Message-ID: <20742.22186.42206.155505@stat.math.ethz.ch>
Date: 2013-01-28T10:44:58Z
From: Martin Maechler
Subject: Minor issue in code of 'diffinv.vector' in R 2.15.2
In-Reply-To: <1359359690.66264.YahooMailClassic@web125102.mail.ne1.yahoo.com>
>>>>> Suharto Anggono Suharto Anggono <suharto_anggono at yahoo.com>
>>>>> on Sun, 27 Jan 2013 23:54:50 -0800 writes:
> In R 2.15.2 (and not before), in the definition of
> function 'diffinv.vector' in package stats, there is
> difference <- as.integer(differences)
> I believe
> differences <- as.integer(differences)
> is intended, because 'difference' is not referenced
> anywhere. However, without conversion of 'differences' to
> integer, 'diffinv.vector' in R 2.15.2 works OK.
Thank you, Suharto,
you are right... about the typo above, the tweaks below,
*and* ... ;-) ... that it is a minor issue
-> changed for R-patched and R-devel.
Martin Maechler, ETH Zurich
> Also, to make 'differences' consistently integer,
> diffinv.vector(diffinv.vector(x, lag,
> differences-1, diff(xi, lag=lag, differences=1)), lag, 1,
> xi[1L:lag])
> in the end part can be changed to
> diffinv.vector(diffinv.vector(x, lag,
> differences-1L, diff(xi, lag=lag, differences=1L)), lag,
> 1L, xi[1L:lag])