Displaying 20 results from an estimated 10000 matches similar to: "turning list-elements into a vector"
2003 Sep 12
7
convert a Character-string to a number
Hi Everyone.
I have a simple problem but don't know, how to get along.
how can I convert the vector
a<-c("0,01","1,00")
in a vector
b<-c(0.01,1.00)
Thank you for suggestions
M.Kirschbaum
[[alternative HTML version deleted]]
2003 Jul 31
6
how to make a plot without any axis-labeling
Hi.
I got a problem, perhaps someone can help me.......
every time, when I want to plot data, both axis are labeled by default like
data[1,]
and
data[2,]
how can I make a plot without ANY labeling?
does anyone know that?
thanks for helping
Michael
[[alternative HTML version deleted]]
2003 Sep 16
7
Retrieve ... argument values
Dear R users,
I want to retrieve "..." argument values within a function. Here is a small
exmaple:
myfunc <- function(x, ...)
{
if (hasArg(ylim)) a <- ylim
plot(x, ...)
}
x <- rnorm(100)
myfunc(x, ylim=c(-0.5, 0.5))
Error in myfunc(x, ylim = c(-0.5, 0.5)) : Object "ylim" not found
>
I need to retrieve values of "ylim" (if it is defined
2005 Apr 20
2
Package under R 2.1.0: package.rds
Hi everybody,
I have trouble installing my own package under R 2.1.0 (it is fine under R
2.0.1). My OS is Windows NT.
I installed my package 'mag' by using menu "Packages/Install package from
local zip files....". It's fine (html package description was updated). But
when I typed in library(mag) it gave me error:
Error in library(mag) : there is no package called
2003 Sep 12
2
Sorting a vector by date
Hello out there....
Again I have a problem and I stuck...
How can I sort a vector of dates?
For example I have the vector
a<-ISOdate(2001, 1, 1) + 70*86400*runif(10)
How can this vector be sorted chronological?
And what's the function I should work with to handle these entries?
(in sense of: which(a>2001-01-04) or somehting like that)
Thank you for helping
M.Kirschbaum
2013 Feb 06
3
how to "multiply" list of matrices by list of vectors
Hi everyone,
I'd like to be able to apply lda to each 2D matrix slice of a 3D array, and
then use the scalings to obtain the corresponding lda scores.
I can use 'apply' to get a list of the lda output for each 2D slice, and
can create a list of the resulting scalings, but I'm not sure how to
multiply them in a vectorized way.
Here's how I made a list of 2D matrices
2005 Apr 21
1
Installing packages from source code
Hi everybody,
I have trouble in installing packages from source code by following Section
5.1 in manual R-admin.pdf . I am using R 2.1.0 and Win NT.
Following the Windows toolset section in the manual, I download the tool
set package from: http://www.murdoch-sutherland.com/Rtools/tools.zip
and unzip under C:\tools
I also downloaded Perl (Windows Port) and installed it.
2008 Jun 23
2
Writing Vector to a File
Dear experts,
I try not to trouble the list again after this question.
I want to print this vector into a file
> myvec
[1] --Control --Control --Control --Control --Control HBA2 HBA1
[8] HBA1 --Control HBB --Control HBB HBA1 MBP
[15] --Control HBA1 HBA2 HBB PTGDS GAPDH UBC
[22] --Control GAPDH TPT1 HUWE1 PRM1 CKM
2011 Dec 21
2
unique combinations
Hi there,
I have a vector and would like to create a data frame, which contains
all unique combination of two elements, regardless of order.
myVec <- c(1,2,3)
what expand.grid does:
1,1
1,2
1,3
2,1
2,2
2,3
3,1
3,2
3,3
what I would like to have
1,1
1,2
1,3
2,2
2,3
3,3
Can anybody help?
2011 Jun 04
3
cbind 3 or more matrices
How can I cbind three or more matrices like A,B and C. This does not work:
cbind(A,B,C)
--
Thanks,
Jim.
[[alternative HTML version deleted]]
2007 Sep 21
3
Q: appending to non-existent vector?
This is a real newbie question. What makes it worse is that I know
I've seen the answer somewhere, but I can no longer find it.
