Praveen Kanakamedala
2007-Aug-08 14:06 UTC
[R] Error: Cannot Coerce POSIXt to POSIXct when building package
A newbie here - please forgive me if this is a basic question. We have an
in house package built in R 2.2.1 (yes we're a little behind the times at
our firm)and would like to rebuild it using R 2.5.1. However, when I try
and build the package from source, I keep getting this error:
Error in as(slotVal, slotClass, strict = FALSE) :
no method or default for coercing "POSIXt" to
"POSIXct"
Error : unable to load R code in package 'Mango'
Error: package/namespace load failed for 'Mango'
I tried defining a new method "as.POSIXct" in the package to coerce
POSIXt
to POSIXct and then added the as.POSIXct method to the "NAMSPACE"
file. The
build still doesn't work (I get the same error message). Any idea what I am
doing wrong? The coercion statement looks like this and works in R GUI:
#from is a vector of dates in the format "%d-%b-%Y")
from <- as.POSIXct(strptime(from, format = "%d%b%Y"), tz =
"GMT")
Here is my environment info:
R version 2.5.1 (2007-06-27)
i386-pc-mingw32
locale:
LC_COLLATE=English_United Kingdom.1252;LC_CTYPE=English_United
Kingdom.1252;LC_MONETARY=English_United
Kingdom.1252;LC_NUMERIC=C;LC_TIME=English_United Kingdom.1252
attached base packages:
[1] "tcltk" "stats" "graphics"
"grDevices" "utils" "datasets"
"methods" "base"
other attached packages:
fSeries nnet mgcv fBasics fCalendar fEcofin spatial
MASS
"251.70" "7.2-34" "1.3-25" "251.70"
"251.70" "251.70" "7.2-34" "
7.2-34"
I would sincerely appreciate any help.
[[alternative HTML version deleted]]
Praveen Kanakamedala
2007-Aug-08 14:07 UTC
[R] Error: Cannot Coerce POSIXt to POSIXct when building package
A newbie here - please forgive me if this is a basic question. We have an
in house package built in R 2.2.1 (yes we're a little behind the times at
our firm)and would like to rebuild it using R 2.5.1. However, when I try
and build the package from source, I keep getting this error:
Error in as(slotVal, slotClass, strict = FALSE) :
no method or default for coercing "POSIXt" to
"POSIXct"
Error : unable to load R code in package 'Mango'
Error: package/namespace load failed for 'Mango'
I tried defining a new method "as.POSIXct" in the package to coerce
POSIXt
to POSIXct and then added the as.POSIXct method to the "NAMSPACE"
file. The
build still doesn't work (I get the same error message). Any idea what I am
doing wrong? The coercion statement looks like this and works in R GUI:
#from is a vector of dates in the format "%d-%b-%Y")
from <- as.POSIXct(strptime(from, format = "%d%b%Y"), tz =
"GMT")
Here is my environment info:
R version 2.5.1 (2007-06-27)
i386-pc-mingw32
locale:
LC_COLLATE=English_United Kingdom.1252;LC_CTYPE=English_United
Kingdom.1252;LC_MONETARY=English_United
Kingdom.1252;LC_NUMERIC=C;LC_TIME=English_United Kingdom.1252
attached base packages:
[1] "tcltk" "stats" "graphics"
"grDevices" "utils" "datasets"
"methods" "base"
other attached packages:
fSeries nnet mgcv fBasics fCalendar fEcofin spatial
MASS
"251.70" "7.2-34" "1.3-25" "251.70"
"251.70" "251.70" "7.2-34" "
7.2-34"
I would sincerely appreciate any help.
[[alternative HTML version deleted]]
Prof Brian Ripley
2007-Aug-08 14:27 UTC
[R] Error: Cannot Coerce POSIXt to POSIXct when building package
On Wed, 8 Aug 2007, Praveen Kanakamedala wrote:> A newbie here - please forgive me if this is a basic question. We have an > in house package built in R 2.2.1 (yes we're a little behind the times at > our firm)and would like to rebuild it using R 2.5.1. However, when I try > and build the package from source, I keep getting this error: > > Error in as(slotVal, slotClass, strict = FALSE) : > no method or default for coercing "POSIXt" to "POSIXct" > Error : unable to load R code in package 'Mango' > Error: package/namespace load failed for 'Mango' > > > I tried defining a new method "as.POSIXct" in the package to coerce POSIXt > to POSIXct and then added the as.POSIXct method to the "NAMSPACE" file. The > build still doesn't work (I get the same error message). Any idea what I am > doing wrong? The coercion statement looks like this and works in R GUI:How did you get this? There should be no objects of class 'POSIXt' alone, and I get e.g.> now <- Sys.time() > as(now, "POSIXct")Error in asMethod(object) : explicit coercion of old-style class (POSIXt, POSIXct) is not defined That can be fixed (see ?as), but you seem to have a malformed object in one of your slots. As often applies,> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code.> #from is a vector of dates in the format "%d-%b-%Y") > from <- as.POSIXct(strptime(from, format = "%d%b%Y"), tz = "GMT") > > Here is my environment info: > > R version 2.5.1 (2007-06-27) > i386-pc-mingw32 > > locale: > LC_COLLATE=English_United Kingdom.1252;LC_CTYPE=English_United > Kingdom.1252;LC_MONETARY=English_United > Kingdom.1252;LC_NUMERIC=C;LC_TIME=English_United Kingdom.1252 > > attached base packages: > [1] "tcltk" "stats" "graphics" "grDevices" "utils" "datasets" > "methods" "base" > > other attached packages: > fSeries nnet mgcv fBasics fCalendar fEcofin spatial > MASS > "251.70" "7.2-34" "1.3-25" "251.70" "251.70" "251.70" "7.2-34" " > 7.2-34" > I would sincerely appreciate any help. > > [[alternative HTML version deleted]] > > ______________________________________________ > R-help at stat.math.ethz.ch 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. >-- Brian D. Ripley, ripley at stats.ox.ac.uk Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/ University of Oxford, Tel: +44 1865 272861 (self) 1 South Parks Road, +44 1865 272866 (PA) Oxford OX1 3TG, UK Fax: +44 1865 272595