Hello everybody! I feel very stupid right now but suspect it has something to do with tiredness. I am trying to drop the last couple of Elements from a list and this doesn't work as expected. My code looks something like this: del <- deldir(x, y) tl <- tile.list(del) plot(tl) Now, I only want to plot the first 800 elements of tl and can't work out how to do this. plot(tl[1:800]) gives me an error "x is a list but does not have components x and y" which somewhat baffles me. I'm sure this is all due to lack of sleep but right now I feel very dumb and would welcome any pointers towards a solution for my problem. Many thanks! Raphael
Hi I do not know what is deldir, tile.list and what is structure of tl and do not have time to search. what is result of tl[1:20]? Do you expect such result? maybe plot(lapply(tl, "[", 1:800)) shall work. Cheers Petr> -----Original Message----- > From: R-help [mailto:r-help-bounces at r-project.org] On Behalf Of Raphael > P?bst > Sent: Wednesday, January 14, 2015 3:23 PM > To: r-help > Subject: [R] Probably dumb question about lists > > Hello everybody! > I feel very stupid right now but suspect it has something to do with > tiredness. I am trying to drop the last couple of Elements from a list > and this doesn't work as expected. > > My code looks something like this: > > del <- deldir(x, y) > tl <- tile.list(del) > plot(tl) > > Now, I only want to plot the first 800 elements of tl and can't work > out how to do this. > plot(tl[1:800]) > gives me an error "x is a list but does not have components x and y" > which somewhat baffles me. I'm sure this is all due to lack of sleep > but right now I feel very dumb and would welcome any pointers towards a > solution for my problem. > > Many thanks! > > Raphael > > ______________________________________________ > R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see > 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.________________________________ Tento e-mail a jak?koliv k n?mu p?ipojen? dokumenty jsou d?v?rn? a jsou ur?eny pouze jeho adres?t?m. Jestli?e jste obdr?el(a) tento e-mail omylem, informujte laskav? neprodlen? jeho odes?latele. Obsah tohoto emailu i s p??lohami a jeho kopie vyma?te ze sv?ho syst?mu. Nejste-li zam??len?m adres?tem tohoto emailu, nejste opr?vn?ni tento email jakkoliv u??vat, roz?i?ovat, kop?rovat ?i zve?ej?ovat. Odes?latel e-mailu neodpov?d? za eventu?ln? ?kodu zp?sobenou modifikacemi ?i zpo?d?n?m p?enosu e-mailu. V p??pad?, ?e je tento e-mail sou??st? obchodn?ho jedn?n?: - vyhrazuje si odes?latel pr?vo ukon?it kdykoliv jedn?n? o uzav?en? smlouvy, a to z jak?hokoliv d?vodu i bez uveden? d?vodu. - a obsahuje-li nab?dku, je adres?t opr?vn?n nab?dku bezodkladn? p?ijmout; Odes?latel tohoto e-mailu (nab?dky) vylu?uje p?ijet? nab?dky ze strany p??jemce s dodatkem ?i odchylkou. - trv? odes?latel na tom, ?e p??slu?n? smlouva je uzav?ena teprve v?slovn?m dosa?en?m shody na v?ech jej?ch n?le?itostech. - odes?latel tohoto emailu informuje, ?e nen? opr?vn?n uzav?rat za spole?nost ??dn? smlouvy s v?jimkou p??pad?, kdy k tomu byl p?semn? zmocn?n nebo p?semn? pov??en a takov? pov??en? nebo pln? moc byly adres?tovi tohoto emailu p??padn? osob?, kterou adres?t zastupuje, p?edlo?eny nebo jejich existence je adres?tovi ?i osob? j?m zastoupen? zn?m?. This e-mail and any documents attached to it may be confidential and are intended only for its intended recipients. If you received this e-mail by mistake, please immediately inform its sender. Delete the contents of this e-mail with all attachments and its copies from your system. If you are not the intended recipient of this e-mail, you are not authorized to use, disseminate, copy or disclose this e-mail in any manner. The sender of this e-mail shall not be liable for any possible damage caused by modifications of the e-mail or by delay with transfer of the email. In case that this e-mail forms part of business dealings: - the sender reserves the right to end negotiations about entering into a contract in any time, for any reason, and without stating any reasoning. - if the e-mail contains an offer, the recipient is entitled to immediately accept such offer; The sender of this e-mail (offer) excludes any acceptance of the offer on the part of the recipient containing any amendment or variation. - the sender insists on that the respective contract is concluded only upon an express mutual agreement on all its aspects. - the sender of this e-mail informs that he/she is not authorized to enter into any contracts on behalf of the company except for cases in which he/she is expressly authorized to do so in writing, and such authorization or power of attorney is submitted to the recipient or the person represented by the recipient, or the existence of such authorization is known to the recipient of the person represented by the recipient.