If I have a loop that is supposed to generate a vector piecemeal,
adding an element each time through the loop, what do I do to stop it
failing the first time around the loop, when the vector doesn't yet
exist (so I can't use the append() function)?
2003 Aug 06
1
Standard error of standard deviation: bootstrap or theoretical results?
Dear R users,
This is more a statistical question rather than an R question. I'd
appreciate it if you can give me some suggestions.
I have a sample of a time series (sample size 500, fat tail in density). I
am trying to calculate the Standard error of standard deviation of a
sub-block-sample (sample size 250). I take 100 this kind of
sub-block-sample, randomly. For these 100 subsamples, I
2007 Sep 16
1
programming question
Dear list,
I have a vector of numbers, let's say:
myvec <- c(2, 8, 24, 26, 51, 57, 58, 78, 219)
My task is to reduce this vector to non-reducible numbers; small numbers can
cross-out some of the larger ones, based on a function let's say called
reduce()
If I apply the function to the first element 2, my vector gets shorted to:
> (myvec <- reduce(myvec[1]))
[1] 2 24 51
2011 Aug 24
3
Efficient way to Calculate the squared distances for a set of vectors to a fixed vector
I am pretty new to R. So this may be an easy question for most of you.
?
I would like to calculate the squared distances of a large set (let's say 20000) of vectors (let's say dimension of 5) to a fixed vector.
?
Say I have a data frame MY_VECTORS with 20000 rows and 5 columns, and one 5x1 vector y. I would like to efficiently calculate the squared distances?between each of the 20000
2005 Sep 01
1
More block diagonal matrix construction code
Folks:
In answer to a query, Andy Liaw recently submitted some code to construct a
block diagonal matrix. For what seemed a fairly straightforward task, the
code seemed a little "overweight" to me (that's an American stock analyst's
term, btw), so I came up with a slightly cleaner version (with help from
Andy):
bdiag<-function(...){
mlist<-list(...)
## handle case in
2011 Nov 26
2
simplify source code
Hi
I would like to shorten
mod1 <- nls(ColName2 ~ ColName1, data = table, ...)
mod2 <- nls(ColName3 ~ ColName1, data = table, ...)
mod3 <- nls(ColName4 ~ ColName1, data = table, ...)
...
is there something like
cols = c(ColName2,ColName3,ColName4,...)
for i in ...
mod[i-1] <- nls(ColName[i] ~ ColName1, data = table, ...)
I am looking forward to help
Christof
2010 Mar 10
1
How can I sort a character type vector?
Dear All,
I want to sort a character type vector.
the vector is
[1] 4 5 6 8 9 11 Y 1 13 15 16 20 X 2 3 10 14 19 XY 7 12 18 17 22
[25] 21
and I want to sort 1-22 X Y XY or 1-22 X XY Y.
How can I do that?
Thanks,
2015 May 04
2
[LLVMdev] Incorrect code generated for arm64
Hi all,
I’ve narrowed down a problem in my code to the following test case:
- - - -
typedef struct {float v[2];} vec2;
typedef struct {float v[3];} vec3;
vec2 getVec2();
vec3 getVec3()
{
vec2 myVec = getVec2();
vec3 res;
res.v[0] = myVec.v[0];
res.v[1] = myVec.v[1];
res.v[2] = 1;
return res;
}
- - - -
Compiling this with any level of optimization for arm64 gives incorrect code,
2003 Feb 20
3
outliers/interval data extraction
Dear R-users,
I have two outliers related questions.
I.
I have a vector consisting of 69 values.
mean = 0.00086
SD = 0.02152
The shape of EDA graphics (boxplots, density plots) is heavily distorted
due to outliers. How to define the interval for outliers exception? Is
<2SD - mean + 2SD> interval a correct approach?
Or should I define 95% (or 99%) limit of agreement for data interval,
2007 Jan 30
6
jump in sequence
Dear list,
This should be a simple one, I just cannot see it.
I need to generate a sequence of the form:
4 5 6 13 14 15 22 23 24
That is: starting with 4, make a 3 numbers sequence, jump 6, then another 3
and so on.
I can create a whole vector with:
myvec <- rep(rep(c(F, T, F), rep(3, 3)), 3)
Then see which are TRUE:
which(myvec)
[1] 4 5 6 13 14 15 22 23 24
I'd like to avoid