Displaying 20 results from an estimated 2000 matches similar to: "multiple assignments ?"
2004 Jul 09
3
Problem with bwplot
Try factor(vec2) in your bwplot() call.
-----Original Message-----
From: r-help-bounces at stat.math.ethz.ch
[mailto:r-help-bounces at stat.math.ethz.ch]On Behalf Of Ernesto Jardim
Sent: Friday, July 09, 2004 9:41 AM
To: Mailing List R
Subject: [R] Problem with bwplot
Hi,
I'm ploting some box-and-whisker plots with bwplot but I'm not getting
any box-and-whiskers ... just dots.
2012 May 04
1
Equality of multiple vectors
Hello,
I'm writing a piece of code where I need to compare multiple same length
vectors.
I've gone through the basic functions like identical() or all(), but they
only work for comparing 2 vectors. From 3 vectors on, it doesn't work .
Example: Assuming
vec1 <- c (1,2,3,4,5)
vec2 <- c(1,2,3,4,5)
vec3 <- c(1,2,3,4,4)
identical (vec1,vec2,vec3) returns TRUE, since the 2
2007 Feb 01
2
Losing factor levels when moving variables from one context to another
Hi, there
I'm currently trying to figure out how to keep my "factor" levels for a
variable when moving it from one data frame or matrix to another.
Example below:
vec1<-(rep("10",5))
vec2<-(rep("30",5))
vec3<-(rep("80",5))
vecs<-c(vec1, vec2, vec3)
resp<-rnorm(2,15)
dat<-as.data.frame(cbind(resp, vecs))
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,
2013 Jun 18
1
transform 3 numeric vectors empty of 0/1
Dear all,
Without a loop, I would like transform 3 numeric vectors empty of 0/1 of
same length
Vec1 : transform 1 to A and 0 to ""
Vec2 : transform 1 to B and 0 to ""
Vec3 : transform 1 to C and 0 to ""
to obtain only 1 vector Vec who is the paste of the 3 vectors (Ex : ABC,
BC, AC, AB,...)
Any idea ?
Thank you for your help
--
Michel ARNAUD
2011 Oct 01
2
Returning vector of values shared across 3 vectors?
Help-Rs,
I've got three vectors representing participants:
vec1 <- c(4,5,6,7,8,9,10,11,12,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,64,65,66,67,68,69,70,71,72,73,74,75,76,77,78,79,80,81)
vec2 <- c (1,2,3,4,5,6,7,8,9,10,11,12,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,64,65,66)
vec3 <- c (1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,52)
I'd
2015 May 04
2
[LLVMdev] Incorrect code generated for arm64
Thanks Bruce.
> On 4 May 2015, at 13:18, Bruce Hoult <bruce at hoult.org> wrote:
>
> I can confirm that, with Apple LLVM version 6.0 (clang-600.0.56) (based on LLVM 3.5svn)
>
> Very strange!
Yes, that’s what I thought. I’ve also checked the binary downloads for OS X from llvm.org <http://llvm.org/> and get the same broken code from both the 3.5.2 and 3.6.0 releases.
2010 Feb 02
1
Build a matrix from another matrix by specifying the indexes
Hello R specialists,
I have a base vector called vBase with 102 elements. I have another vector
vec1 which elements are only part of vBase but is shorter. I transform vec1
so I get a vector with the same size as vBase and with each common element
on the same indexed row. If a value is missing in vec1 then I put a Na like
this:
vec1 vBase
Amsterdam Amsterdam
Na
2012 Aug 24
6
updating elements of a vector sequentially - is there a faster way?
I would like to know whether there is a faster way to do the below
operation (updating vec1).
My objective is to update the elements of a vector (vec1), where a
particular element i is dependent on the previous one. I need to do this on
vectors that are 1 million or longer and need to repeat that process
several hundred times. The for loop works but is slow. If there is a faster
way, please let
2009 Jun 22
2
Help on creating a sequence of vectors
I want to create a number of vectors like :
vec1 <- rnorm(1)
vec2 <- rnorm(2)
vec3 <- rnorm(3)
and so on...........
Here I tried following :
for (i in 1:10) paste("vec", i, sep="") <- rnorm(i)
However obviously that is not working. Here vectors I need to be seperated
i.e I do not want to create a "list". How to modify above code?
--
View this
2012 Nov 08
5
map two names into one
Thanks.
