Displaying 20 results from an estimated 20000 matches similar to: "(-2) %% 12"
2005 Jun 03
2
rearrange data
Dear all:
I have this:
A1 B1 C1 D1 E1
A2 B2 C2 D2 E2
A3 B3 C3 D3 E3
And I want this
A1 E1
B1 E1
C1 E1
D1 E1
A2 E2
B2 E2
C2 E2
D2 E2
A3 E3
B3 E3
C3 E3
D3 E3
Example:
m<- matrix(1:15,nrow=3,byrow=T)
m
v<- unlist(list(t(m[,1:4])))
u<- rep(c(5,10,15),c(4,4,4))
data.frame(v,u)
This is the result I want but I would like to learn a simpler way to do it.
Any clue?
2005 May 31
2
help
Dear all:
I have this:
A1 B1 C1 D1 E1
A2 B2 C2 D2 E2
A3 B3 C3 D3 E3
And I want this
A1 E1
B1 E1
C1 E1
D1 E1
A2 E2
B2 E2
C2 E2
D2 E2
A3 E3
B3 E3
C3 E3
D3 E3
Example:
m<- matrix(1:15,nrow=3,byrow=T)
m
v<- unlist(list(t(m[,1:4])))
u<-
2007 Nov 14
2
Generating these matrices going backwards
I have generated the following:
x=
E1 E2 E3
D1 0 0 1
D2 1 0 3
D3 0 2 0
y=
E1 E2 E3
D1 0 0 1.75
D2 1.75 0 1.3125
D3 0 3.5 0
Where x and y are linked by:
y =sum(x) * x / (rowSums(x)%o%colSums(x))
N=x[x[1:3,]>0]
R=y[y[1:3,]>0]
Now suppose I ONLY
2007 Mar 09
1
Applying some equations over all unique combinations of 4 variables
#I have a data set that looks like this. A bit more
complicated actually with
# three factor levels but these calculations need to
be done on one factor at a
#I then have a set of different rates that are applied
#to it.
#dataset
cata <- c( 1,1,6,1,1,2)
catb <- c( 1,2,3,4,5,6)
doga <- c(3,5,3,6,4, 0)
data1 <- data.frame(cata, catb, doga)
rm(cata,catb,doga)
data1
# start rates
#
2004 Jul 08
2
Getting elements of a matrix by a vector of column indice s
See if the following helps:
> m <- outer(letters[1:5], 1:4, paste, sep="")
> m
[,1] [,2] [,3] [,4]
[1,] "a1" "a2" "a3" "a4"
[2,] "b1" "b2" "b3" "b4"
[3,] "c1" "c2" "c3" "c4"
[4,] "d1" "d2" "d3" "d4"
[5,]
2012 Jul 18
6
taylor expansions with real vectors
Dear list,
I have a big deal concerning the development of a Taylor expansion.
require(Matrix)
e1 <- as.vector(1:5)
e2 <- as.vector(6:10)
in order to obtain all the combinations between these two vectors following
a Taylor expansion (or more simply through a Maclaurin series) for real
numbers.
We have f(x) = f(0) + f'(0)(x-0) + f''(0)(x-0)^2/2! + ? + f^(k)(0)(x-0)^k/k!
2019 Nov 18
2
BUG?: A copy of base::`+` (primitive) is not a clone but a "pointer"
On 11/18/19 9:18 AM, Martin Maechler wrote:
>>>>>> Henrik Bengtsson
>>>>>> on Sun, 17 Nov 2019 14:31:07 -0800 writes:
> > $ R --vanilla R version 3.6.1 (2019-07-05) -- "Action of
> > the Toes" Copyright (C) 2019 The R Foundation for
> > Statistical Computing Platform: x86_64-pc-linux-gnu
> > (64-bit) ...
2019 Nov 17
2
BUG?: A copy of base::`+` (primitive) is not a clone but a "pointer"
$ R --vanilla
R version 3.6.1 (2019-07-05) -- "Action of the Toes"
Copyright (C) 2019 The R Foundation for Statistical Computing
Platform: x86_64-pc-linux-gnu (64-bit)
...
> str(base::`+`)
function (e1, e2)
> plus <- structure(base::`+`, class = "plus")
> str(plus)
function (e1, e2)
- attr(*, "class")= chr "plus"
## Hmm ...
>
2019 Nov 18
2
BUG?: A copy of base::`+` (primitive) is not a clone but a "pointer"
On 11/18/19 10:45 AM, Martin Maechler wrote:
>>>>>> Tomas Kalibera
>>>>>> on Mon, 18 Nov 2019 09:36:14 +0100 writes:
> > On 11/18/19 9:18 AM, Martin Maechler wrote:
> >>>>>>> Henrik Bengtsson
> >>>>>>> on Sun, 17 Nov 2019 14:31:07 -0800 writes:
> >> > $ R --vanilla R
2009 Nov 25
1
group generics
I have classes A and B, where B contains A. In the implementation of
the group generic for B I would like to use the corresponding group
generic for A. Is there a way to do that?
