Hello Forum,
I have a problem with the strptime function. With the 'data1' dataset below
it works fine, but with the 'data2' dataset something goes wrong (see final
line below). Both data1 and data2 are in exactly the same original format,
the only difference is that they span different dates. Please help, since it
is driving me nuts! Many thanks.
Best wishes,
Des
-
> data1=read.table("data1.txt",header=T,sep="\t")
> datetime1=strptime(data1$Date, "%a %b %d %H:%M:%S %Y") #example line from
data1 'Tue Aug 16 03:00:01 2011'
> summary(datetime1)
Min. 1st Qu.
Median Mean
"2011-08-15 21:00:01 BST" "2011-10-08 01:00:01 BST" "2011-11-30 05:00:01
GMT" "2011-11-30 04:38:47 GMT"
3rd Qu. Max.
"2012-01-22 09:00:01 GMT" "2012-03-15 13:00:01 GMT"
> min(datetime1)
[1] "2011-08-15 21:00:01 BST"
> data2=read.table("data2.txt",header=T,sep="\t")
> datetime2=strptime(data2$Date, "%a %b %d %H:%M:%S %Y") #example line from
data2 'Sun Nov 27 13:07:01 2011'
> summary(datetime2)
Min. 1st Qu.
Median Mean
"2011-11-27 01:07:01 GMT" "2012-01-09 20:07:01 GMT" "2012-02-22 15:07:01
GMT" "2012-02-22 15:26:16 GMT"
3rd Qu. Max.
"2012-04-06 12:07:01 BST" "2012-05-20 07:07:01 BST"
> min(datetime2)
[1] NA
[[alternative HTML version deleted]]
______________________________________________
R-help@r-project.org 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.