Yes. Your approach can identify:
Glaxy ace S 5830 and
S 5830 Glaxy ace
But you can not identify using same program:
Iphone 4S 16 G
Iphone 4S 16G
How should I solve both in same time.
Kind regards,Tammy
[[alternative HTML version deleted]]
1999 Dec 16
2
R question
I have the following question, which is elementary but I am unable to
answer.
In a for(i=10) loop, I am trying to represent the 10 1-dimensional vectors
l1, l2,... l10 by some expression that will run through these values.
ie. soppose I want to add l1 + ... + l10
I could go
x <- 0
for(i in 1:10){ x <- x+ l(i)}
This should return x to be the sum of the 10 li's for i from 1 to 10
2013 Sep 05
2
binary symmetric matrix combination
Hi,
May be this helps:
m1<- as.matrix(read.table(text="
y1 g24
y1 0 1
g24 1 0
",sep="",header=TRUE))
m2<-as.matrix(read.table(text="y1 c1 c2 l17
?y1 0 1 1 1
?c1 1 0 1 1
?c2 1 1 0 1
?l17 1 1 1 0",sep="",header=TRUE))
m3<- as.matrix(read.table(text="y1 h4??? s2???? s30
?y1 0 1 1 1
?h4 1 0 1 1
?s2 1 1 0 1
?s30 1 1 1
2024 Jun 16
1
slowness when I use a list comprehension
This can be vectorized. Try
ix <- seq_along(vec2)
S_diff2 <- sapply(seq_len(N1-(N2-1)*ratio_sampling), \(j)
sum((vec1[(ix-1)*ratio_sampling+j] - vec2[ix])**2))
On Sun, Jun 16, 2024 at 11:27?AM Laurent Rhelp <laurentRHelp at free.fr> wrote:
>
> Dear RHelp-list,
>
> I try to use the package comprehenr to replace a for loop by a list
> comprehension.
>
> I
2009 Jul 27
1
how to use do.call together with cbind and get inside a function
Dear R-helpers:
I have a question related to using do.call to call cbind and get.
#the following works
vec1 <- c(1,2)
vec2 <- c(3,4)
ColNameVec <- c('vec1','vec2')
mat <- do.call("cbind",lapply(ColNameVec,get))
mat
#put code above into a function then it does not work
#before doing so, first remove vec1 and vec2 from global environment
rm(vec1,vec2)
test
2008 Dec 30
2
[LLVMdev] Folding vector instructions
Hello.
Sorry I am not sure this question should go to llvm or mesa3d-dev mailing
list, so I post it to both.
I am writing a llvm backend for a modern graphics processor which has a ISA
very similar to that of Direct 3D.
I am reading the code in Gallium-3D driver in a mesa3d branch, which
converts the shader programs (TGSI tokens) to LLVM IR.
For the shader instruction also found in LLVM IR,
2024 Jun 16
2
slowness when I use a list comprehension
Dear RHelp-list,
?? I try to use the package comprehenr to replace a for loop by a list
comprehension.
?I wrote the code but I certainly miss something because it is very
slower compared to the for loops. May you please explain to me why the
list comprehension is slower in my case.
Here is my example. I do the calculation of the square difference
between the values of two vectors vec1 and
2008 May 12
1
lexicographic comparison of two vectors
Is there any built-in way to lexicographically compare two vectors of
the same length in R? The textbook algorithm could be coded as follows:
lex.cmp <- function (vec1,vec2) {
for (j in 1:length(vec1)) {
if (vec1[j] < vec2[j]) { return(-1) }
if (vec1[j] > vec2[j]) { return(1) }
}
return(0)
}
Thanks,
Gabriel
2024 Jun 16
1
slowness when I use a list comprehension
I would be more strong on this advice: learn to think in R, rather than thinking in Python, when programming in R. R has atomic vectors... Python does not (until you import a package that implements them). I find that while it is possible to import R thinking into Python, Python programmers seem to object for stylistic reasons even though such thinking speeds up Python also.
A key step in that
2024 Jun 16
1
slowness when I use a list comprehension
Laurent,
Thank you for introducing me to a package I did not know existed as I use features like list comprehension in python all the time and could see using it in R now that I know it is available.
As to why you see your example as slow, I see you used a fairly complex and nested expression and wonder if it was a better way to go. As you are dealing with an interpreter doing delayed