I would also appreciate any comments if what I'm trying to do seems like
the wrong approach.
Here's a stripped down example:
setClass("A",
2007 Mar 23
1
substitute and S4 objects
Hi all,
I don't understand why this does not what I expect :
## code start here ##############
setClass("num",representation(x="numeric"))
num<-function(x) new("num",x=x)
add<-function(e1,e2) {
cat("Computing
",deparse(substitute(e1)),"+",deparse(substitute(e2)),"\n")
e1@x+e2@x
}
2008 Mar 13
2
Making custom unary operators in R
Hello,
Is there a way to define a custom unary operator in R (other than making a
class and 'overloading' the normal unary operators in R)? The
documentation seems to suggest that only custom binary operators are
possible with the ``%abc%``construct but I was wondering whether any one
has done so. None of the RSiteSearch or RSeek queries I posed suggested
that this question had
2018 Mar 21
2
AMI potential memory leak
We are communicating with Asterisk via AMI. Running Asterisk version 13.18.5 on an Ubuntu box.
If you look at the event response, the Result field is filled with random characters. I'm not sure what to do because that is a completely random result. It makes no sense.
We send the following command to asterisk via AMI
Action: AGI
ActionID: C44415
Channel: SIP/192.168.40.105-00001338
2011 Nov 02
1
overloading + operator for chars
Hello,
I would like to overload the "+" operator so that it can be used to concatenate two strings, e.g "John" + "Doe" = "JohnDoe".
How can I 'unseal' the "+" method?
> setMethod("+", signature(e1="character", e2="character"), function(e1, e2) paste(e1, e2, sep="") )
Error in
2004 May 27
2
ANOVA and contrasts
Dears members of R list,
I would like that a more experienced R user help me to complete
this analysis:
r = gl(3, 8, label = c('r1', 'r2', 'r3'))
e = rep(gl(2, 4, label = c('e1', 'e2')), 3)
y = c(26.2, 26.0, 25.0, 25.4, 24.8, 24.6, 26.7, 25.2, 25.7, 26.3, 25.1, 26.4,
19.6, 21.1, 19.0, 18.6, 22.8, 19.4, 18.8, 19.2, 19.8, 21.4, 22.8, 21.3)
df =
2008 Jul 29
1
environment question
Hi R users!
I was looking at some of the example code for the "environment"
function. Here it is:
e1 <- new.env(parent = baseenv()) # this one has enclosure package:base.
e2 <- new.env(parent = e1)
assign("a", 3, envir=e1)
ls(e1)
ls(e2)
exists("a", envir=e2) # this succeeds by inheritance
exists("a", envir=e2, inherits = FALSE)
2012 Jul 11
2
help with merging 2 data frames
Dear R-ers,
I feel I am close, but can't get it quite right.
Thanks a lot for your help!
Dimitri
# I have 2 data frames:
x<-data.frame(a=c("aa","aa","ab","ab","ba","ba","bb","bb"),b=c(1:2,1:2,1:2,1:2),d=c(10,20,30,40,50,60,70,80))
2010 Sep 01
2
testing for emptyenv
Dear R-users,
Is there a way to test whether a particular environment e is equal to emtyenv(), or for that sake whether two environments e1 and e2 are equal?
I tried a couple of ways to compare environments, but neither seem to work:
> e1 <- new.env()
> e2 <- new.env()
> e1 == e2
Error in e1 == e2 :
comparison (1) is possible only for atomic and list types
> all.equal(e1,
2006 Sep 15
1
setMethod() woes
Hello everybody
R version 2.4.0 alpha (2006-09-15 r39323), MacOSX 10.4.7
Next S4 problem.
I have "brob" objects that are large real numbers, and now I want "glub"
numbers that are to be a pair of glubs that represent complex numbers.
I want to define binary operator "+" so that if either the left or right
argument are glubs, it uses .ArithGlub.
If either
2004 Jul 06
1
questions about setMethod("Arith", ...)
Hi,
we have some questions concerning the definition of new arithmetic methods.
In our package "distr" (on CRAN) we define some new arithmetic methods
for "+", "-", "*", "/".
After loading "distr" the corresponding arithmetic methods work. Now, if
we define a new
class and also a new method for one of the arithmetic methods