Displaying 20 results from an estimated 10000 matches similar to: "how to add list to a list in iterative manner without mixing content"
2006 Jan 20
2
big difference in estimate between dmvnorm and dnorm, how come?
Dear R community,
I was trying to estimate density at point zero of a multivariate
distribution (9 dimensions) and for this I was using a multinormal
approximation and the function dmvnorm , gtools package.
To have a sense of the error I tried to look the mismatch between a
unidimensional version of my distribution and estimate density at
point zero with function density, dmvnorm and dnorm.
At
2008 Jul 01
1
extracting elements from a list in vectorized form
Hi;
It seems to me that has probably been asked in the past. But I cannot find
the track.
I usually need to extract elements from a list and contruct vector from
them; e.g., to create a table. Perhaps there is a way to directly extract
them without looping?
Simple example:
> S.lst
$sublist.1
$sublist.1$age
[1] 24.58719
$sublist.1$weight
[1] 60.82861
$sublist.2
$sublist.2$age
[1] 32.39551
2010 Sep 22
2
efficient list indexing
Hello everyone,
I need some help with lists inside lists (a good way to emulate a struct)\
Assume that there is a small list called fred:
fred <- list(happy = 1:10, name = "squash")
and a big list called bigfred that includes fred list 5 times
bigfred <- rep(fred,5)
Is it possible somehow to index all these sublists(fred) inside bigfred with a
more direct way like this:
2007 Feb 22
3
List filtration
Hello R-ologists,
Imagine you have a list "list" like so:
>list
[[1]]
[1] "IPI00776145.1" "IPI00776187.1"
[[2]]
[1] "Something" "IPI00807764.1" "IPI00807887.1"
[[3]]
[1] "IPI00807764.1"
[[4]]
[1] "Somethingelse"
What I need to achieve is a filtered list "list2" like so:
>list2
[[1]]
[1]
2008 Nov 04
2
strange list structure question
my problem is more complex than below but I think below can suffice. i
have a list and the name of it at the top level is GGG. so, if i do an
lapply and operate on lower components in the sublist, then I can do as
shown in EXAMPLE 1 and what will come back will be named GGG at the top
level.
but, suppose that , the function inside the lapply function was more
complex and i wanted to
2011 Aug 04
2
How to extract sublist from a list?
Hi everyone,
Suppose I have a list named "lst", see below:
> lst
$sub1
...
$sub1$x
...
$sub1$y
....
$sub2
...
$sub2$x
...
$sub2$y
?
$sub3
...
...
...
Now, I want to extract the sub-sublist $y from every sublist(sub1, sub2...)
and then storage them to a new list.
I know how to extract them by subscript or list name one by one, but I
wonder if there exist some tricks to finish this
2012 Dec 22
1
plotting and saving diagrams automatically
[if the format of my email is changed or is difficult to understand, a text file is attached for easy understanding]Dear useRs,
i was wondering that if its possible in R to automatically generate plots and get it saved at the desired location? i have
data of cancer patients, from about 1000 cities around the world. i have converted that data into a list (called tcp) and
that list has 1000
2006 Jul 02
4
:order in partial
Hi,
i was looking through the docs and couldn''t find a good clean solution
for ordering a partial with an :order clause.
say i was iterating over categories and thier corresponding
sub-categories (regular belongs to) and wanted to order the
subcategories according to a certain column;
<% for category in @categories %>
<% render: partial => ''sublist'',
2011 Oct 14
3
Split a list
I have a list of dataframes i.e. each list element is a dataframe with three columns and differing number of rows. The third column takes on only two values. I wish to split the list into two sublists based on the value of the third column of the list element.
Second issue with lists as well. I would like to reduce each of the sublist based on the range of the second column, i.e. if the range of
2005 Jan 14
0
problem on how R2.0 handle the RAM, maybe a bug
Hi ,
I apologize to send again the message but I realized that i didn't
put the subject and so people could not reply correctly
>Date: Wed, 12 Jan 2005 10:29:09 -0500
>To: r-help@stat.math.ethz.ch
>From: saverio vicario <saverio.vicario@yale.edu>
>Subject:
>Cc:
>Bcc:
>X-Attachments:
>
>Dear help desk and R community,
>I have a problem on how R2.0 handle
2006 Oct 30
2
which duplicated rows to delete
Hi
Say I've this vector with several duplicates
>x<-c(1,2,3,4,2,6,2,8,2,3)
>which(duplicated(x))
[1] 5 7 9 10 11
But what I realy want is somthing like:
List({2,5,7}, {3,10}, ...)
