-01-01 1
2009-01-01 2
Can someone explain the design rationale for choosing to concatenate
the column names in such a manner? In the short term, I resolved to
incrementally constructing a matrix, and at the very end building a
timeSeries, but I would really prefer to keep timeSeries all along...
Many thanks for any help!
+ Nicolas Chapados