Displaying 6 results from an estimated 6 matches for "r2017".
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2018 Mar 06
2
raster time series statistics
...month=rep(formatC(1:12,flag=0,width=2),2),
year=sort(rep(2016:2017,12)))
timelst<-paste0(unlist(dt['year']),'-',unlist(dt['month']),"-01")
strptime(timelst,format="%Y-%m-%d")->t1
rts(s,time=as.yearmon(t1))->rsts
subset(rsts,'2017')->r2017
class(r2017 at time)
class(rsts at time)
apply.monthly(rsts,mean)
-----Original Message-----
From: David Winsemius [mailto:dwinsemius at comcast.net]
Sent: Tuesday, 6 March 2018 11:10 AM
To: Herr, Alexander (L&W, Black Mountain) <Alexander.Herr at csiro.au>
Cc: r-help at r-project.or...
2018 Mar 06
1
raster time series statistics
...month=rep(formatC(1:12,flag=0,width=2),2), year=sort(rep(2016:2017,12)))
timelst<-paste0(unlist(dt['year']),'-',unlist(dt['month']),"-01")
strptime(timelst,format="%Y-%m-%d")->t1
rts(s,time=as.yearmon(t1))->rsts
subset(rsts,'2017')->r2017
class(r2017 at time)
class(rsts at time)
apply.monthly(rsts,mean) # this creates error
rts(s,time=as.Date(t1))->rsts1
apply.monthly(rsts1,mean) # this creates output
-----Original Message-----
From: Jim Lemon [mailto:drjimlemon at gmail.com]
Sent: Tuesday, 6 March 2018 11:40 AM
To: Herr, Ale...
2018 Mar 06
0
raster time series statistics
...,width=2),2),
> year=sort(rep(2016:2017,12)))
> timelst<-paste0(unlist(dt['year']),'-',unlist(dt['month']),"-01")
> strptime(timelst,format="%Y-%m-%d")->t1
>
> rts(s,time=as.yearmon(t1))->rsts
> subset(rsts,'2017')->r2017
> class(r2017 at time)
> class(rsts at time)
>
> apply.monthly(rsts,mean)
>
>
>
> -----Original Message-----
> From: David Winsemius [mailto:dwinsemius at comcast.net]
> Sent: Tuesday, 6 March 2018 11:10 AM
> To: Herr, Alexander (L&W, Black Mountain) <Alexand...
2018 Mar 05
4
raster time series statistics
Hi List,
The following code returns an "Error in as.POSIXlt.character(x, tz, ...) : character string is not in a standard unambiguous format"
require(raster)
require(rts)
require(stringi)
r <- raster(ncol=100, nrow=100)
values(r) <- runif(ncell(r))
list(ID=seq(1:24),month=rep(str_pad(1:12, pad = 0,width = 2 , "left"),2),year=sort(rep(2016:2017,12)))->dt
2018 Mar 06
0
raster time series statistics
> On Mar 5, 2018, at 3:28 PM, <Alexander.Herr at csiro.au> <Alexander.Herr at csiro.au> wrote:
>
> Hi List,
>
> The following code returns an "Error in as.POSIXlt.character(x, tz, ...) : character string is not in a standard unambiguous format"
I'm unable to produce that error. Which function was being evaluated to produce the error? I don't see
2018 Mar 06
0
raster time series statistics
Hi Herry,
This is probably due to a call to strptime (or similar). No, it
doesn't accept %Y-%m as a valid format. Maybe add a constant day to
all the dates as that will work:
dt<-list(ID=seq(1:24),month=rep(formatC(1:12,flag=0,width=2),2),
year=sort(rep(2016:2017,12)))
timelst<-paste(unlist(dt['year']),unlist(dt['month']),"01",sep="-")