Then from each sublist I can specify which of the duplicate items to drop
res<-NULL
for(vec in myDuplicateList)
res<-rbind(res, subset(data[vec,], myCrit))
I'll get some of the way by
2008 May 14
4
Accessing items in a list of lists
Using R 2.6.2, say I have the following list of lists, "comb":
data1 <- list(a = 1, b = 2, c = 3)
data2 <- list(a = 4, b = 5, c = 6)
data3 <- list(a = 3, b = 6, c = 9)
comb <- list(data1 = data1, data2 = data2, data3 = data3)
So that all names for the lowest level list are common. How can I most
efficiently access all of the sublist items "a" indexed by the outer
2016 Aug 17
5
code to sort otherwise-unsortable "ilist"s, e.g. symbol tables
Dear all,
The below has been tested quite thoroughly by now, including performance-testing by the way of
using a modified compiler that triggers the below while compiling at least an old part of LLVM
["Function.cpp"] and sorting a symbol table with >7000 global variables.
Unfortunately, the optimization I have been working on for which I _thought_ I needed the
ability to sort a
2018 Dec 13
2
Tinc: Fix compilation without deprecated OpenSSL APIs
I received this PR for the tinc package on OpenWrt.
https://github.com/openwrt/packages/pull/7646/files
Not sure if this is something that is better going upstream instead.
Moreover, from a security point of view, is it okay to merge this patch ?
thank you
Saverio
2012 Dec 24
2
colmeans not working
[text file is also attached in case you find the format of email difficult to understand]
Dear useRs,You must all the planning for the christmas, but i am stucked in my office on the following issue
i had a file containg information about station name, year, month, day, and discharge information. i opened it by using
following command
> dat1<-read.table("EL.csv",header=TRUE,
2002 Dec 05
2
Two different yaxes with lattice plots
In "normal" plots, I can do an axis at side = 2 and a different one at
side = 4. I've not been able to figure out how to do the same thing
with lattice plots. The scales list can have only one sublist named
y. I had thought of using a separate viewport alongside with the text
for the axis label, but I can't see how I could get the ticks to work.
Ideas appreciated.
Thanks.
2009 Oct 27
1
How to express a tree?
Hello everybody,
I'm write a function whose output represents a tree. Can anyone please
recommend me some data structure in R which are good for expressing a
tree? The possible idea I'm having in my mind is to represent the
whole tree as a list in which a sublist (an element to the main list)
contains all its corresponding branches. Is there any simpler way of
doing this? Thank you very
2009 Oct 01
1
Value of SET_STRING_ELT() must be a 'CHARSXP' not a 'character' & 'getEncChar' must be called on a CHARSXP
Hello,
I have list of 600K lists, each sublist a list of two elements, the
first a character, the second a list of six named elements, some
characters some numrics.
LISTA (600K) (:= h)
|__ List of two elements
|__ Character
|__ Named List of 6 elements (characters and numerics)
This works,
sip <- lapply(h,function(r) r[[2]][['sip']])
but I wish to unlist this
2010 Dec 14
3
PMTUDiscovery and ClampMSS with mixed tincd versions
> Currently, i have nodes with PMTUDiscovery =yes and ClampMSS = yes.
Hello,
these features were introduced in 1.0.13 correct ??
I also understand that the two settings are by default "yes" if not
explictly set to "no" in the config file.
what may happen if I have a network with mixed versions from 1.0.11
and 1.0.13, where the older daemons do not implement that feature
2006 May 26
0
Hellp needed with sublist plugin
Is there somebody out there who has built a working thingy with the
Sublist plugin? I can''t get it to work. I get this error message:
undefined method `stringify_keys!'' for "2005":String
RAILS_ROOT: ./script/../config/..
Application Trace | Framework Trace | Full Trace
E:/Programmeren/Ruby/lib/ruby/gems/1.8/gems/activerecord-1.14.2/lib/active_record/base.rb:1506:in