1. Please in future specify the package (deldir here) that contains the functions you refer to. 2. **Always** first try ?str before posting queries like this, as this will often reveal the problem. str(tl[1:800]) 3. I would **guess** (ergo could well be wrong) that "[" is not preserving the class attribute of tl. Ergo you are getting the basic plot method and not the plot.tile.list method. HTH. Cheers, Bert Bert Gunter Genentech Nonclinical Biostatistics (650) 467-7374 "Data is not information. Information is not knowledge. And knowledge is certainly not wisdom." Clifford Stoll On Wed, Jan 14, 2015 at 6:23 AM, Raphael P?bst <raphael.paebst at gmail.com> wrote:> Hello everybody! > I feel very stupid right now but suspect it has something to do with > tiredness. I am trying to drop the last couple of Elements from a list > and this doesn't work as expected. > > My code looks something like this: > > del <- deldir(x, y) > tl <- tile.list(del) > plot(tl) > > Now, I only want to plot the first 800 elements of tl and can't work > out how to do this. > plot(tl[1:800]) > gives me an error "x is a list but does not have components x and y" > which somewhat baffles me. I'm sure this is all due to lack of sleep > but right now I feel very dumb and would welcome any pointers towards > a solution for my problem. > > Many thanks! > > Raphael > > ______________________________________________ > R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see > 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.
plot.tile.list() expects its argument to be of class tile.list, and to have an
attribute "rw", both of which are not conserved after subsetting. You
can do ...
if (!require(deldir)) {
install.packages("deldir")
library(deldir)
}
x <- rnorm(10)
y <- rnorm(10)
del <- deldir(x, y)
tl <- tile.list(del)
tl2 <- tl[1:4]
class(tl2) <- "tile.list"
attr(tl2, "rw") <- attr(tl, "rw")
plot.tile.list(tl2) # or just plot(tl2)
BUT!
This doesn't really make sense because you are just "randomly"
plotting some tiles from the full triangulation, not plotting a triangulation
with less points. That would be:
plot(tile.list(deldir(x[1:4], y[1:4])))
Cheers,
B.
On Jan 14, 2015, at 10:13 AM, Bert Gunter <gunter.berton at gene.com>
wrote:
> 1. Please in future specify the package (deldir here) that contains
> the functions you refer to.
>
> 2. **Always** first try ?str before posting queries like this, as this
> will often reveal the problem.
>
> str(tl[1:800])
>
> 3. I would **guess** (ergo could well be wrong) that "[" is not
> preserving the class attribute of tl. Ergo you are getting the basic
> plot method and not the plot.tile.list method.
>
> HTH.
>
> Cheers,
>
> Bert
>
> Bert Gunter
> Genentech Nonclinical Biostatistics
> (650) 467-7374
>
> "Data is not information. Information is not knowledge. And knowledge
> is certainly not wisdom."
> Clifford Stoll
>
>
>
>
> On Wed, Jan 14, 2015 at 6:23 AM, Raphael P?bst <raphael.paebst at
gmail.com> wrote:
>> Hello everybody!
>> I feel very stupid right now but suspect it has something to do with
>> tiredness. I am trying to drop the last couple of Elements from a list
>> and this doesn't work as expected.
>>
>> My code looks something like this:
>>
>> del <- deldir(x, y)
>> tl <- tile.list(del)
>> plot(tl)
>>
>> Now, I only want to plot the first 800 elements of tl and can't
work
>> out how to do this.
>> plot(tl[1:800])
>> gives me an error "x is a list but does not have components x and
y"
>> which somewhat baffles me. I'm sure this is all due to lack of
sleep
>> but right now I feel very dumb and would welcome any pointers towards
>> a solution for my problem.
>>
>> Many thanks!
>>
>> Raphael
>>
>> ______________________________________________
>> R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see
>> 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.
>
> ______________________________________________
> R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see
> 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.