[R-sig-Geo] Bug in raster::crop?

[Vijay Lulla]

Works for me too...with same versions of everything.  Maybe you can try e
<- extent(c(-160,10,30,60)) ?  Apparently, ?`extent` states that it needs
either a Raster, Extent, matrix, or vector of four numbers.  I don't
understand why extent(-160,10,30,60) worked for me though!

On Tue, May 1, 2018 at 3:44 AM, Barry Rowlingson <
b.rowlingson at lancaster.ac.uk> wrote:

> Works perfectly for me, with the same versions of everything:
>
> >     r <- raster(nrow=45, ncol=90)
> >      r[] <- 1:ncell(r)
> >      e <- extent(-160, 10, 30, 60)
> >      rc <- crop(r, e)
> >
> > packageVersion("raster")
> [1] ‘2.6.7’
> > version
>                _
> platform       x86_64-pc-linux-gnu
> arch           x86_64
> os             linux-gnu
> system         x86_64, linux-gnu
> status
> major          3
> minor          4.4
>
> Can you get crop to work on anything?
>
> Barry
>
>
>
>
> On Tue, May 1, 2018 at 8:22 AM, Julian M. Burgos <
> julian.burgos at hafogvatn.is
> > wrote:
>
> > Hello everyone,
> >
> > I am getting this error when using the crop function in the raster
> > package.  Here is an example, sing the example in the help file:
> >
> > > r <- raster(nrow=45, ncol=90)
> > > r[] <- 1:ncell(r)
> > > e <- extent(-160, 10, 30, 60)
> > > rc <- crop(r, e)
> >
> > Error in extent(extent) : insufficient number of elements (should be 4)
> >
> > I am using R version 3.4.4., and raster 2.6-7.
> >
> > Many thanks,
> >
> > Julian
> >
> > --
> > Julian Mariano Burgos, PhD
> > Hafrannsóknastofnun, rannsókna- og ráðgjafarstofnun hafs og vatna/
> > Marine and Freshwater Research Institute
> > Botnsjávarsviðs / Demersal Division
> > Skúlagata 4, 121 Reykjavík, Iceland
> > Sími/Telephone : +354-5752037
> > Bréfsími/Telefax:  +354-5752001
> > Netfang/Email: julian.burgos at hafogvatn.is
> >
> > _______________________________________________
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> > R-sig-Geo at r-project.org
> > https://stat.ethz.ch/mailman/listinfo/r-sig-geo
> >
>
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-- 
Vijay Lulla, Ph.D.

Assistant Professor,
Dept. of Geography, IUPUI
425 University Blvd, CA-207C.
Indianapolis, IN-46202
vlulla at iupui.edu

<http://vijaylulla.com>
http://vijaylulla.com

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