In fact, ISOdate fails with any date earlier than 1970 on this system:
ISOdate(1969,12,31)
[1] "NA"
ISOdate(1970,1,1)
[1] "1970-01-01 07:00:00 EST" The problem is in strptime:
strptime(paste(1970,1,1,12,0,0),"%Y %m %d %H %M %S")
[1] "1970-01-01 12:00:00"
strptime(paste(1969,12,31,12,0,0),"%Y %m %d %H %M %S")
[1] "NA"
The man page for strptime doesn't mention any limitations.
R. Woodrow Setzer, Jr. Phone:
(919) 541-0128
Experimental Toxicology Division Fax: (919) 541-5394
Pharmacokinetics Branch
NHEERL MD-74; US EPA; RTP, NC 27711
Peter Dalgaard
BSA To: Woodrow Setzer/RTP/USEPA/US at EPA
<p.dalgaard at bios cc: r-help at hypatia.math.ethz.ch
tat.ku.dk> Subject: Re: [R] make check fails for 1.3.0 on SGI at
Sent by: ISOdate(1901,1,1)
pd at pubhealth.ku.
dk
06/26/01 03:35
PM
Setzer.Woodrow at epamail.epa.gov writes:
I've successfully compiled R 1.3.0 on SGI (info below) but it fails make check. From base-Ex.Rout:
## first days of years in the (commonly used) 20th century seq(ISOdate(1901,1,1), ISOdate(1999,1,1), "years")
Error in if (to <= from) stop("`to' must be later than `from'") :
missing value where logical needed
Execution halted
Indeed, from the same binary:
ISOdate(1901,1,1)
[1] "NA"
ISOdate(1999,1,1)
[1] "1999-01-01 07:00:00 EST" Does anyone have any ideas?
You probably have a problem in the substrate that ISOdate feeds on. Offhand, I'd suspect an overrun problem. Some systems that represent time as seconds since 1970 get in trouble in 2038, wouldn't they also get in trouble from going more than 68 years backwards in time from 1970. Does it work if you replace 1901 with - say - 1910? To see if the rest checks out, you could comment out that example in the sources. -- O__ ---- Peter Dalgaard Blegdamsvej 3 c/ /'_ --- Dept. of Biostatistics 2200 Cph. N (*) \(*) -- University of Copenhagen Denmark Ph: (+45) 35327918 ~~~~~~~~~~ - (p.dalgaard at biostat.ku.dk) FAX: (+45) 35327907 -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", or "[un]subscribe" (in the "body", not the subject !) To: r-help-request at stat.math.ethz.ch _._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._