Well, without knowing what is the structure of Mystruct.Map and
Mystruct.xy, it's really difficult to know how to help you.
And what is Mystruct by the way!?
Could you send us the output from dput(your_objects) and/or
str(your_objects)?
I think you're really confused about the structure of your objects. You
probably need to read more stuff about that!
Ivan
Le 11/17/2010 14:56, Alaios a écrit :
Thanks a lot for your helpful answer.
In my case now I have implemented some "struct" with the following
structure
Mystruct.Map
Mystruct.xy
If I do Mystruct[2].$xy I get correctly the xy values of the second item.
I want now to print all the $xy fields of the Mystruct[[]]
I tried
Mystruct[data.frame(a=1:5)]]$xy which returns the following message:
invalid subscript type 'list'
I would like to thank you again for your support
Regards
Alex
--- On *Wed, 11/17/10, Ivan Calandra /<ivan.calan...@uni-hamburg.de>/*
wrote:
From: Ivan Calandra <ivan.calan...@uni-hamburg.de>
Subject: Re: [R] Give me all operator
To: r-help@r-project.org
Date: Wednesday, November 17, 2010, 1:44 PM
Hi Alex,
Is that what you're looking for:
> df <- data.frame(a=LETTERS[1:5], b=rnorm(5))
> df
a b
1 A -0.2401323
2 B -0.9414998
3 C 0.4289836
4 D 1.9802749
5 E -0.6993612
> df[3,2]
[1] 0.4289836
> df[3,]
a b
3 C 0.4289836
> df[,2]
[1] -0.2401323 -0.9414998 0.4289836 1.9802749 -0.6993612
> df[,2, drop=FALSE]
b
1 -0.2401323
2 -0.9414998
3 0.4289836
4 1.9802749
5 -0.6993612
See ?"[" for help. In short, in R you use "[", not brackets as in
matlab
(from your example, I've never used it). You don't need the ":", you
just don't write anything in R.
Ivan
Le 11/17/2010 14:34, Alaios a écrit :
> Hello is there in R any operator that give you all the data of a
matrix
> for example in matlab
>
> x(2,3) returns the 2ndth row and 3rdth column
> x(2,:) returns all the columns of the 2nd row.
>
> In R now I would like to print all the
>
> CRagent[[i]][2]
>
>
> CRagent[[:]][2] doesnot work of course. Other option is to
make a loop with an index i that spans from 1:last element of
CRagent[[]] but this is not that optimal.
>
> I would like to thank you in aavance for your help
> Best Regards
> Alex
>
>
>
>
> [[alternative HTML version deleted]]
>
>
>
> ______________________________________________
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> PLEASE do read the posting guide
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--
Ivan CALANDRA
PhD Student
University of Hamburg
Biozentrum Grindel und Zoologisches Museum
Abt. Säugetiere
Martin-Luther-King-Platz 3
D-20146 Hamburg, GERMANY
+49(0)40 42838 6231
ivan.calan...@uni-hamburg.de
</mc/compose?to=ivan.calan...@uni-hamburg.de>
**********
http://www.for771.uni-bonn.de
http://webapp5.rrz.uni-hamburg.de/mammals/eng/mitarbeiter.php
______________________________________________
R-help@r-project.org </mc/compose?to=r-h...@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.
--
Ivan CALANDRA
PhD Student
University of Hamburg
Biozentrum Grindel und Zoologisches Museum
Abt. Säugetiere
Martin-Luther-King-Platz 3
D-20146 Hamburg, GERMANY
+49(0)40 42838 6231
ivan.calan...@uni-hamburg.de
**********
http://www.for771.uni-bonn.de
http://webapp5.rrz.uni-hamburg.de/mammals/eng/mitarbeiter.php
______________________________________________
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.
