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

[Julian M. Burgos]

I tried that too, but I am still getting the error.

Alzira Ramos writes:

> Maybe, you need to add raster::extent(c(-160,10,30,60))
>
> r <- raster(nrow=45, ncol=90)
> r[] <- 1:ncell(r)
> e <- raster::extent(-160, 10, 30, 60)
> rc <- crop(r, e)
>
>
> On 2 May 2018 at 10:58, Julian M. Burgos <julian.burgos at hafogvatn.is> wrote:
>
>> No, I am still getting the same error, either using
>> extent(c(-160,10,30,60)) or extent(-160,10,30,60).  I can crop polygons
>> with no problem.  The strange thing is that it was working fine until a
>> couple of days ago.  I am not sure what changed...
>>
>>
>> Vijay Lulla writes:
>>
>> > 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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>>
>> --
>> 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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>>


--
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